AN ISO 9001:2000 COMPANY
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PRESSURE GAUGES AND
SU
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DIFFERENTIAL PRESSURE
GAUGES
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AN ISO 9001:2000 COMPANY
PRESSURE GAUGES
3
Bourdon Sensing
Pressure Gauges
Capsule Sensing
Pressure Gauges
9
15
Receiver Gauges
21
Indicating
Pressure Switches
27
Chemical /
Diaphragm Seal Unit
Liquid Filled
Pressure Gauges
5
11
Diaphragm Sensing
Pressure Gauges
17
Absolute
Pressure Gauges
23
Hygiene Gauges
Accessories
30
Safety Pattern
Solid Front
Pressure Gauges
7
13
Bourdon Sensing
Pressure Gauges 250mm
19
Master
Pressure Gauges
25
Bourdon Sensing
Pressure Gauges 40 - 50-63
Bourdon Sensing Pressure Gauges
MODEL : BSPG
Features
Compliance to latest EN-837 standard
n
Range : (-) 1 to 1600 kg/cm²
n
Bourdon in SS316 Ti as standard providing
n
better mechanical properties guaranteeing
repeatability and accuracy
Accuracy ± 1% FSD (Standard), ± 0.5% FSD on request
n
Unit of measurement - kg/cm², bar,
n
PSI, KPa, mbar
n
Pressure Gauges intended for Process Industries such as Chemicals, Petro-chemicals,
Energy or Gas industry, Food processing, Nuclear etc.
n
These pressure gauges have been designed to satisfy requirements to operate in
aggressive environment.
Specifications
Table 1
Ref. Standard
Dial
Gauge
System Bar, kg/cm2 Least count
Vacuum
PB, SS
(-)1 to 0
0.02
Compound
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-)1 to 0.6
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
Pressure
Gauge
(‘C’ shaped
Bourdon)
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 0.4
0 to 0.6
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.01
0.01
0.02
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
1.0
2.0
SS
SS
SS
SS
SS
SS
SS
0 to 160
0 to 250
0 to 400
0 to 600
0 to 800
0 to 1000
0 to 1600
5.0
5.0
10.0
10.0
20.0
20.0
50.0
EN-837
100 mm / 150 mm in Aluminium, white background,
black markings
Case
Diecast aluminium with screwed bezel, epoxy painted
black / SS304 with bayonet bezel (SS316 on request)
Phenol with screwed bezel
Protection
IP-68 (IS :13947 Part I)
Bourdon
Phosphor Bronze, SS316 Ti / SS316L, Monel
Socket
22mm Square in brass, SS316, SS316 Ti /
SS316L, Monel
Movement
Brass, SS304, SS316
Range
As EN 837 (refer table 1) minimum span 0.4 kg/cm2,
maximum 1600 kg/cm2
Connection
1/2" NPT (M) as standard (other optional)
Accuracy
± 1% FSD (0.5% on request)
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Blow out disc
Provided (on top)
Optional
IBR certification
Maxima pointer
NACE compliance
External zero setting
Integral Dampener
Swivel connection to facilitate rotation and in
turn positioning of pressure gauge
Note
Non ferrous system is recommended up to 40 kg/cm²g
System
Bourdon
Socket
PB
Ph. Bronze
Brass
Movement
Brass
SS
SS316
SS316
SS304
Monel
Monel
Monel
SS304
Pressure
Gauge
Coil type
Bourdon
For range other then above please contact our design dept.
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
3
Ordering Information
MODEL : BSPG
OPTION
MOUNTING
V
C
S
P
B
A +/- 0.5% Accuracy
C Colour band
CE CE Certificate
D Dual Scale
E External Zero reset
(for Al, S4 and S6 case)
F Flanged process connection **
I IBR
L Nil
M Maxima Pointer
N NACE-MR-01-75
O O2 Cleaning
R 150% over range
U Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
Y Integral Dampener
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
DIAL
10 - 100 mm
15 - 150 mm
CASE
PH
AL
S4
S6
Phenol*
Die-cast Aluminium
SS304
SS316
P
S
L
M
T
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
Monel / Monel
SS316Ti/SS316Ti
BOURDON/SOCKET
UNIT
A
B
C
D
E
F
MOVEMENT
2 - Brass
4 - SS304
6 - SS316
RANGE
Refer Table 1
CONNECTION
TYPE
MALE / FEMALE METRIC THREADS
18 M - M 18 x 1.5
M Male
20 M - M 20 x 1.5
Female
F
24 M - M 24 x 1.5
27 M - M 27 x 2
PF PF
33 M - M 33 x 2
25 1” GS Gas
X X - Any other
1.1/4”
32
NS NPSM
40 1.1/2”
SIZE
6 1/4”
10 3/8”
15 1/2”
20 3/4”
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
Pl. specify
NT NPT
BP BSP
BT BSPT
** For Flanged Process Connection refer the table (mentioned separately)
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
4
www.general-gauges.com
Liquid Filled Pressure Gauges
MODEL : LFBSPG
Features
Compliance to latest EN-837 standard
n
Range : (-) 1 to 1600 kg/cm²
n
Bourdon in SS316 Ti as standard providing
n
better mechanical properties guaranteeing
repeatability and accuracy
n
Accuracy ± 1% FSD (Standard), ± 0.5% FSD on request
Unit of measurement - kg/cm², bar,
n
PSI, KPa, mbar
Filling fluid - Glycerine / Silicon oil / Halo Carbon
n
n
Rugged, liquid filled pressure gauges, especially designed for Hydraulic
Systems, Pumps, Compressors, Diesel Engines, Agricultural equipment,
Machine tools etc.
n
Excellent resistance to vibration & corrosive ambient conditions.
Specifications
Table 1
Ref. Standard
Dial
Gauge
System Bar, kg/cm2 Least count
Vacuum
PB, SS
(-)1 to 0
0.02
Compound
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-)1 to 0.6
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
Pressure
Gauge
(‘C’ shaped
Bourdon)
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 0.4
0 to 0.6
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.01
0.01
0.02
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
1.0
2.0
SS
SS
SS
SS
SS
SS
SS
0 to 160
0 to 250
0 to 400
0 to 600
0 to 800
0 to 1000
0 to 1600
5.0
5.0
10.0
10.0
20.0
20.0
50.0
EN-837
100 mm / 150 mm in Aluminium, white background,
black markings
Case
SS304 with bayonet bezel (SS316 on request)
Protection
IP-68 (IS :13947 Part I)
Bourdon
Phosphor Bronze, SS316 Ti / SS316L, Monel
Socket
22mm Square in brass, SS316, SS316 Ti /
SS316L, Monel
Movement
Brass, SS304, SS316
Range
As EN 837 (refer table 1) minimum span 0.4 kg/cm2,
maximum 1600 kg/cm2
Connection
1/2" NPT (M) as standard (other optional)
Accuracy
± 1% FSD (0.5% on request)
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Blow out disc
Provided (on top)
Optional
IBR certification
NACE compliance
External zero setting
Integral Dampener
Swivel connection to facilitate rotation and in
turn positioning of pressure gauge
Note
Non ferrous system is recommended up to 40 kg/cm²g
Glycerine filled guages are not recommended for oxidising services.
System
Bourdon
Socket
PB
Ph. Bronze
Brass
Movement
Brass
SS
SS316
SS316
SS304
Monel
Monel
Monel
SS304
Pressure
Gauge
Coil type
Bourdon
For range other then above please contact our design dept.
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
5
Ordering Information
MODEL : LFBSPG
OPTION
MOUNTING
V
C
S
P
B
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
A
C
CE
D
E
F
I
L
N
O
R
U
+/- 0.5% Accuracy
Colour band
CE Certificate
Dual Scale
External Zero reset
Flanged process connection **
IBR
Nil
NACE-MR-01-75
O2 Cleaning
150% over range
Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
Y Integral Dampener
DIAL
10 - 100 mm
15 - 150 mm
CASE
S4 SS304
S6 SS316
FILLING FLUID
G Glycerine
S Silicon oil
H Halocarbon
UNIT
BOURDON/SOCKET
P
S
L
M
T
A
B
C
D
E
F
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
Monel / Monel
SS316Ti/SS316Ti
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
Pl. specify
MOVEMENT
RANGE
2 - Brass
4 - SS304
6 - SS316
Refer Table 1
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
6
www.general-gauges.com
Safety Pattern- Solid Front Pr. Gauges
MODEL : SFBSPG
Features
n
Safety pattern
n
All SS construction
Theses Pressure Gauges are well suited for the Process
Industries such as Chemicals, Petro-chemicals, Energy or
Gas industry, Food processing, Nuclear etc.
n
These version have been developed with solid baffle wall and blow
out back which immediately releases in the event of accidental
tube rupture .
