About Pressure Gauges
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Low-Pressure Differential Gauges with Color Indicator
A band of green, yellow, and red provides a clear indication of changes in differential pressure. Gauges are commonly used to indicate clogged filters.
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, and Acetylene
- Accuracy: ±5% Full Scale (Not Graded)
Pressure Range, psi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Green Band | Yellow Band | Red Band | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Ht. | Wd. | Dp. | Case Color | Each | |
NPT Female | ||||||||||||
| 1/4 | 0-2 | 2-2.5 | 2.5-3.5 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 0000000 |
Plastic Panel-Mount Pressure-Regulating Valves for Air
- For Use With: Air
- Temperature Range: 40° to 150° F
Regulate pressure in air and inert gas systems from your instrument panel—these valves have threads below the adjustment knob and come with a panel-mount nut. All automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Body is polysulfone, which is lightweight and corrosion resistant.
Inlet | Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Size | Location | Max. Pressure, psi | Pipe Size | Thread Size | Location | End-to-End Lg. | Panel Cutout Dia. | Outlet Pressure Range, psi | Each | |
NPT Female | |||||||||||
Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Seal | |||||||||||
| 1/8 | __ | Side | 150 | 1/8 | __ | Side | 1 9/16" | 9/16" | 0.5 to 3.5 | 00000000 | 000000 |
UNF Female | |||||||||||
Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Seal | |||||||||||
| __ | 10-32 | Side | 150 | __ | 10-32 | Side | 1 1/8" | 9/16" | 0.5 to 3.5 | 00000000 | 00000 |
Plastic Panel-Mount Pressure-Regulating Valves for Water
- For Use With: Water
- Temperature Range: 40° to 150° F
For easy panel mounting in your water system, these valves have threads below the adjustment knob and come with a panel-mount nut. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Body is polysulfone, which is lightweight and corrosion resistant.
Inlet | Outlet | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Location | Max. Pressure, psi | Thread Size | Location | End-to-End Lg. | Panel Cutout Dia. | Outlet Pressure Range, psi | Each | |
UNF Female | |||||||||
Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Seal | |||||||||
| 10-32 | Side | 150 | 10-32 | Side | 1 1/8" | 9/16" | 0.5 to 3.5 | 00000000 | 000000 |
Panel-Mount Back-Pressure-Regulating Valves for Air and Inert Gas
- For Use With: Air, Inert Gas
- Temperature Range: 40° to 150° F
Threads below the adjustment knob and an included panel-mount nut allow you to add these valves to your instrument panel. Often used in systems running on air compressors, they're installed after pressure-sensitive equipment to obstruct flow and maintain a consistent operating pressure. If the system pressure exceeds the set pressure, they exhaust through the outlet. Adjust the set pressure within the range.
Inlet | Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Size | Location | Max. Pressure, psi | Pipe Size | Thread Size | Location | End-to-End Lg. | Panel Cutout Dia. | Outlet Pressure Range, psi | Each | |
NPT Female | |||||||||||
Polysulfone Body—Buna-N Diaphragm and Silicone Seal | |||||||||||
| 1/8 | __ | Side | 100 | 1/8 | __ | Side | 1 1/8" | 9/16" | 0.5 to 3.5 | 00000000 | 000000 |
UNF Female | |||||||||||
Polysulfone Body—Buna-N Diaphragm and Silicone Seal | |||||||||||
| __ | 10-32 | Side | 100 | __ | 10-32 | Side | 1 1/8" | 9/16" | 0.5 to 3.5 | 00000000 | 00000 |