Air & Gas Safety Valves — Compressor & Pneumatic Protection
Compressed air and gas systems require specialized safety protection to prevent dangerous overpressure and uncontrolled discharge. Aquatrol’s air and gas relief valves deliver reliable, rapid response protection for compressor outlet protection, pneumatic lines, gas cylinders, and sealed equipment. All valves are ASME-certified with full capacity documentation.
Why Aquatrol Air & Gas Valves
Air and gas systems experience rapid pressure spikes, vibration, and temperature swings that demand robust, fast-responding relief. Aquatrol’s direct-acting and pilot-operated designs are specifically engineered for gas media, with tight set-pressure tolerances and rapid lift response. Each valve undergoes capacity testing to verify flow rating at your exact operating pressure.
Compressor outlet protection is critical—sustained overpressure degrades gaskets, fatigues vessels, and creates safety hazards. Our valves are sized specifically for compressor displacement, outlet temperature, and downstream pressure to ensure proper relief without starving your pneumatic system. We help you avoid undersizing (inadequate protection) and oversizing (system deadheading).
From low-pressure pneumatic tools to high-pressure industrial gas systems, from dry air to moisture-laden compressor discharge, our series handle diverse conditions. Stainless steel options protect systems in corrosive environments, while standard carbon steel provides economy for general shop air. All designs include adjustable set pressure and straightforward field maintenance.
| Series | Pressure Range | Media | Connection |
|---|---|---|---|
| 55 | 30–1,000 PSIG | Air, nitrogen, gas | NPT, SAE |
| 140 | 20–800 PSIG | Compressed air | NPT, ISO |
| 140 | 20–1,000 PSIG | Industrial gas | NPT, SAE |
| 88/89 | 50–600 PSIG | Gas, air | NPT |
| 120 | 50–1,000 PSIG | High-pressure gas | ISO, SAE |
Common Applications
- Rotary and reciprocating compressor outlet relief
- Pneumatic line pressure limiting and system protection
- Gas cylinder safety limiting and overpressure relief
- Industrial nitrogen and process gas system protection
- HVAC compressor and refrigeration charge protection
- Portable compressor and air tool system relief
- Pilot supply pressure regulation in control systems
Need Help Choosing the Right Valve?
Our valve engineers can help you select the perfect valve for your application.