Specifications
Table 1
Dial
Gauge
System Bar, kg/cm2 Least count
Vacuum
PB, SS
(-)1 to 0
0.02
Compound
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-)1 to 0.6
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
Pressure
Gauge
(‘C’ shaped
Bourdon)
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 0.4
0 to 0.6
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.01
0.01
0.02
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
1.0
2.0
SS
SS
SS
SS
SS
SS
SS
0 to 160
0 to 250
0 to 400
0 to 600
0 to 800
0 to 1000
0 to 1600
5.0
5.0
10.0
10.0
20.0
20.0
50.0
100/150 mm, aluminium, white background, black
markings
Case
SS304, SS316 with bayonet bezel
Protection
Weatherproof to IP-68 ( IS : 13947 part I )60529
Ref. standard
EN 837
Bourdon
SS316 Ti, SS316L, Monel
Socket
22 mm Square in SS 316, SS316L, SS316 Ti, Monel
Movement
SS304, SS316
Range
As EN 837 (refer table-1) minimum span
0.4 kg/cm2, maximum 1600 kg/cm2g
Accuracy
± 1% FSD (0.5% on request)
Over range
130% FSD
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Optional
NACE compliance
Liquid filled case
External zero setting mechanism
Pressure
Gauge
Coil type
Bourdon
For range other then above please contact our design dept.
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
7
Ordering Information
MODEL : SFBSPG
OPTION
MOUNTING
V
C
B
S
A +/- 0.5% Accuracy
C Colour band
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Back Entry, Surface Mounting
Bottom Entry, Surface Mounting
CE CE Certificate
D Dual Scale
E External Zero reset
F Flanged process connection **
G Glycerine Filled Case
I IBR
L Nil
M Maxima Pointer
N NACE-MR-01-75
O O2 Cleaning
R 150% over range
S Silicon oil Filled Case
U Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
DIAL
10 - 100 mm
15 - 150 mm
CASE
S4 SS304
S6 SS316
BOURDON/SOCKET
P
S
L
M
T
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
Monel / Monel
SS316Ti/SS316Ti
MOVEMENT
UNIT
2 - Brass
4 - SS304
6 - SS316
A
B
C
D
E
F
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
** For Flanged Process Connection refer the table (mentioned separately)
* For surface mounting, min 20 mm gap is recommended
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
specify
RANGE
Specify from Table 1
minimum 0 - 0.4 kg/cm2g
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
8
www.general-gauges.com
Capsule Sensing Pressure Gauges
MODEL : CSPG
Features
n
Low range with high accuracy
n
All SS internals
n
Accuracy ±1% FSD
n
Compact design avoids use of bulky manometers
n
Ingress protection class IP-67
n
These Pressure Gauges are well suited for low pressure measurement.
n
The sensing Element Capsule, is made of 2 Stainless Steel
Laser-welded Diaphragms.
Specifications
Table 3
Dial
Range in mm WC
Case
Pointer
Protection
Capsule
Socket
Movement
Connection
Range
Accuracy
Over range
Zero reset
Blow out disc
100 mm, 150 mm Aluminium
white background, black figures
Diecast aluminium with screwed bezel / SS304,
SS316 with bayonet bezel
Light weight, balanced, aluminium
IP-68 (IS : 13947 Part I )
SS316L (made of two SS 316L diaphragms
laser-welded )
SS316 / SS316L
Fine
1/2"NPT (M) as standard (other optional )
Refer table- 3
±1% FSD
110% FSD Standard, Other on request
Provided (Internal)
Provided
0-60
0-100
0-150
0-250
0-400
0-500
0-600
0-750
0-1000
0-1600
0-2000
0-2500
0-4000
0-6000
(-)25 to (+)25
(-)40 to (+)60
(-)200 to (+)200
(-)100 to (+)100
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
9
Ordering Information
MODEL : CSPG
OPTION
MOUNTING
V
C
S
P
B
C Colour band
CE CE Certificate
D Dual Scale
E External zero reset
L Nil
N NACE-MR-01-75
O O2 Cleaning
X Accessory - Refer
Catalogue ACC
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
DIAL
10 - 100 mm
15 - 150 mm
CASE
UNIT
AL Die-cast Aluminium
S4 SS304
S6 SS316
A mm WC
B specify
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
RANGE
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
Refer Table 3
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
10
www.general-gauges.com
Diaphragm Sensing Pressure Gauges
MODEL : DSPG
Features
n
Compliance to latest EN-837 standard
n
Range : (-) 10000 to (+)10000 mmWC
Specifications
Table 2
Dial
0-250 mm WC
(-) 250 to 0 mm WC
0-400 mm WC
(-) 400 to 0 mm WC
0-600 mm WC
(-) 600 to 0 mm WC
0-1000 mm WC
(-) 1000 to 0 mm WC
0-1600 mm WC
(-) 1600 to 0 mm WC
0-2500 mm WC
(-) 2500 to 0 mm WC
0-4000 mm WC
(-) 4000 to 0 mm WC
0-6000 mm WC
(-) 6000 to 0 mm WC
100/150mm, aluminium , black marking on white
background
Case
Diecast aluminium with screwed bezel / SS304, SS316
with bayonet bezel
Protection
IP-68 (IS : 13947 part I)
Top Flange
CS/SS304/SS316
Diaphragm
SS316, PTFE lined SS316
(other material optional)
Bottom flange
SS304/SS316, SS316 + PTFE Block,
PTFE lined SS316 (other material optional)
Connection
1/2" NPT (M) or flanged (specify size & rating)
Range
Refer table - 2
Accuracy
±2% FSD (1.6% FSD on request)
Over range
120% FSD
Zero adjustment Micrometer pointer
Blow out disc
Provided
Optional
1) Flushing connection on the bottom flange to
facilitate cleaning
2) Glycerine / Silicon oil filled SS304 or SS316 case
3) Solid front SS304 or SS316 case
4) Special Construction for withstand high design
pressure
Note
0-1.0 Bar or 0-10000 mm WC (-) 10000 to 0 mmWC
Special combination for compound ranges available.
1) PTFE block construction possible in flange
connection alone.
