Automatic Pilot Operated Safety Valve DN15-DN300 1.0-32.0 MPa for Industrial Pressure Control Systems
The pilot operated safety valve is a non-direct load safety valve system consisting of a main valve and pilot valve (secondary valve). The main valve is driven by medium discharged from the pilot valve, operating in pulse form which gives it the alternative name "pulse safety valve."
This automatic valve category provides critical pressure protection for boilers, pressure vessels, and pipelines, ensuring system pressure never exceeds specified safety limits. Available in both micro-opening and full-opening configurations based on disc height requirements.
| Parameter | Specifications |
|---|---|
| Nominal Diameter | DN15 - DN300 |
| Nominal Pressure | 1.0 - 32.0 MPa |
| Strength Test Pressure | 1.5 × nominal pressure (Water) |
| Set Pressure Test | 0.9 × nominal pressure (Air) |
| Working Temperature | ≤300°C |
| Connection Method | Flange connection |
| Applicable Media | Water, air, petroleum gas, and weak corrosive media |
| Component | Materials |
|---|---|
| Body | WCB, CF8, CF8M, CF3, CF3M |
| Bonnet | WCB, CF8, CF8M, CF3, CF3M |
| Disc | WCB, CF8, CF8M, CF3, CF3M |
| Spring | 50CrVA |
| Stem | WCB, CF8, CF8M, CF3, CF3M |
Pilot operated safety valves offer excellent sealing capabilities and maintain consistent performance regardless of back pressure variations. While providing reliable pressure control for industrial applications, these valves feature a more complex dual-valve design compared to direct acting safety valves.
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