Process screen basket filter
PRFS
PRFS130x
PRFS250x
PRFS520x
PRFS650x
PRFS1500x
PRFS2500x
Specifications
Nominal
DN 50 – DN 700
size:
Qs max:
3600 m³/h
ps max:
16 bar
Filtration
25 – 10000 µm
ratings:
1. GENERAL
Product description
●● Screen basket filter
●● Used as coarse filter, bypass filter or
pre-separator
2)
3)
Stainless steel: 1.4301 or similar (group 304)
Stainless steel 1.4571 or similar (group 316)
Internally coated container
TS max +60°C – higher temperature on request
Higher pressure ranges on request
Volume
[l]
●
●
70
26
●
●
●
115
46
186
118
280
225
-10 to +90
pS max
[bar]
6 / 10 / 16
TS max 2)
[°C]
●
3)
Weight
[kg]
Stainless steel
1)
Mounting dimension
[DN]
Size
With
520x
150 / 200 / 250
●
●
●
650x
200 / 250 / 300
●
●
●
●
●
●
540
440
●
●
●
930
1350
1500x
2500x
250 / 300 / 350 /
400 / 500
350 / 400 / 500 /
600 / 700
Total filter area
130x
1
SK-3-…
2035
250x
1
SK-4-…
2850
520x
3
SK-3-…
6105
650x
4
SK-4-…
11400
1500x
7
SK-4-…
19950
2500x
5
SK-5-…
37000
Filter materials and filtration ratings
[µm]
Wire mesh,
reinforced
with
perforated
plate
25
40
60
80
100
150
200
250
500
1000
Wedge Perforated
wire
plate
50
100
200
250
300
500
1000
2000
3000
3000
5000
10000
Permitted
differential
pressure
[bar]
Screen basket type
Technical data, screen basket inserts
6
EN 7.712.3/01.19
1)
250x
50 / 65 / 80 / 100 /
125 / 150
100 / 125 / 150 /
200 / 250
Carbon steel
Internal corrosion
protection
Without
No. of screen
baskets
Product advantages
●● High filtration efficiency
●● Simple handling
●● Robust filter materials are ideally
suited to long-term operation
●● Cleanable filter materials
●● Low operating costs
●● Numerous versions
●● Particles cannot reach the clean side
when basket is exchanged
●● Also available as a switchable double
filter
130x
Materials
Series
Screen basket technology
●● Screen basket insert with bracket
–– Wire mesh: 25 to 1000 µm
–– Wedge wire: 50 to 3000 µm
–– Perforated plate: 3000 to 10000
µm
Technical data, filter housing
1
2. FUNCTION AND SPECIAL FEATURES
FUNCTION
●● The filter element is flooded from the inside to the outside
●● Separated solids remain inside the screen basket
●● Particle deposition during filtration increases pressure loss
●● The screen baskets are removed when the maximum
differential pressure is reached
●● Clogged screen baskets can easily be emptied and
cleaned with the water hose
●● Fixed dirt can be removed with a high-pressure cleaner
ACCESSORIES (OPTIONAL)
●● Davit
●● Drain and vent ball valves
●● Various clogging indicators
3. CLOGGING INDICATORS
EN 7.712.3/01.19
Type
Clogging indicator/
differential pressure
monitoring
2
Image
Description
Visual
PVD x B.x
●●Visual display with green/red field
●●Automatic reset
Electrical
PVD x C.x
●●Electrical signal when trigger point is reached
●●Switch type: normally closed or normally open
●●Automatic reset
Visual-electrical
PVD x D.x /-L...