2) PTFE moulded I sections for flanged connections
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
11
Ordering Information
MODEL : DSPG
OPTION
MOUNTING
A +/- 1.6% Accuracy
C Colour band
CE CE Certificate
D Dual Scale
E External Zero reset
F Flanged process connection **
FC flushing connection #
G Glycerine Filled Case
L Nil
M Maxima Pointer
N NACE-MR-01-75
O O2 Cleaning
R 150% over range
S Silicon Oil Filled Case
X Accessory - Refer
Catalogue ACC
V Bottom Entry, Local Mounting
S Bottom Entry, Surface Mounting
V/SF Bottom Entry, Local Mounting
with solid front case
S/SF Bottom Entry, Bracket Mounting
with solid front case
DIAL
10 - 100 mm
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
TOP CHAMBER
C CS
S4 SS304
S6 SS316
UNIT
A mm WC
B specify
DIAPHRAGM
S6
SL
ST
SP
M4
SS316
SS316L
SS316Ti
SS316+PTFE
Monel 400
S6
SL
ST
SP
16
15
SS316
SS316L
SS316Ti
SS316+PTFE
Inconel 600
Inconel 625
HB
HC
TI
NI
TA
Hastelloy B
Hastelloy C
Titanium
Nickel
Tantalum
RANGE
Refer Table 2
BOTTOM CHAMBER
M4
HB
HC
TI
NI
F - FLANGED PROCESS CONNECTION **
Monel 400
Hastelloy B
Hastelloy C
Titanium
Nickel
Size Code Rating Code Facing Code
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
** For Flanged Process Connection refer the table (mentioned separately)
# Pl. conform the size for the flushing connection
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
12
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Bourdon Sensing Pr. Gauges - 250mm
MODEL : BSPG25
Features
Compliance to latest EN-837 standard
n
Range : (-) 1 to 1600 kg/cm²
n
Bourdon in SS316 Ti as standard providing
n
better mechanical properties guaranteeing
repeatability and accuracy
n
Accuracy ± 1% FSD (Standard), ± 0.5% FSD on request
Unit of measurement - kg/cm², bar, PSI, KPa, mbar
n
Specifications
Table 1
Ref. Standard
Dial
Gauge
System Bar, kg/cm2 Least count
Vacuum
PB, SS
(-)1 to 0
0.02
Compound
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-)1 to 0.6
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
Pressure
Gauge
(‘C’ shaped
Bourdon)
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 0.4
0 to 0.6
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.01
0.01
0.02
0.05
0.05
0.10
0.10
0.20
0.50
0.50
1.0
1.0
2.0
SS
SS
SS
SS
SS
SS
SS
0 to 160
0 to 250
0 to 400
0 to 600
0 to 800
0 to 1000
0 to 1600
5.0
5.0
10.0
10.0
20.0
20.0
50.0
EN-837
250 mm in Aluminium, white background,
black markings
Case
Diecast aluminium with screwed bezel, epoxy painted
black / SS304 with screwed bezel (SS316 on request)
Protection
IP-68 (IS :13947 Part I)
Bourdon
Phosphor bronze, SS316 Ti / SS316L, Monel
Socket
22mm Square in brass, SS316, SS316 Ti /
SS316L, Monel
Movement
Brass, SS304, SS316
Range
As EN 837 (refer table 1) minimum span 0.4 kg/cm2,
maximum 1600 kg/cm2
Connection
1/2" NPT (M) as standard (other optional)
Accuracy
± 1.0% FSD standard (± 0.5% FSD on request)
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Blow out disc
Provided (on top)
Optional
IBR certification
NACE compliance
Swivel connection to facilitate rotation and in
turn positioning of pressure gauge
Integral Dampener
Note
Non ferrous system is recommended up to 40 kg/cm²g
System
Bourdon
Socket
PB
Ph. Bronze
Brass
Movement
Brass
SS
SS316
SS316
SS304
Monel
Monel
Monel
SS304
Pressure
Gauge
Coil type
Bourdon
For range other then above please contact our design dept.
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
13
Ordering Information
MODEL : BSPG25
OPTION
MOUNTING
V
C
S
P
B
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
A
C
CE
D
E
F
I
L
N
O
R
U
+/- 0.5% Accuracy
Colour band
CE Certificate
Dual Scale
External Zero reset
Flanged process connection **
IBR
Nil
NACE-MR-01-75
O2 Cleaning
150% over range
Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
Y Integral Dampener
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
BOURDON/SOCKET
P
S
L
M
T
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
Monel / Monel
SS316Ti/SS316Ti
UNIT
MOVEMENT
A
B
C
D
E
F
2 - Brass
4 - SS304
6 - SS316
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
** For Flanged Process Connection refer the table (mentioned separately)
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
Pl. specify
RANGE
Refer Table 1
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
14
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Receiver Gauges
MODEL : RG
Features
n
Suitable for receiving pneumatic signals of level and flow transmitters
n
Compliance to latest EN-837 standard
n
Input Range : 0.2 to 1 kg/cm² OR 3 to 15 psi
n
Accuracy ± 1% FSD
Specifications
Ref. Standard
Dial
EN-837
100 mm / 150 mm in Aluminium, white background,
black markings
Case
Diecast aluminium with screwed bezel, epoxy painted
black / SS304 with bayonet bezel (SS316 on request)
Phenol with screwed bezel
Protection
IP-68 (IS :13947 Part I)
Bourdon
Phosphor Bronze, SS316 Ti / SS316L
Socket
22mm Square in brass, SS316, SS316 Ti /
SS316L
Movement
Brass, SS304, SS316
Input Range
0.2 to 1 kg/cm² OR 3 to 15 PSI
Scale
0 - 100% Linear OR 0 - 10 Sq. root OR 0 - 100% Sq. root
Connection
1/2" NPT (M) as standard (other optional)
Accuracy
± 1% FSD
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Blow out disc
Provided (on top)
System
Bourdon
Socket
PB
Ph. Bronze
Brass
Movement
Brass
SS
SS316
SS316
SS304
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
15
Ordering Information
MODEL : RG
INPUT RANGE
MOUNTING
V
C
S
P
B
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
1 0.2 - 1 kg/ cm²
2 0.2 - 1 Bar
3 3 - 15 PSI
SCALE
1
2
3
4
DIAL
10 - 100 mm
15 - 150 mm
0 - 100% Linear
0 - 10 Sq. root
0 - 100% Sq. root
Other - Pl. Specify
CASE
PH
AL
S4
S6
Phenol*
Die-cast Aluminium
SS304
SS316
OPTION
CE CE Certificate
L
N
O
R
S
X
BOURDON/SOCKET
P
S
L
T
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
SS316Ti/SS316Ti
Nil
NACE-MR-01-75
O2 Cleaning
150% over range
Integral Dampner
Accessory - Refer
Catalogue ACC
MOVEMENT
2 - Brass
4 - SS304
6 - SS316
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
16
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Absolute Pressure Gauges
MODEL : APG
Why Absolute Pressure Gauge?
The atmospheric pressure varies from place to place depending up on
the altitude of the location and prevailing weather conditions. In such
variable conditions, precise pressure measurement can be arrived only
if a fixed (un-changing) reference point is established.
For this purpose we have developed element of Twin Bellows, one of
the same is totally evacuated and sealed, which shall be the reference
point for calibration i.e. Absolute Zero. These twin bellows are
connected through a special type of movement, by which any change
in the atmospheric pressure is compensated, and thereby the gauge
gives the absolute pressure irrespective of the location.
Features
Compliance to latest EN-837 standard
n
Range : 760-0 mmHg
n
Capsule/Bellow in SS316 as standard providing
n
better mechanical properties guaranteeing
repeatability and accuracy
Accuracy ± 1% FSD
n
Unit of measurement - mmHg, mmWC
n
Specifications
Ref. Standard
Dial
EN-837
150 mm in Aluminium, white background,
black markings
Case
Diecast aluminium / Ss304 / SS316 with screwed
bezel
Protection
IP-68 (IS :13947 Part I)
Sensor
Capsule / Bellow in SS316
Socket
22mm Square in SS316
Movement
Brass, SS304, SS316
Connection
1/2" NPT (M) as standard (other optional)
Accuracy
± 1% FSD
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment External
Optional
NACE compliance
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
17
Ordering Information
MODEL :APG
OPTION
MOUNTING
V
C
S
P
B
D Dual Scale
N NACE-MR-01-75
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
X Accessory - Refer
Catalogue ACC
UNIT
DIAL
A
B
C
D
E
F
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 Ss304
S6 SS316
kg/cm2 (a)
Bar (a)
PSI
KPa
mmHg(a)
Pl. specify
RANGE
Refer Table 1
CAPSULE/BELLOW
SS316
MOVEMENT
2 - Brass
4 - SS304
6 - SS316
CONNECTION
TYPE
MALE / FEMALE METRIC THREADS
18 M - M 18 x 1.5
M Male
20 M - M 20 x 1.5
Female
F
24 M - M 24 x 1.5
27 M - M 27 x 2
PF PF
33 M - M 33 x 2
25 1” GS Gas
X X - Any other
1.1/4”
32
NS NPSM
40 1.1/2”
SIZE
6 1/4”
10 3/8”
15 1/2”
20 3/4”
NT NPT
BP BSP
BT BSPT
** For Flanged Process Connection refer the table (mentioned separately)
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
18
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Master Pressure Gauges
MODEL : MPG
Features
n
Accuracy class ± 0.25%
n
Rugged construction
n
1.2 fold overrange capability
n
Traceability to national/international standard / laboratory
Table 1
Specifications
Ref. Standard
EN 837
Normal size
150 mm / 250 mm
Case
Diecast aluminium / SS304
Bezel
Aluminium / SS304
Dial
Anti parallax mirror type, white, with black markings.
