Gauges
Class1 is a leading manufacturer of gauges that exceed the rigorous
demands of fire service professionals. We offer standard liquid filled,
Backlit and Duplex gauges in a wide variety of sizes and pressure ranges.
ORDERING INFORMATION
Liquid Filled Gauge Ordering Information
Our goal is to assist you in ordering the correct gauge the first time and every time.
By following the guidelines below we can quickly and easily find the part number required.
1. Determine the size requirement according to the diagrams below.
2. Determine the pressure range and unit of measure required.
3. Determine the dial color — standard white (some gauges optional black).
4. Do you need a liquid filled or liquid filled illuminated gauge?
If you have additional questions, call Customer Service at 800-533-3569.
2.5” Gauge
OD 3.2”
Dial 2.5”
4.5” Gauge
OD 5.25”
Dial 4.5”
3.5” Gauge
OD 4.125”
Dial 3.5”
2
FIRE SERVICE GAUGES
2.5” - 3.5” - 4.5” - 6”
Class1 Interlube filled pressure gauges with our patented Sub-Z II freeze-proof isolator are a must for all fire
apparatus. Because the stem and bourdon tube are filled and sealed with a low temperature liquid, water
cannot enter the tube. This prevents freezing and subsequent damage to the gauge.
The fill fluid in the case dampens pulsations and vibration while eliminating the need for snubber valves. In
addition, Interlube fill eliminates fogged lenses, rust and corrosion.
The demands of fire fighting professionals for accurate and reliable instrument readings have been met by
thousands of Class1 freeze proof pressure gauges that are now in service and meet or exceed NFPA and
ANSI standards.
Case
• 2.5”, 3.5”, and 4.5” gauge - Zytel nylon
• 6” gauge - aluminum
Dial
• White with black markings as standard
• Black dial with white markings also available
Bezel
• Standard chrome plated or optional colors
(2.5” only)
Temperature Compensation
• Internal breathing diaphragm
Socket
• Brass, equipped with Sub-Z freeze proof protection
Accuracy
• 2.5” gauge +/- 2% mid-scale; +/-3% balance,
ANSI B40.1, Grade B
• 3.5”, 4.5” and 6” gauge +/-1% of full scale,
ANSI B40.1, Grade 1A
Bourdon Tube
• Phosphor bronze, filled with low temperature
liquid
Mounting
• Panel mount with adhesive gasket and spin-on ring
• Three front screws for 6” gauges
Connections
• 1/4” NPT brass male connection
Pressure Ranges Available
• Dual scale with KP or Bar available in limited
ranges
• (See gauge list for standard pressure ranges.)
Lens
• High impact resistant acrylic
Case Fill Fluid
• Interlube
DOT fitting can be installed at Class1.
3
PRESSURE GAUGES
Lighted Pressure Gauges
Class1’s series of liquid filled backlit pressure gauges use LEDs
to light the liquid-filled gauges.
The gauge case has been upgraded to isolate the LED light from
the gauge. LED lights are independent of the gauge allowing
for interchangeability color selection and easy field replacement.
Features
• Brightly lit by LED’s for heightened visibility
• Available in red, green, blue, yellow and white
for 2.5”, 3.5”, 4.5” and 6” gauges
• Vivid illumination increases visibility under extreme
fire incident conditions
• Available in both 12 and 24 Volt
• Single and dual LED assemblies available and sold separately
Contact Customer Service at 800-533-3569 for part numbers.
LED Wire Assembly
Part #
Description
LED Color
Power Wire Color
-001
12V Red
Red
Red
-002
12V Green
Green
Green
-003
12V Yellow
Yellow
Yellow
-004
12V Blue
Blue
Blue
-005
12V White
White
White
-021
24V Red
Red
Red
-022
24V Green
Green
Green
-023
24V Yellow
Yellow
Yellow
-024
24V Blue
Blue
Blue
-025
24V White
White
White
NOTES
1. Connect power (12V or 24V) to colored wire
2. Connect ground to black wire
Single LED
Lighted Gauge
122185-XXX
4
Dual LED
Lighted Gauge
122186-XXX
3. For 2-1/2”, 3-1/2” and 4-1/2” gauges, insert either
(2) of PN 122185-XXX or (1) of PN 122186-XXX. For 6” gauge,
insert either (4) of PN 122185-XXX or (2) of PN 122186-XXX.