●●Lamp for visual display
●●Electrical signal (normally closed or normally open)
●●Automatic reset
Differential pressure gauge
DS11
●●2 micro-switches (N/C or N/O)
●●Switch points of the micro-switches can be adjusted from outside
●●Measuring cell made from aluminium or stainless steel
4. FILTER CALCULATION*
CHECKLIST FOR FILTER CALCULATION
STEP 1: REQUIRED OPERATING DATA
●● Observe the Pressure Equipment Directive 2014/68/EU
●● Type of operating medium
●● Viscosity
●● Operating pressure
●● Operating temperature
●● Flow rate
●● Desired filtration rating
●● Type of solid particle to be separated
●● Solid particle content
STEP 2: FILTER SIZING
●● Hydraulic determination of the size on basis of pressure loss curves
●● The initial pressure difference for clean screen baskets should not exceed the following values:
–– Operating pressure ≤ 6 bar: 0.2 bar
–– Operating pressure > 6 to 10 bar: 0.3 bar
–– Operating pressure > 10 bar: 0.3 to 0.5 bar
●● Housing material selected on basis of operating data and operating medium
●● Sealing material selected on basis of operating data and operating medium
●● Selection of size for inlet and outlet flange
●● Different connection sizes can be selected for each size
●● The flow velocity of 4 m/s at the flange inlet should not be exceeded
●● Depending on the solid particle content, screen basket filters can be deliberately oversized or undersized
STEP 3: DETERMINING THE FILTRATION RATING
●● As a basic rule:
as coarse as possible – as fine as necessary!
CIRCUIT DIAGRAM
Shut-off valve
Bypass line
Process inline filter
Inlet
Outlet
Shut-off valve
Shut-off valve
* Please contact our Head Office if you have any queries regarding filter calculation
EN 7.712.3/01.19
Scope of delivery
HYDAC
3
PRESSURE DROP CURVE FOR FILTER HOUSING INCL. SCREEN BASKET INSERT
Flow in l/min
The curves apply for water at 20 °C and other fluids up to a viscosity of 15 mm²/s.
They apply for all filtration ratings.
Exception:
When wedge wires of filtration rating 50 µm are used, 30% of the derived pressure loss must be added.
EN 7.712.3/01.19
Differential pressure in bar
4
5. FILTER CONFIGURATION*
Standard
Optional
Flange connections
●●DIN / DIN EN
●●DN 50 to DN 700
●●ASME
Housing manufacture
AD 2000 technical data sheets / PED
97/23/EC
●●ASME VIII Div. 1
with or without U-stamp
●●EN 13445
Housing materials
●●Stainless steel 1.4301 or similar
(group 304)
●●Stainless steel 1.4571 or similar
(group 316)
●●Carbon steel
Others on request
External corrosion protection
●●2-layer epoxy coating
(not applicable to stainless steel
containers)
●●PUR top coat (colour RAL 7040)
●●RAL/Munsell colours to customer
specification
(for carbon-steel qualities)
Corrosion protection, internal
●●2-component internal epoxy coating
Various multi-layer coatings
(not applicable for stainless steel tanks)
Sealing materials
●●FPM / FKM
●●Asbestos-free gasket
Various sealing materials on request,
depending on the particular medium
Cover plate lifting device
With cover plate lifting device
Differential pressure monitoring
●●Visual
●●Electrical
●●Visual-electrical
●●Differential pressure gauge with
2 micro-switches
●●Assembly and Operating Instructions
●●Acceptance test certificate 3.1
according to DIN EN 10204 for
design, pressure and functional
testing
●●Material inspection certificates
according to EN10204, 3.1 for
pressure-bearing media-contacting
housing parts
●●Approvals: 3rd Parties (TÜV, ABS,
Lloyd’s, etc.)
●●Welding procedure (WPS) / welding
procedure test (PQR/WPQ)
* Other versions and customised special solutions after consultation with our Head Office.