Window
Instrument glass
Pointer
Balanced knife edge
Measuring element Bourdon in SS316 Ti
Movement
Precision brass, jewel bearings
Connection
1/2" NPT (M), bottom or back eccentric in brass or
SS316
Range
760 mm Hg Vac upto 600 bar g
(Refer table -1 of Bourdon Sensing Pressure Gauge )
Scale
Bar (g), kg/cm2g, PSI (dual scale)
Accuracy
± 0.25%
Overrange
1.2 times maximum rating for short duration
Suitability
Media up to 50°C
ambient (-) 25°C to 60°C
Option
Pressure comparator bench can be supplied.
Pressure comparator bench consists of
pressure raising by screw press, reservoir
for filling the system.
The pressure is released to atmosphere by opening
valve between reservoir and the system after screw
press has been reversed to lower pressure. It has
maintenance free operation.
Range
Bar, kg/cm2
least Count
NG 150
NG250
(-)1 to 0
0.005
0.005
(-)1 to 0.6
0.01
0.005
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.02
0.02
0.05
0.05
0.1
0.2
0.2
0.005
0.01
0.02
0.02
0.05
0.05
0.1
0.2
0.2
0.5
0.5
0.01
0.02
0.02
0.05
0.05
0.1
0.2
0.005
0.005
0.01
0.02
0.02
0.05
0.05
0.1
0.2
0.2
0.5
0 to 160
1.0
0.5
0 to 250
2.0
1.0
0 to 400
2.0
2.0
0 to 600
5.0
2.0
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
19
Ordering Information
MODEL : MPG
OPTION
MOUNTING
V
C
S
P
B
CE CE Certificate
P Pressure Comparator Bench
X Accessory - Refer
Catalogue ACC
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
UNIT
DIAL
A
B
C
D
E
F
15 - 150 mm
25 - 250 mm
CASE
AL Die-cast Aluminium
S4 SS304
RANGE
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
specify
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
Refer Table 1
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
20
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Indicating Pressure Switches
MODEL : IPSH
Features
Combination of indication and switch
n
Choice of electrical contacts and microswitch
n
One or two contacts possible
n
Switch setting throughout the range externally
n
High repeatability and low hysteresis
n
Weatherproof or Flameproof housing
n
Mil connector provided optionally.
n
Table 1
Specifications
Dial
Case
Protection
Bourdon
Socket
Movement
Connection
Range
Accuracy
Overrange
Blow out disc
Zero reset
Contacts
Accessory
100 mm / 150 mm, aluminium, white background, black markings
Diecast aluminium with screwed bezel
SS304, SS316 with bayonet bezel
Weatherproof to IP - 68 (IS 13947 part I)
Flameproof to IIA IIB (equivalent to NEC C1. I, Div. 2, Gr. C & D)
SS316 Ti, Monel, Phosphor Bronze, SS316L
SS316, Monel, brass, SS316L, SS316 Ti
SS304 for SPST, brass (with SPDT microswitch)
1/2" NPT (M) as standard
(-)1 to 1600 kg /cm2 minimum span of 4 kg/cm2 (only
standard ranges as mentioned under table 1
± 1% FSD for indication ± 2% FSD for switching
130% FSD
Provided
Provided (Micrometer Pointer)
1SPST, single, normally open, closing on rise in pressure or
vice versa, rated 30VA @ 230V AC
2 SPST, two contacts , independently adjustable, one normally
open, other normally closed or both normally open or both
normally closed, rated 30VA @ 230V AC
1SPDT, single microswitch, adjustable over entire range,
rated 5 amp @ 230V AC (3A @ 28 VDC)
2SPDT, double microswitch, adjustable over entire range,
rated 5 amp @ 230V AC (3A @ 28 VDC)
Relay for the contact assembly to suit 5 amp @ 230V
AC, separately mounted.
System Bar, kg/cm2 Least count
Compound
PB, SS
(-)1 to 3
0.10
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
0.10
0.20
0.50
0.50
1.0
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
0.10
0.10
0.20
0.50
0.50
1.0
1.0
2.0
Pressure
Gauge
(‘C’ shaped
Bourdon)
Pressure
SS
0 to 160
5.0
Gauge
Coil type
Bourdon
SS
SS
SS
SS
SS
SS
0 to 250
0 to 400
0 to 600
0 to 800
0 to 1000
0 to 1600
5.0
10.0
10.0
20.0
20.0
50.0
For range other then above please contact our design dept.
Notes
Benefits of Microswitch type
over contact assembly
n
Microswitch is rated 5 amp @ 230 VAC (3A @ 28 VDC).
Hence use of relay is not required
n
Microswitch offered as a combination of movement and
switch is procured from Internationally reputed vendor.
n
Microswitch assembly provides better switching accuracy
and repeatability
Gauge
1)
2)
3)
4)
Electrical contact assembly is not offered in flameproof version.
Flameproof version available only in diecast aluminium case.
Non- ferrous system is recommended up to 40 kg/cm2
Pressure switch can also be offered with chemical seal
pressure gauges in weatherproof and flameproof cases.
5) Surface mounted flameproof housing with chemical seal
pressure gauge is available with capillary.
n
Compact design.
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
21
Ordering Information
MODEL : IPSH
OPTION
MOUNTING
V
C
S
P
B
A 1 SPDT
B 2 SPDT
C Colour band
CE CE Certificate
D Dual Scale
F Flanged Process connection **
H Flameproof housing #
I 1 SPST
J 2 SPST
L Nil
N NACE-MR-01-75
R Relay
U Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
DIAL
10 - 100 mm
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
BOURDON/SOCKET
P
S
L
M
T
Phosphor Bronze / Brass
SS316 / SS316
SS316L / SS316L
Monel / Monel
SS316Ti / SS316Ti
UNIT
A
B
C
D
E
F
MOVEMENT
2 - Brass
4 - SS304
6 - SS316
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
Specify
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
RANGE
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
Refer Table 1
** For Flanged Process Connection refer the table (mentioned separately)
# Flame proof housing available in 100 mm dia dial and in aluminium cast only.
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
22
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Hygiene Gauges
MODEL : HYG
Features
Designed for pressure measurement in Sanitary application
n
n
Designed compliance to International Dairy Federation
Compliance to latest EN-837 standard
n
Range : (-) 1 to 40 kg/cm²
n
n
Accuracy ± 1% FSD (Standard), ± 0.5% FSD on request
Unit of measurement - kg/cm², bar,
n
PSI, KPa, mbar
Micrometer pointer
n
Hygiene Gauges designed for pressure measurement in Sanitary
application in accordance with International Dairy Federation (IDF)
requirements in pharmaceutical, dairy, biotechnology, food &
beverages industries.
Specifications
Ref. Standard
Dial
EN-837
100 mm / 150 mm in Aluminium, white background,
black markings
Case
SS304 with bayonet bezel (SS316 on request)
Protection
IP-68 (IS :13947 Part I)
Diaphragm
SS 316 L welded
Movement
SS304
Range
Minimum (-)1 to 5 kg/cm², Maximum 0 - 40 kg/cm²
Filling Fluid
Silicon oil
Accuracy
± 1% FSD (0.5% on request)
Overrange
130% FSD (other on request)
Suitability
(-) 20°C to 80°C (service temperature)
Zero adjustment Micrometer pointer (internal)
Blow out disc
Provided (on top)
Optional
NACE compliance
External zero setting
Glycerine filled case
Triclover clamp
SMS fittings
Gasket
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
23
Ordering Information
MODEL : HYG
INPUT RANGE
DIAL
10 - 100 mm
15 - 150 mm
CASE
S4 SS304
S6 SS316
RANGE
Pl. specify
A
B
C
D
E
F
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
Pl. specify
OPTION
A +/- 0.5% Accuracy
C Colour band
CE CE Certificate
D Dual Scale
E External Zero reset
G Glycerine Filled Case
S SMS Fitting
T Triclover Clamp
L Nil
M Maxima Pointer
N NACE-MR-01-75
O O2 Cleaning
R 150% over range
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
24
www.general-gauges.com
Bourdon Sensing Pr. Gauges-40-50-63
MODEL : SMBSPG
Features
n
Designed to fulfill most industrial requirements as well as commercial
n
Range : (-) 1 to 600 kg/cm²
n
Bourdon in SS316 as standard
n
Accuracy ± 2% FSD
n
Unit of measurement - kg/cm², bar, PSI
n
Pressure Gauges are developed for OEM applications in compressed gases.
