Steam Safety Valves — ASME Section I & VIII Certified
Steam safety valves are the frontline defense protecting boilers, steam lines, and pressure equipment from dangerous overpressure conditions. Aquatrol’s ASME-certified steam valve lineup includes direct-acting designs for simple systems and pilot-operated valves for precise control in larger installations. Get instant sizing recommendations and certified capacity documentation.
Why Aquatrol Steam Valves
Steam systems demand reliable, certified protection. Every Aquatrol steam valve carries full ASME Section I certification for fired boiler application or ASME Section VIII for unfired installations. Our engineers size each valve for your exact operating pressure, flow rate, and inlet/outlet configuration. Complete capacity test reports and third-party certification accompany every valve shipped.
Direct-acting steam valves are simple, cost-effective, and ideal for small-to-medium boiler systems where response speed and mechanical simplicity matter. For larger systems requiring minimal pressure drop and tight control, our pilot-operated designs provide superior performance. Both designs meet or exceed ASME Code requirements and are field-tested across steam generation, process heating, and steam distribution.
Steam valve selection goes beyond pressure rating. Inlet/outlet connections, blowdown requirements, material compatibility with condensate and superheated steam, and vent configuration all affect performance. Our technical team helps you navigate these details, ensuring your system is protected and your valve meets local boiler code inspections.
| Series | Pressure Range | Design Type | Typical Application |
|---|---|---|---|
| 69 | 50–3,000 PSIG | Direct-acting & pilot-op | Fired boilers, steam lines |
| 88 | 50–400 PSIG | Direct-acting | Small package boilers |
| 55 | 50–1,000 PSIG | Pilot-operated | Large steam systems |
| 88/89 | 50–600 PSIG | Direct-acting | Packaged boiler protection |
| 120 | 50–1,000 PSIG | Pilot-operated | Industrial steam generation |
Common Applications
- Fired boiler overpressure protection (ASME Section I)
- Steam line outlet relief and safety limiting
- Unfired pressure vessel steam protection (Section VIII)
- Steam generation equipment at power plants
- Process heating and steam distribution networks
- Superheated steam system protection
- Steam trap discharge and condensate return
Need Help Choosing the Right Valve?
Our valve engineers can help you select the perfect valve for your application.