4. Insert assembly into lens at least past the last ribbed section.
DUPLEX GAUGES & BEZELS
4.5” Duplex Gauges
Duplex gauges should be used when two different pressures need to be monitored on a single gauge such
as balanced pressure foam systems or Class “A” foam systems with both air and water pressures.
Specifications
• Case Material: Zytel Nylon
• Bezel material: Chrome
• Dual Sockets: Bronze equipped with Sub-Z II freeze protection
• Bourdon Tubes: Filled with low temperature material
• Connections: (2) 1/4” male NPT - lower back, side-by-side
• Lens: Acrylic
• Case Fill Fluid: Interlube
• Dial: White with black markings
• Accuracy: + 2% of scale
• Pointers: 1 red and 1 black
• Temperature Compensation: Internal breathing diaphragm
• Pressure Ranges Available: 0-400, 0-600
2.5” Colored Bezels
Class1 colored bezels are made of stainless steel with DuPont AlestaTM
powder coating. This coating provides superior durability and corrosion
protection. Colored bezels are available in 12 colors on our premium 2.5”
gauges. Not installed, ordered separately.
Available colors:
• Black (BLK)
•Gray (GRY)
• Orange (ORG) • Silver (SIL)
• Blue (BLU)
•Green (GRN)
• Purple (PUR)
• White (WHT)
• Brown (BRN)
•Lime (LIM)
• Red (RED)
• Yellow (YLW)
115820-XXX
Chrome Plated Bezels
Class1 color coded chrome bezels are available for the 2.5” and 3.5”
Premium Liquid Filled Gauges, Lighted Gauges and Digital Displays.
2.5” - 105548
3.5” - 105546
Contact Customer Service at 800-533-3569 for corner tag colors
and part numbers.
5
QC TEST KIT
QC Test Kit
Check your panel gauge accuracy with our handy QC Test Kit. The kit comes complete with everything you
need to easily perform the test right in the station or during your annual pump test.
The kit includes Class1 pressure and vacuum gauges, flexible high pressure hoses with fittings and a carrying
case. To certify accuracy, the gauges are shipped with a certificate of calibration at 1%, 300# gauge with 2#
increments (recommended for NFPA pump tests).
Specifications
• Gauges: One 0-30” vacuum and one 0-300 PSI gauge
(in 2 PSI increments) 0-400 gauge also available • Dial: 3.5” white with black markings
• Accuracy: +/- 1% of full scale, ANSI B40.1, Grade 1A
• Case Fill Fluid: Interlube
• Mounting Plate: Black anodized aluminum 0.125” thick
• Hoses: Two - 36” each
• Hose connections: 1/4” NPT male
• Carrying Case: ABS plastic, 15.5” x 11” x 4.5”
PART NUMBER
DESCRIPTION
91476195
QC Test Kit - 300 PSI
92471673
QC Test Kit - 400 PSI
92471674
QC Test Kit - 600PSI
Gauge Body Design
Class1’s innovative body design for fire service gauges will make
installation a simple operation. This case utilizes a unique spin-on ring to
clamp the gauge into the pump panel.
Our body design will also work if you need to replace an existing Class1
gauge. The hole cut outs are the standard Class1 sizes.