Lubricating circuits etc.
Table 1
Specifications
Dial
Case
Movement
Range
Accuracy
Overrange
Suitability
Blow out disc
Optional
Note
40 mm / 50 mm / 63 mm in Aluminium, white background,
black markings
Pressed Steel, epoxy painted black
SS304 with bayonet bezel
Brass, SS304
(refer table 1) minimum span 1 kg/cm2,
maximum 600 kg/cm2
± 2% FSD
130% FSD
(-) 20°C to 60°C for ferrous system (service temperature)
(-) 20°C to 60°C for non-ferrous system (service temperature)
Provided (on top)
Glycerine filled case (in SS case)
Integral Dampner
Swievel connection to facilitate rotation and in
turn positioning of pressure gauge
1) 40 mm panel mounted gauge will be provided with bracket
mounting and 50 mm & 63 mm with front flange
2) Non ferrous system is recommended up to 40 kg/cm²
System
Bourdon
Socket
PB
Ph. Bronze
Brass
Brass
SS
SS316
SS316
SS304
Gauge
System
Bar, kg/cm2
Vacuum
PB, SS
(-)1 to 0
Compound
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
(-)1 to 0.6
(-)1 to 1.5
(-)1 to 3
(-) 1 to 5
(-)1 to 9
(-)1 to 15
(-)1 to 24
(-)1 to 39
Pressure
Gauge
(‘C’ shaped
Bourdon)
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB, SS
PB,SS
PB,SS
SS
SS
0 to 0.4
0 to 0.6
0 to 1
0 to 1.6
0 to 2.5
0 to 4
0 to 6
0 to 10
0 to 16
0 to 25
0 to 40
0 to 60
0 to 100
SS
SS
SS
SS
0 to 160
0 to 250
0 to 300
0 to 350
Movement
Pressure
Gauge
Coil type
Bourdon
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
25
Ordering Information
MODEL : SMBSPG
OPTION
MOUNTING
V
C
S
P
B
Bottom Entry, Local Mounting
Back Entry, Local Mounting
Bottom Entry, Surface Mounting
Back Entry, Flush Panel Mounting
Back Entry, Surface Mounting
04 - 40 mm
05 - 50 mm
D
G
L
S
X
Dual Scale
Glycerine filled case
Nil
A
B
C
F
kg/cm2 (g)
Bar (g)
PSI
Pl. specify
DIAL
Integral Dampner
Accessory - Refer
Catalogue ACC
06 - 63 mm
UNIT
CASE
PS Pressed Steel
SS Stainless Steel
RANGE
BOURDON/SOCKET
P Phosphor Bronze / Brass
S SS316 / SS316
Refer Table 1
MOVEMENT
F - FLANGED PROCESS CONNECTION **
2 - Brass
4 - SS304
Size Code Rating Code Facing Code
CONNECTION
SIZE
4
6
10
15
20
25
32
40
1/8”
1/4”
3/8”
1/2”
3/4”
1”
1.1/4”
1.1/2”
TYPE
NT
NT
BP
BT
PF
GS
NS
NPT
NPT
BSP
BSPT
PF
Gas
NPSM
MALE / FEMALE METRIC THREADS
18 M - M 18 x 1.5
M Male
20
M - M 20 x 1.5
F Female
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
26
www.general-gauges.com
Chemical / Diaphragm Seal Unit
MODEL : CSU
Features
Where isolation is essential
n
Corrosive process fluid.
n
Process fluid having sediments or is viscous.
n
Process fluid has a tendency to solidify, freeze or crystallise at lower
temperatures which may block the sensing element.
n
Process fluid is hazardous.
n
The diaphragm seal transmits process pressure to the instrument
through a diaphragm. The instrument side of the diaphragm is filled
with appropriate fluid. As liquids are incompressible, pressure is
hydraulically transmitted to the pressure sensing element.
n
Proper selection of diaphragm seal is important after reviewing
the application.
Specifications
The generally offered MOC is as follows :
Upper housing : CS, SS304. SS316
Diaphragm
: SS316L, PTFE, PTFE coated, Titanium, Hastelloy B, C, Nickel, Monel, Tantalum
Lower housing : SS304, SS316, SS304L, SS316L,Titanium, Nickel, PTFE coated / lined,
PTFE block, Hastelloy B, C.
Filling Fluid
: Name Application range
Silicone oil(-) 40°C to 200°C
Fluorolube(-) 50°C to 150°C
Glycerine0 to 80°C
Paraffine0 to 85°C
DC-704 0 to 339°C
Halocarbon(-) 25°C to 225°C
Food grade oil 0 to 150°C
Water 20 to 80°C
Note : 1) Purchaser must confirm the suitability of the MOC suggested.
2) Capillary for remote seal can be offered.
Different types of diaphragm seal offered:
1)
2)
3)
4)
5)
6)
7)
Direct mounted
Inline flow through type with flanged connection.
Inline flow through type (jacketed)
Inline flow through type (weld in)
Extended diaphragm seal
Pan cake type diaphragm seal
I-Section type
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
27
Dimensions
1) In-line flow through type
(End connection flanged)
For application in Waste Water, Pulp & Paper,
Synthetic Fibre, where fluid is viscous and will
contain solid undissolved particles.
2) In-line flow through type
(Jacketed)
For applications where process fluid is likely
to solidify as temperature reduces. Jacketing
provided for steam or thermic fluid.
(End connection - weld in shown above)
3) In-line Flow through type
(Weld in)
End pipe suitable for butt welding to the
process pipe. For application in Waste
Water, Synthetic Fibre, Pulp & paper, etc.
4) Extended diaphragm seal
Diaphragm flushed to the process. Extension
depends upon nozzle standout. Allows
mounting in insulated vessels or pipelines.
28
5) Pan Cake type diaphragm seal
Sandwiched between loose flange (back-up
flange) and nozzle flange. For fluids which
are corrosive, contaminated, etc.
www.general-gauges.com
Ordering Information
MODEL : CSU
OPTION
CE CE Certificate
F Flanged process connection **
FC Flushing connection
FR Flushing Ring
L Nil
O O2 Cleaning
P Capillary for mounting "S" *
W Welded Diaphragm
MOUNTING
DM Direct mounted
IF Inline flow through type with
flanged connection.
IJ Inline flow through type
(jacketed)
IJ Inline flow through type (weld in)
ED Extended diaphragm seal
PC Pan cake type diaphragm seal
IS I-Section type
FILLING FLUID
S
F
G
P
D
H
V
W
TOP CHAMBER
C CS
S4 SS304
S6 SS316
DIAPHRAGM
S6
SL
ST
SP
S1
HB
HC
SS316
SS316L
SS316Ti
SS316+PTFE
SS321
Hastelloy B
Hastelloy C
S6
SL
ST
SP
S1
M4
SS316
SS316L
SS316Ti
SS316+PTFE
SS321
Monel 400
M4 Monel 400
TI Titanium
NI Nickel
TA Tantalum
SI Silver
GP Gold Plated
GL Gold
PT PTFE
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
BOTTOM CHAMBER
18 Incoloy 800
HB
HC
TI
NI
TA
Silicone oil
Fluorolube
Glycerine
Paraffine
DC-704
Halocarbon
Food grade oil
Water
Hastelloy B
Hastelloy C
Titanium
Nickel
Tantalum
15
20
25
40
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
* Length of capillary to be specified in bracket e.g. P (3) i.e. 3 mtr. capillary
** For Flanged Process Connection refer the table (mentioned separately)
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
www.general-gauges.com
29
Accessories
MODEL :ACC
Snubber
Syphon
Two way isolation valve
Pulsation dampener for pulsating
services, or where vibration exists, on
pump discharge lines, for dampening
erratic pressures. Available in materials
such as CS, SS304, SS316, Monel
standard connection 1/2” NPT(F) x
1/2” NPT(M) (please specify other
connection)
For lowering the service temperature so
that guage is exposed to lower
temperature (i.e. <600C). Generally
offered in 1/2” sch, 40 or 80 size (other
sizes also can be offered on request).
Two types - U type and pig tail type are
mainly offered, as customer desires.
