Test Pressure Gauge

3D Test Pressure Gauge series gives you a choice of two different degrees of accuracy to match your application. All 3D Test Pressure Gauge accuracy figures are real: they include all friction, error, hysteresis, and linearity variations. And 3D Test Pressure Gauge maintain their rated accuracy over the entire life of the gauge. With no gears or wear poinnts there is no need for recalibration.

Every dial is clearly marked for fast, accurate reading with calibrations covering a 270° arc. Parallax is corrected on the Test Pressure Gauge by a neutral glare-free face and a corrosion resistant stainless steel dial, incorporating a polished mirror band.

Our Test Pressure Gauges are easy to zero with a front mounted zero adjust screw, virtually the only adjustment necessary over the life of the gauge.

3D Test Pressure Gauge is ideal for field calibrations where rough servcie conditions cause the need for frequent recalibrations in lesser gauge technologies. 3D Test Pressure Gauge is available in; 2-1/2", 4-1/2", 6", 8-1/2", and 12" diameters. Accuracies available are 0.5% and 0.25% of span.

A variety of case configurations and colors is provided so that you can match the exact pressure calibration instrument required for your service.

Test Pressure Gauge Specifications

Pressure Ranges: 0-30 psig to 0-20,000 psig equivalent ISO and Metric Scales

Compound Ranges: 30" Hg/0-30 psig to 30" Hg/0-300 psig

Receiver Gauges: 3-15 psig or 3-27 psig linear or square root scales

Proof Pressure without calibration shift: 150% of maximum rated pressure

Burst Pressure: 500% of Scale Pressure

Operating Media: Any media suitable for contact with stainless steel/inconel.

Calibration: Vertical as standard.

Accuracy: Process - +/- 0.5% of span at mid-range, +/- 1.0% overall

Test- +/- 0.25% or +/- 0.50% of span. No tapping required, includes friction, hysteresis, and linearity variations.

Response Time: Approximately 100ms from 0 to full scale (gas service)

Ambient Temperature: -65 deg. F to +190 deg. F (-54 deg.C to +88 deg.C)

Service Media Temperature: -65 deg.F to 400 deg.G (-54 deg.C to +204 deg C) Higher temperatures allowable depending on installation.

Life: 250,000 cycles minimum to 1,000.000. 80% of full scale.

Dial Sizes:
Process - 2 1/2" (64mm)
41/2" (114mm) 6" (152mm)
Test 0 21/2" (64mm) 41/2" (114mm) 6" (152mm) 81/2" (216mm) 12" (305mm)

Repeatability: +/-0.25% full scale

Sensitivity: +/- 0.025% full scale

Materials:
Case- ABS Plastic (std) SS (opt)
Dial, Capillary tube, fittings, screws, and rivets - Stainless Steel
Sensing Element - Inconel X-750

Use Table below to get the Model Number

Sample Model Number:
25544-31B13

Part Number	Description
25	Dial Gauge		Type
1	Compound 30in Hg - 30 to 300 psig		Basic Classification (Check One)
2	Vacuum
5	Pressure

			Accuracy (Check One)
4	.25% of span
5	.5% of span
2	2-1/2 in		Scale Size (Check One)
4	4-1/2 in
5	6 in
6	8-1/2 in
7	12 in
-	Dash
48	30-0-30 psig (Compound Only)		Scale Code & Range PSIG (ISO Metric) (Check One)
21	0-30 psig (0-200 kPa)
22	0-60 psig (0-400 kPa)
23	0-100 psig (0-700 kPa)
24	0-150 psig (0-1,000 kPa)
45	0-160 psig
25	0-200 psig (0-1,400 kPa)
26	0-300 psig (0-2,000 kPa)
27	0-500 psig (0-3,500 kPa)
28	0-600 psig (0-4,000 kpa)
29	0-1,000 psig (0-7,000 kPa)
31	0-1,500 psig (0-10 MPa)
32	0-2,000 psig (0-14 MPa)
33	0-3,000 psig (0-20 MPa)
34	0-4,000 psig (0-28 MPa)
35	0-5,000 psig (0-35 MPa)
36	0-6,000 psig (0-40 MPa)
37	0-8,000 psig (0-56 MPa)
38	0-10,000 psig (0-70 MPa)
39	0-15,000 psig (0-100 MPa)
41	0-20,000 psig (0-140 MPa)
B	1/4 NPT Male		Connection Size & Type (Check One)
C	1/2 NPT Male (For ranges below 6000 PSI)
11	Black	Flange: Front Fitting: Bottom	Enclosure Flange & Fitting Location & Case Color (Check One)
12	Green
13	Red
14	Yellow
15	Stainless 2.5 & 4.5 Only
21	Black	Flange: Front Fitting: Back
22	Green
23	Red
24	Yellow
25	Stainless 2.5 & 4.5 Only
31	Black	Flange: Back Fitting: Bottom
32	Green
33	Red
34	Yellow
35	Stainless 2.5 & 4.5 Only
41	Black	Flange: Back Fitting: Back
42	Green
43	Red
44	Yellow
45	Stainless 2.5 & 4.5 Only
51	Black	Flange: None Fitting: Bottom
52	Green
53	Red
54	Yellow
55	Stainless 2.5 & 4.5 Only
61	Black	Flange: None Fitting: Back
62	Green
63	Red
64	Yellow
65	Stainless 2.5 & 4.5 Only

ISO and Metric Scale
Type	Suffix
kilopascals/ megapascals*	ISO
BAR	ISB
kg/cm(2)	ISK
Note: for dual scale add 'D' to suffix ie; psi & bar = ISBD. PSI are typically on outer arc.

Test Pressure Gauge Order Information

To obtain your part number for the type of gauge you need, select one variation under each column heading. Place a check mark immediately below the part number for each variation. When complete, write the part numbers above each check. The resulting number is your part number. (Note: The first two numbers are always 25 as indicated.) Example: 25544-31B13.

RS380-1 Filter. The RS380-1 Filter is standard equipment on all 3D gauges to prevent particles from entering the bourdon coil. Made of 300 series stainless steel for corrosion resistance. RS380-1 is easily removed for cleaning. Filters are available separately.

Custom dial faces. 3D's design and engineering department can provide special dials to customers' specifications upon request. Customized faces may show force or weight, extended ranges, special colors, corporate logo-types, or legends.

Max Pressure Pointer. A "Dead Hand" pointer is moved by the gauge indicating pointer on increasing pressure. and the "Dead Hand" pointer remains at maximum pressure when the gauge pressure returns to normal or zero. The assembly is mounted on the gauge crystal and has an external reset knob to reposition the pointer. This pointer is available on the 4 1/2, 6, 8-1/2 and 12 inch gauges.

Internal Isolator. The 3D Internal Isolator GP400 prevents the passage of any contaminating product into the bourdon coil system, eliminating plugging. The unit is a sleeve-type elastomer which is threaded into the fitting of 3D gauges after liquid filling of the coil. The GP400 can be operated to full gauge pressure from - 40 degrees to -250 degrees F (-40 degrees C to -120 degrees C) without deterioration of gauge accuracy, except on pressure ranges of 100 psi and under. The GP400 is not suitable for gas service.

Resources

General 3D Gauge Catalogue