6” Pressure Gauge
6
Mechanical Pressure Gauges
2.5” GAUGE
3.5” GAUGE
4.5” GAUGE
A
3.14” (79.8 mm)
4.14” (105.2 mm)
5.19” (131.8 mm)
B
2.63” (66.8 mm)
3.65” (92.7 mm)
4.71” (119.6 mm)
C
2.69” (68.3 mm)
3.71” (94.2 mm)
4.77” (121.2 mm)
D
3.07” (78.0 mm)
4.32” (109.7 mm)
5.55” (1410 mm)
E
1.75” (44.5 mm)
3.00 (79.2 mm)
4.00 (101.6 mm)
Class1 Liquid Filled Standard Gauges
SIZE
60MM
RANGE
0-400-PSI
DIAL
WHITE
GAUGE
91220001
WITH
FITTING
WITH
LIGHT
WITH
FITTING
& LIGHT
“-F”
“-L”
“-F-L”
X
N/A
N/A
2.5"
0-300-PSI
WHITE
91525875
X
X
X
2.5"
0-400-PSI
WHITE
91523971
X
X
X
2.5"
0-400-PSI-WOB
BLACK
91523970
X
N/A
N/A
2.5"
30-0-400-PSI
WHITE
91523932
X
X
X
2.5"
30-0-400-PSI-WOB
BLACK
91523936
X
N/A
N/A
2.5"
0-600-PSI
WHITE
91523934
X
X
X
2.5"
0-600-PSI-WOB
BLACK
91523938
X
N/A
N/A
2.5"
30-0-600-PSI
WHITE
91523933
X
X
X
2.5"
30-0-600-PSI-WOB
BLACK
91523937
X
N/A
N/A
2.5"
0-400-PSI/KPA
WHITE
91525862
X
X
X
2.5"
30-0-400-PSI/KPA
WHITE
91529546
X
X
X
2.5"
0-600-PSI/KPA
WHITE
91525931
X
X
X
2.5"
30-0-600-PSI/KPA
WHITE
91525974
X
X
X
Continuted on next page.
7
Class1 Liquid Filled Standard Gauges (cont.)
SIZE
RANGE
DIAL
GAUGE
3.5"
0-300-PSI
WHITE
91556688
WITH
FITTING
WITH
LIGHT
WITH
FITTING
& LIGHT
“-F”
“-L”
“-F-L”
X
X
X
3.5"
0-400-PSI
WHITE
91553951
X
X
X
3.5"
0-400-PSI-WOB
BLACK
91553947
X
N/A
N/A
3.5"
30-0-400-PSI
WHITE
91553940
X
X
X
3.5"
30-0-400-PSI-WOB
BLACK
91553948
X
N/A
N/A
3.5"
0-600-PSI
WHITE
91553943
X
X
X
3.5"
0-600-PSI-WOB
BLACK
91553950
X
N/A
N/A
3.5"
30-0-600-PSI
WHITE
91553941
X
X
X
3.5"
30-0-600-PSI-WOB
BLACK
91553945
X
N/A
N/A
3.5"
0-400-PSI/KPA
WHITE
91555863
X
X
X
3.5"
30-0-400-PSI/KPA
WHITE
92550727
X
X
X
3.5"
0-600-PSI/KPA
WHITE
93550149
X
X
X
3.5"
30-0-600-PSI/KPA
WHITE
91555978
X
X
X
4.5"
0-400-PSI
WHITE
91583962
X
X
X
4.5"
0-400-PSI-WOB
BLACK
91583959
X
N/A
N/A
4.5"
30-0-400-PSI
WHITE
91583952
X
X
X
4.5"
30-0-400-PSI-WOB
BLACK
91583960
X
N/A
N/A
4.5"
0-600-PSI
WHITE
91583954
X
X
X
4.5"
0-600-PSI-WOB
BLACK
91583961
X
N/A
N/A
4.5"
30-0-600-PSI
WHITE
91583953
X
X
X
4.5"
30-0-600-PSI-WOB
BLACK
91583956
X
N/A
N/A
4.5"
0-400-PSI/KPA
WHITE
91582326
X
X
X
4.5"
30-0-400-PSI/KPA
WHITE
91586215
X
X
X
4.5"
30-0-600-PSI/KPA
WHITE
91585860
X
X
X
6.0"
30-0-400-PSI
WHITE
91664721
X
X
X
6.0"
30-0-400-PSI-WOB
BLACK
93660049
X
N/A
N/A
6.0"
30-0-600-PSI
WHITE
91663964
X
X
X
6.0"
30-0-600-PSI-WOB
BLACK
91663966
X
N/A
N/A
DPX
0-400-PSI
WHITE
32751484
X
X
X
DPX
0-400-PSI/KPA
WHITE
32751487
X
X
X
DPX
0-600-PSI
WHITE
32751485
X
X
X
DPX
0-600-PSI/KPA
WHITE
32751422
X
X
X
Hale Products, Inc.
607 NW 27th Ave, Ocala, FL 34475
Tel: 800.533.3569 Fax: 800.520.3473