Available in material like CS (A106),
SS304 SS316, P11 etc. IBR
Certification - Wherever applicable is
offered. Standard connection ½”
NPT(F) x 1/2” NPT(M).
Butt welded (plain) connection also can
be offered.
Simple needle type isolation valve used
for isolating (separating) process from
the gauge. Available in CS, SS304,
SS316. Standard connection is ½”
NPT(F) x 1/2” NPT(M). Request for
other requirements.
Gauge saver
Three way isolation
valve
Swivelling adaptor or
gauge union
Used where maximum pressure
(or design pressure) exceeded to
the overrange pressure of the
gauge. Minimum setting, generally
offered is 1 kg/cm2g. Request for
lower settings. Normally offered in
SS316 & Monel. Other material on
request. Standard connection
offered is ½” NPT.
Isolates the gauge from the process
and has drain facility. Available normally
in SS316 (other material on request).
Standard connection of 1/2” NPT(F)
x 1/2” NPT(F) x 1/2” NPT(M). (Please
specify other requirement like 1/2” BSP
or M20 x 1.5 etc.)
Facilitates positioning of the gauge
while installation. Generally offered in
the same material as that of socket i.e.
SS304, SS316, Monel. Other material
can be offered
on request.
30
www.general-gauges.com
Ordering Information
MODEL : ACC
ACCESSORY
SN Snubber
SYP Pig Tail Type Syphon
SYU “U” Type Syphon
GS Gauge Saver
GA Gauge Adaptor
BB Block & Bleed Valve
2W Two Way Isolation Valve
3W Three Way Isolation Valve
SW Swivelling adaptor
2V Two Valve Manifold
3V Three Valve Manifold
5V Five Valve Manifold
PROCESS CONNECTION
Pl. Specify
I
L
N
O
OPTION
IBR
Nil
NACE-MR-01-75
O2 Cleaning
MATERIAL
CS
S4
S6
SL
M4
F
Carbon Steel
SS304
SS316
SS316L
Monel
Pl. Specify
INSTRUMENT CONNECTION
Pl. Specify
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
www.general-gauges.com
31
NOTES
AN ISO 9001:2000 COMPANY
DIFFERENTIAL
PRESSURE GAUGES
35
37
Differential
Pressure GaugesBellow Type
Differential
Pressure GaugesDiaphragm Type
43
41
Differential
Pressure GaugesCapsule Type
Differential
Pressure GaugesMagnehelic Type
39
Differential
Pressure GaugesBellow- Diaphragm Type
45
Indicating Differential
Pressure Switch
49
In House Facilities
47
Flow Indicator
34
50
Convertion Chart
www.general-gauges.com
Differential Pr. Gauges - Bellow Type
MODEL : DPG-B
Features
n
Bellow type construction
n
Referance Standard: EN - 837
n
All SS internals
n
Screwed / Flanged connection
n
Chemical seal unit (optional) for process suitability
n
Accuracy ± 1% FSD
Microswitch type contacts as required
n
A set of two stainless steel bellows mounted on a force balance
n
enables direct reading of the actual differential pressure.
n
Each bellow of the pressure Gauge can withstand the full static
pressure without any damage or shifting being caused to
the instrument.
Specifications
Dial
Case & Bezel
Window
Pointer
Sensing
Other wetted parts
Movement
Connection
Range
Static Pressure
Accuracy
Blow out disc
Temperature suitability
Optional
6"(150mm)
Diecast aluminium / SS304 / SS316, weatherproof
to IP-68 (IS:13947 Part 1)
Toughened Glass with rubber ring
Light weight, micrometer adjustable
Bellow in SS316L
SS316 L
SS304 / SS316
½" NPT (M) as standard (other on request)
Minimum 0 to 1000 mm WC
Upto 60 kg/cm2g, Higher Static Pressure on request
± 1% FSD
Provided (top of the case)
(-) 20°C to 80°C
Chemical seal unit
Liquid filled case
Microswitch type contacts (5 Amp @ 230 VAC)
External zero mechanism
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
35
Ordering Information
MODEL : DPG-B
OPTION
MOUNTING
CE
E
G
S
N
O
D
L
P
U
CE Certificate
External zero Adjustment
Glycerin Filled Case
Silicon Oil Filled Case
NACE-MR-01-75
O2 Cleaning
Dual Scale
Nil
2" Pipe Mounting Bracket
Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
S Bottom Entry, Surface Mounting
P Back Entry, Panel Mounting
Y Yoke Mounting (2" pipe mounting)
DIAL
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
BELLOW
S6 SS316 L
STATIC PRESSURE
MOVEMENT
A SS304
B SS316
Please Specify
UNIT
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
A
B
C
D
E
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
RANGE
Please Specify
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
36
www.general-gauges.com
Differential Pr. Gauges - Diaphragm Type
MODEL : DPG-D
Features
n
Diaphragm (double diaphragm design) type construction
n
Static pressure upto 100 kg/cm2 (higher static pressure
on request upto 300 Kg/cm²)
n
Referance Standard: EN - 837
n
All SS internals
n
Screwed / Flanged connection
n
Accuracy ± 2% FSD (1.6% FSD on request - assending side)
Specifications
Dial
Case & Bezel
Window
Pointer
Sensing
Other wetted parts
Movement
Connection
Range
Static Pressure
Accuracy
Blow out disc
Temperature suitability
4" / 6" Nominal
Diecast aluminium / SS304 / SS316, weatherproof
to IP-68 (IS:13947 Part 1)
Toughened Glass with rubber ring
Light weight, micrometer adjustable
Diaphragm in SS316 / SS316L / Monel / Titanium / Hastelloy C
SS316 / SS316L / Monel / Titanium / Hastelloy C
SS304
½" NPT (M) as standard (other on request)
Minimum 0 to 600 mm WC
Upto 100 kg/cm2g max. (Higher static pressure on request)
± 2% FSD (1.6 % FSD on request)
Provided (top of the case)
(-) 20°C to 80°C
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
37
Ordering Information
MODEL : DPG-D
OPTION
MOUNTING
CE
N
O
D
L
P
X
S Bottom Entry, Surface Mounting
P Back Entry, Panel Mounting
Y Yoke Mounting (2" pipe mounting)
DIAL
10 - 100 mm
15 - 150 mm
CASE
CE Certificate
NACE-MR-01-75
O2 Cleaning
Dual Scale
Nil
2" Pipe Mounting Bracket
Accessory - Refer
Catalogue ACC
STATIC PRESSURE
AL Die-cast Aluminium
S4 SS304
S6 SS316
Please Specify
UNIT
DIAPHRAGM
A
B
C
D
E
S6 SS316
HC Hastelloy C - 276
HB Hastelloy B
M Monel 400
L SS316L
T Titanium
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
RANGE
Please Specify
MOVEMENT
A SS304
B SS316
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
38
www.general-gauges.com
Diff. Pr. Gauges-Bellow Diaphragm Type
MODEL : DPG-BD
Features
n
Bellow- Diaphragm type construction
n
Static pressure upto 40 kg/cm2 (Max.)
n
All SS internals
n
Screwed / Flanged connection
n
Accuracy ± 1% FSD
n
Unit of measurement - mbar, mmWC, kpa
n
IP-67 Protection
n
For measurement of small differential Pressures at high static Pressure.
Specifications
Dial
Case & Bezel
Window
Pointer
Sensing Element
Other wetted parts
Movement
Connection
Range
Static Pressure
Accuracy
Blow out disc
Temperature suitability
4" / 6" Nominal
SS304 / SS316, weatherproof to IP-68 (IS:13947 Part 1)
Toughened Glass with rubber ring
Micrometer pointer
Bellow- Diaphragm in SS316
SS316
SS304
½" NPT (M) as standard (other on request)
Minimum 0 to 250 mm WC
Upto 40 kg/cm2g max.