EN 7.712.3/01.19
Documentation
5
6. MODEL CODE
MODEL CODE, PROCESS SCREEN BASKET FILTER PRFS
PRFS – DS – 2500 E1 – A – AF12 – 3000 – 12 – 5 – 3 – 1234567
Filter type
PRFS = screen basket filter, single
Filter material
D
= wire mesh (cleanable), reinforced with perforated plate
DS
= wire mesh (cleanable), reinforced on both sides with perforated plate
S
= wedge wire (cleanable)
L
= perforated plate (cleanable)
Size
130x = DN 50 / 65 / 80 / 100 / 125 / 150
250x = DN 100 / 125 / 150 / 200 / 250
520x = DN 150 / 200 / 250
650x = DN 200 / 250 / 300
1500x = DN 250 / 300 / 350 / 400 / 500
2500x = DN 350 / 400 / 500 / 600 / 700
Final digit x
E1
= housing stainless steel 1.4541 or similar (group 304)
E2
= housing stainless steel 1.4571 or similar (group 316)
4
= housing carbon steel + epoxy internal coating
5
= housing carbon steel without coating
Housing pressure range
A
= 6 bar
B
= 10 bar
C
= 16 bar
D
= 25 bar
E
= 40 bar
Connection code (see table)
F
= flange according to DIN with nominal size afterwards, e.g. F100
AF
= flange according to ASME with nominal size in inches afterwards
Filtration rating in µm
Wire mesh
= 25 / 40 / 60 / 80 / 100 / 150 / 200 / 250 / 500 / 1000
Wedge wire
= 50 / 100 / 200 / 300 / 500 / 1000 / 2000 / 3000
Perforated plate = 3000 / 5000 / 10000
Equipment
0
= without additional equipment
1
= davit
2
= vent and drain ball valve
Type of clogging indicator
0
= no clogging indicator
1
= visual indicator (PVD 2 B.1)
2
= visual and electrical indicator (PVD 2 D.0 /-L...)
4
= visual/analogue clogging indicator made from aluminium with two adjustable contacts (0–4 bar)
5
= visual/analogue clogging indicator made from stainless steel with two adjustable contacts (0–4 bar)
6
= electric differential pressure switch (PVD 2 C.0)
Modification number
3
Supplementary details
Code number for special equipment
EN 7.712.3/01.19
MODEL CODE, SCREEN BASKET INSERT
6
Screen basket design
Screen basket insert with bracket
Size of screen basket
3
4
5
Filter material
D
= wire mesh, reinforced with perforated plate
DS
= wire mesh, reinforced with perforated plate on both sides
S
= wedge wire
L
= perforated plate (from 3000 µm)
Filtration rating in µm
Wire mesh = 25 / 40 / 60 / 80 / 100 / 150 / 200 / 250 / 500 / 1000
Wedge wire = 50 / 100 / 200 / 300 / 500 / 1000 / 2000 / 3000
Perforated plate = 3000 / 5000 / 10000
Sealing material
0
= no seal (> 500 µm)
K
= asbestos-free gasket (only for D / DS / S version)
V
= FPM / FKM
N
= NBR
EP
= EPDM
SI
= silicone
SK – 4 – D – 1000 – 0
7. DIMENSIONS
PRFS 130X - 250X
Removal
height, filter
elements
DN1
H3
Air vent
E1
Clogging
indicator
optional
Drain
Contaminated side
E2
h2
h1
DN2
H2
H1
D1
h3
X
L1
X
b1
Drain
E2
b2
X-X
F2
F4
D4
F3
F1
Size
PRFS 130x…F50
PRFS 130x…F65
PRFS 130x…F80
PRFS 130x…F100
PRFS 130x…F125
PRFS 130x…F150
PRFS 250x…F100
PRFS 250x…F125
PRFS 250x…F150
PRFS 250x…F200
PRFS 250x…F250
DN1
50
65
80
100
125
150
100
125
150
200
250
DN2
50
65
80
100
125
150
100
125
150
200
250
b1
225
225
225
225
225
225
250
250
250
250
250
b2
225
225
225
225
225
225
250
250
250
250
250
h1
795
795
795
825
825
825
1000
1000
1000
1000
1000
h2
520
520
520
520
520
520
600
600
600
600
600
h3
185
185
185
185
155
155
210
210
210
180
180
H1
1085
1085
1085
1085
1110
1110
1285
1285
1285
1335
1335
H2
1000
1000
1000
1000
1025
1025
1200
1200
1200
1250
1250
H3
750
750
750
750
750
750
1000
1000
1000
1000
1000
L1
10
10
10
10
10
10
10
10
10
10
10
D1
219
219
219
219
219
219
273
273
273
273
273
D4
22
22
22
22
22
22
22
22
22
22
22
E1
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
E2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
G1/2
F1
250
250
250
250
250
250
250
250
250
250
250
F2
260
260
260
260
260
260
310
310
310
310
310
F3
320
320
320
320
320
320
320
320
320
320
320
F4
340
340
340
340
340
340
390
390
390
390
390
EN 7.712.3/01.19
Values given in millimetres.