± 1% FSD
Provided (top of the case)
(-) 20°C to 80°C
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
39
Ordering Information
MODEL : DPG-BD
OPTION
MOUNTING
CE
D
L
N
O
P
X
S Bottom Entry, Surface Mounting
Y Yoke Mounting (2" pipe mounting)
DIAL
10 - 100 mm
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
STATIC PRESSURE
Please Specify
BELLOW DIAPHRAGM
UNIT
S6 SS316
A
B
C
D
E
MOVEMENT
A SS304
B SS316
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
CE Certificate
Dual Scale
Nil
NACE-MR-01-75
O2 Cleaning
2" Pipe Mounting Bracket
Accessory - Refer
Catalogue ACC
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
RANGE
Please Specify
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
40
www.general-gauges.com
Differential Pr. Gauges-Capsule Type
MODEL : DPG-C
Features
n
Low differential pressure measurement with high accuarcy
n
Sensing element- Capsule in SS316L
n
Screwed connection
n
Accuracy ± 1% FSD
n
General stainless steel capsule differential pressure gauges are
designed for measuring small differential pressures on clean & dry
air or gas system
Specifications
Dial
Case & Bezel
Window
Sensing
Connection
Range
Static Pressure
Accuracy
Temperature suitability
4"(100mm) / 6"(150mm)
SS304 / SS316, weatherproof to IP-68 (IS:13947 Part 1)
Toughened Glass with rubber ring
Capsule in SS316L
½ " NPT (M) as standard (other on request)
Any range between 0 to 60 mm WC to 0 to 1000 mmWC
10 times the range
± 1% FSD
(-) 20°C to 80°C
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
41
Ordering Information
MODEL : DPG-C
OPTION
MOUNTING
CE
N
O
X
S Bottom Entry, Surface Mounting
V Bottom Entry, Local Mounting
DIAL
10 - 100 mm
15 - 150 mm
STATIC PRESSURE
CASE
10 Times range
S4 SS304
S6 SS316
UNIT
CAPSULE
L
CE Certificate
NACE-MR-01-75
O2 Cleaning
Accessory - Refer
Catalogue ACC
E
F
SS316L
MOVEMENT
mmWC
Pl. specify
RANGE
A SS304
B SS316
Please Specify
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
42
www.general-gauges.com
Differential Pr. Gauges-Magnehelic Type
MODEL : DPG-M
Features
n
Magnet-Viton Diaphragm type construction
n
Static pressure 35 bar & 100 bar
n
Body block - SS / AL.
n
Screwed connection
n
Accuracy ± 2% FSD (Ascending)
n
Glycerine filled case as an option
n
Unit of measurement - Kg / cm², bar, mmWC
n
IP-67 Protection
Specifications
Dial
Case & Bezel
Sensing
Body Material
Magnet
Spring
Connection
Range
Static Pressure
Accuracy
Blow out disc
Temperature suitability
Optional
4" / 6" Nominal
SS 304 weatherproof to IP-65 (IS:13947 Part 1)
Diaphragm in Vitom
Aluminium / SS304 /SS316
Ceramic
SS316
¼" NPT (F) as standard (other on request)
As customer requires (Minimum 0 to 100 mm WC)
35 bar & 100 bar
± 2% FSD (on Ascending Side)
Provided (top of the case)
(-) 20°C to 80°C
Switching
: SPST
Voltage
: 230V AC/DC (max)
Rating Switch : 1SPST & 2 SPST
Capacity
: 30 VA AC/DC (max)
Current
: 1 A (max)
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
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43
Ordering Information
MODEL : DPG-M
OPTION
MOUNTING
CE
D
I
J
L
P
X
L Local (Direct) Mounting
P Panel Mounting
DIAL
10 - 100 mm
15 - 150 mm
CASE
S4 SS304
STATIC PRESSURE
DIAPHRAGM
Please Specify
V Viton
MOVEMENT
UNIT
A SS304
B SS316
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
CE Certificate
Dual Scale
1 SPST
2 SPST
Nil
2" Pipe Mounting Bracket
Accessory - Refer
Catalogue ACC
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
A
B
C
D
E
kg/cm2 (g)
Bar (g)
PSI
KPa
mmHg
RANGE
Please Specify
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
44
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Indicating Differential Pressure Switch
MODEL : IDPS
GENERAL has been designing and manufacturing high quality Diaphragm /
Bellow Type Differential pressure indicating switches to suit to most of the
industrial application for accurate control of the process equipments. Rigorous
and continuous tests are conducted for design and quality conformance.
n
Indicating Differential Pressure Switches are design to use in Pumps,
Compressors, Lubrication Systems, Turbines, Generators, Boilers, Furnances
etc. in industries such as Chemical, Fertiliser, Ferrous & Non-ferrous metal,
Pulp & Paper, Power, Waste Water Treatment, Refinery & Petrochemical,
Synthetic Fibre, etc.
Specifications
Sensing Element
Case
Cable Entry
Switch
Movement
Set Point
Mounting
Process Connection
Range
Indication Accuracy
Switching Accuracy
Repeatability
Process Temperature
Calibration
: SS316L diaphragm or bellow
: Diecast aluminium, epoxy painted, weatherproof
to IP-68 (IS:13947 Part I) or flameproof to I, IIA,
IIB (equivalent to NEC CI. 1 Gr C & D)
SS304 / SS316 optionally
: ½” NPT (F)
: I SPDT / 2 SPDT. Snap acting micro-switch
(DPDT on request) Rated 5A @ 230 VAC
(3A @ 28 VDC)
: Brass
: Adjustable throughout the range
: Surface Mounting / Pipe, also available with
Remote Seal
: 1/2” NPT (M) as standard. Other connections
optionally
: As customer requires
(minimum 0 to 1000 mm WC)
: ±1% FSD
: ±1.5 - 2% FSD
: 1% FSD
: (-)20°C to 60°C for SS wetted parts
: All switches are individually calibrated
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
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45
Ordering Information
TYPE : IDPS
OPTION
MOUNTING
A
B
CE
E
N
O
D
L
P
U
1SPDT
2SPDT
CE Certificate
External zero Adjustment
NACE-MR-01-75
O2 Cleaning
Dual Scale
Nil
2" Pipe Mounting Bracket
Chemical Seal Unit-Refer
Catalogue CSU
X Accessory - Refer
Catalogue ACC
S Bottom Entry, Surface Mounting
P Back Entry, Panel Mounting
Y Yoke Mounting (2” pipe mounting)
DIAL
15 - 150 mm
CASE
AL Die-cast Aluminium
S4 SS304
S6 SS316
DIAPHRAGM / BELLOW
S6 SS316
Static Pressure
Please Specify
MOVEMENT
Brass
UNIT
A
B
C
D
E
CONNECTION
TYPE
SIZE
MALE / FEMALE
6 1/4” NT NPT
M Male
10 3/8” BP BSP
F Female
15 1/2” BT BSPT
20 3/4” PF PF
25 1” GS Gas
32 1.1/4” NS NPSM
40 1.1/2”
METRIC THREADS
18 M - M 18 x 1.5
20 M - M 20 x 1.5
24 M - M 24 x 1.5
27 M - M 27 x 2
33 M - M 33 x 2
X X - Any other
kg/cm² (g)
Bar (g)
PSI
KPa
mmHg
RANGE
Please Specify
F - FLANGED PROCESS CONNECTION **
Size Code Rating Code Facing Code
150#
300#
600#
900#
A
B
C
D
RF
FF
RTJ
LT
RF
FF
RTJ
LT
2”
50 1500#
E
LG
LG
3”
80
2500#
F
½”
¾”
1”
1½”
15
20
25
40
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
46
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Flow Indicator
MODEL : FI
Features
n
Differential Pressure across Orifice Plate Asembly
n
Weld Neck Flange connection
n
Unit of measurement direct in terms of flow unit
n
Weatherproof to IP – 67 (IS 13947 Part 1)
Specifications
Orifice Plate Assembly
Design
Types
Plate material
Orifice Bore
Tab Plate
Vent / Drain
Flange Union
Pressure Tappings
Gasket
Studs / Nuts
Jack Screw
Conforms to ISA RP 3.2 , DIN 1952 , BS 1042, ISO-5167
Square edge concentric, Quadrant edged, Conical entrance,
Eccentric, Segmental
SS304 , SS316 , SS316L as standard. Hastelloy-C , Monel ,
PP , PVC , PTFE coated , etc. can be given on request.
In accordance with ISO-5167, BS-1042, ASME MFC 3M,
R.W.Miller, L.K.Spink, AGA-3
In the same material as plate & is welded to orifice plate.
Tag plate integral to the Orifice plate (i.e. without welding)
can also be offered as a special case.