Subject to technical modifications.
7
7. DIMENSIONS
PRFS 520X - 2500X
H3
h4
Davit optional
Davit optional
Removal height,
filter elements
Air vent
E1
DN2
Drain
Contaminated
side
E2
H2
H1
DN1
H4
Clogging
indicator
optional
X
X
L1
h3
h2
h1
D1
b1
Drain
Clean
side
E2
b2
X-X
0°
D4
D3
12
12
0°
EN 7.712.3/01.19
Values given in millimetres.
Subject to technical modifications.
8
Size
PRFS 520x…F150
PRFS 520x…F200
PRFS 520x…F250
PRFS 650x…F200
PRFS 650x…F250
PRFS 650x…F300
PRFS 1500x…F250
PRFS 1500x…F300
PRFS 1500x…F350
PRFS 1500x…F400
PRFS 1500x…F500
PRFS 2500x…F350
PRFS 2500x…F400
PRFS 2500x…F500
PRFS 2500x…F600
PRFS 2500x…F700
DN1
150
200
250
200
250
300
250
300
350
400
500
350
400
500
600
700
DN2
150
200
250
200
250
300
250
300
350
400
500
350
400
500
600
700
b1
325
325
325
400
400
400
500
500
500
500
500
700
700
700
700
700
b2
325
325
325
400
400
400
500
500
500
500
500
700
700
700
700
700
h1
1000
1000
1000
1050
1050
1050
1185
1185
1185
1185
1185
1800
1800
1800
1800
1800
h2
635
635
635
600
600
600
670
670
670
670
630
950
950
950
950
950
h3
270
270
270
220
220
190
300
250
250
220
160
300
300
300
300
250
h4
400
400
400
400
400
400
500
600
600
600
700
400
500
500
600
700
H1
1330
1330
1380
1475
1475
1475
1620
1670
1670
1710
1820
2305
2405
2405
2505
2575
H2
1235
1235
1285
1370
1370
1370
1500
1550
1550
1590
1700
2180
2280
2280
2380
2450
H3
750
750
750
1000
1000
1000
1000
1000
1000
1000
1000
1750
1750
1750
1750
1750
H4
1670
1670
1740
1815
1815
1815
2060
2210
2210
2250
2460
2645
2845
2845
3045
3215
L1
12
12
12
12
12
12
12
12
12
12
12
16
16
16
16
16
D1
406
406
406
508
508
508
711
711
711
711
711
914
914
914
914
914
D3
379
379
379
482
482
482
662
662
662
662
662
858
858
858
858
858
D4
22
22
22
22
22
22
22
22
22
22
22
26
26
26
26
26
E1
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
G1/4
E2
G3/4
G3/4
G3/4
G3/4
G3/4
G3/4
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
7. DIMENSIONS
SCREEN BASKET INSERT
Type S
A
DN2
DN1
A-A
b1
A
b2
Type D / DS / L
A
DN2
DN1
A-A
b1
A
b2
Values given in millimetres.
Subject to technical modifications.
NOTE
DN1
160
187
300
DN2
137
164
260
jmThe information in this brochure relates to the operating conditions and
applications described.
For applications or operating conditions not described, please contact the relevant
technical department.
Subject to technical modifications.
b1
486
566
910
b2
738
913
1619
Process Technology GmbH
Am Wrangelflöz 1
D-66538 Neunkirchen
Tel.: +49 (0)6897 - 509-1241
Fax: +49 (0)6897 - 509-1278
Internet: www.hydac.com
E-mail: prozess-technik@hydac.com
EN 7.712.3/01.19
Size
SK-3
SK-4
SK-5
9