Vent or Drain holes are provided as per customer’s
requirement. Not drilled for orifice bores smaller than 25.4 mm
Weld neck, Slip on, Threaded, Socket welded with RF or RTJ
facing Orifice flanges are in accordance with ANSI B16.36
with minimum flange rating of 300# for sizes up to 8” or
male - female flanges in accordance with ANSI B16.5.
Corner tappings are recommended for sizes upto 1 ½”; Flange
taps from 2" to 16" ; D – D/2 taps for higher sizes.
CAF as per IS: 2712 Gr 0/1 , SS spiral wound + CAF , SS
spiral wound + Grafoil, SS spiral wound + PTFE are normally
supplied as per process requirement. Other materials available
on request.
For RTJ flanges , the plate is fixed on the plate holder. The plate
holder is in Soft Iron material & acts as a gasket .
ASTM A193 Gr.B7/A-194 Gr.2H as standard, Other material
on request.
Carbon Steel ( C1038 heat treated )
Flow Indicator
Dial
Case & Bezel
Window
Pointer
Sensing
Other wetted parts
Movement
Connection
Range
Static Pressure
Accuracy
Blow out disc
Temperature suitability
Optional
6"(150mm)
Diecast aluminium / SS304 / SS316, weatherproof to IP-67 (IS:13947 Part 1)
Toughened Glass with rubber ring
Light weight, micrometer adjustable
Bellow in SS316L
SS316 L
SS304 / SS316
½" NPT (M) as standard (other on request)
Minimum 0 to 1000 mm WC
Upto 60 kg/cm2g, Higher Static Pressure on request
± 1% FSD
Provided (top of the case)
(-) 20°C to 80°C
Three Valve Manifold in SS316, suitable SS tubing and associated instrument fittings
Under Technical Collaboration with M/s. Gauges Bourdon, U.K.
www.general-gauges.com
47
Ordering Information
MODEL : FI
Flow Range
TYPE OF ORIFICE PLATE
SC Square Edge Concentric
QC Quadrant Edge Concentric
CC Conical Entrance
EC Eccentric
SE Segmental
PLATE MATERIAL
S4
S6
SL
ST
SP
S1
M4
SS304
SS316
SS316L
SS316Ti
SS316+PTFE
SS321
Monel 400
1
2
3
4
5
3.18mm
6.35mm
9.52mm
12.7mm
Please Specify
PP Poly Porpley
HB
HC
TI
PF
TA
Hastelloy B
Hastelloy C
Titanium
PTFE
Tantalum
PLATE THICKNESS
Please Specify
STATIC PRESSURE
Please Specify
UNIT
A
B
C
D
E
kg/cm2 (g)
Bar (g)
Psig
KPa
mmHg
RANGE
Please Specify
FLANGE DETAILS
Type
Weld Neck / Slip on / Threaded / Socket Weld
Size
Schedule
Rating
Facing
½ Inch to 24 Inch
Please Specify
150# / 300# / 600# / 900# / 1500# / 2500#
RF / RTJ
Material
Please Specify
The recommendations made in this catalogue are to be used as intended guide. No guarantee of material can be undertaken since other
factors may affect the performance. We reserve the right to change the specifications mentioned in this catalogue without any notice as
improvements & development is a continuous process at General. Responsibility of typographical errors is specifically disclaimed.
48
www.general-gauges.com
In House Facilities
In-House testing facilities for Pressure Gauges
Pressure Gauges, Differential Pressure Gauges and Pressure Switches are manufactured
in technical collaboration with M/s Gauges Bourdon, U.K. The same are manufactured and
tested in accordance with EN : 837 standard. According to the said international standard,
following tests are carried out to ensure the quality of Pressure Gauges. We can carry out
following tests-In-House-at our manufacturing plant.
1. Visual Inspection
9. Effects of Mechanical Shock
2. Dimensional Verification
10. Endurance test with Steady Pressure
3. Accuracy Test
11. Endurance test with Over Pressure
4. Hysteresis Test
12. Endurance test with Cyclic Pressure
5. Leak Test
13. Safety Blow-out Test
6. Influence of Mounting Position
14. Thermal stability test at rated temperature
7. Degree of Protection
15. Temperature effect test
8. Effects of Mechanical Vibration
16. Energy release test
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49
50
0.000097
0.000967
0.00425
0.968
0.03342
0.001316
0.01316
0.000987
0.987
0.00001
0.001421
0.01421
0.0625
14.22
0.4912
0.01934
0.1934
0.0145
14.504
0.000145
9.869
0.00246
0.0361
145.04
1
14.7
0.00987
0.0681
1
0.14504
atms.
psi
4019
4.019
0.00402
401.9
0.4012
5.358
0.536
13.61
394.1
1.732
0.3937
0.0394
1
407.2
27.71
“WC
102,074
102.07
0.102
10,210
10.21
136.1
13.61
345.7
10001
43.986
10
1
25.4
10,343
703.8
mm
WC
10,207
10.207
0.0102
1021
1.021
13.61
1.361
34.57
1000.1
4.4
1
0.1
2.54
1,034.30
70.38
cm
2321
2.321
0.00232
232.1
0.2321
3.1
0.31
7.858
227.6
1
0.227
0.0227
0.5775
235.1
16
oz/in²
WC
10.2
0.0102
0.00001
1.02
0.00102
0.0136
0.00136
0.0345
1
0.0044
0.001
0.0001
0.00254
1.033
0.0704
Kg/cm²
295.3
0.295
0.000295
29.53
0.0295
0.394
0.0394
1
28.96
0.1273
0.0289
0.00289
0.0735
29.92
2.036
“Hg
7500
7.5
0.0075
750
0.75
10
1
25.4
735.6
3.232
0.735
0.0735
1.866
760
51.715
mm
750
0.75
0.00075
75
0.075
1
0.1
2.54
73.56
0.3232
0.0735
0.00735
0.187
76
5.17
cm Hg
Hg
10,000
10
0.01
1,000
1
13.33
1.333
33.86
980.7
4.31
0.98
0.098
2.488
1013
68.95
mbar
10
0.01
0.00001
1
0.001
0.01333
0.001333
0.0339
0.981
0.00431
0.00098
0.000098
0.00249
1.013
0.0689
bar
1,000,000
1,000
1
100,000
100
1,333
133.3
3,386
98,067
431
98
9.8
248.8
101,325
6,895
Pa
To convert pressure from one unit to another:
1. Start at column heading with units to convert from.
2. Move down the same column to number “1”.
3. Move across this row to the column with units heading you are converting to.
4. Multiply the number in this table cell times the amount you are converting from to get the new value in converted units.
1,000
1
0.001
100
0.1
1.333
0.1333
3.386
98.07
0.431
0.098
0.0098
0.249
101.3
6.895
KPa
(N/m²)
1
0.001
0.000001
0.1
0.0001
0.00133
0.000133
0.00339
0.0981
0.00043
0.0001
0.00001
0.00025
0.1013
0.0069
MPa
Convertion Chart
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51
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HEAD OFFICE: 194/195, Gopi Tank Road, Mahim, Mumbai - 400016.
Tel: 022-24454387, 24449177 Fax: 24463507
E-mail: info@general-gauges.com Website: www.general-gauges.com
visit our AV presentation on www.general-gauges-corporatefilm.com
PLANT:
Gauges Bourdon(I) Pvt. Ltd.
(Under technical collaboration with M/s. Gauges Bourdon, U.K.)
4, 5, 6 Jawahar Co-op Industrial Estate, Kamothe, Panvel- 410209.
Tel: 022-27421095, 27421903, 27423744, 27423745 Fax: 27421901
E-mail: gbipl@bom8.vsnl.net.in
BANGALORE:
‘B’ Wing - 1005, Mittal Tower, M G Road – 560001.
Telefax : 080-41510946
E-mail: gicbangalore@generalinstruments.net
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7, Block AD, II Avenue, Anna Nagar - 600040
Ph: 044-26211763 Fax: 26203910
E-mail: gicchennai@generalinstruments.net
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511, Eros Apartments, 56, Nehru Place -110019
Ph: 011-26433201 Fax: 41607464
E-mail: gicdelhi@generalinstruments.net
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715, Yashkamal Building, Tilak Road - 390005
Ph: 0265-22235192 Telefax: 22362475
E-mail: gicbaroda@generalinstruments.net
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