Cast Steel and Stainless Steel Automatic Pilot Operated Safety Valve with DN15-DN300 Port Size for Up to 300°C Working Temperature
Cast Steel And Stainless Steel Automatic Pilot Operated Safety Valve
Pilot operated safety valve is a type of non direct load safety valve composed of a main valve and a pilot valve (also known as a "secondary valve"). The main valve is driven by the medium discharged from the pilot valve. Due to the pulse form of pressure in the system, it is also known as a "pulse safety valve".
This automatic valve category is mainly used on boilers, pressure vessels, and pipelines to control pressure not exceeding specified values, providing important protection for personal safety and equipment operation.
| Parameter | Specification |
|---|---|
| Nominal diameter DN(mm) | DN15-DN300 |
| Nominal pressure PN(MPa) | 1.0-32.0 |
| Strength test (Water) | 1.5 times of pressure nominal |
| Set pressure test (Air) | 0.9 times of pressure nominal |
| Main components - Body | WCB, CF8, CF8M, CF3, CF3M |
| Main components - Bonnet | WCB, CF8, CF8M, CF3, CF3M |
| Main components - Disc | WCB, CF8, CF8M, CF3, CF3M |
| Main components - Spring | 50CrVA |
| Main components - Stem | WCB, CF8, CF8M, CF3, CF3M |
| Applicable medium | Water, air, petroleum gas and weak corrosive medium |
| Working temperature | ≤300℃ |
| Connection method | Flange connection |
- Ideal for high-pressure and large-diameter applications
- Excellent sealing performance
- Minimal back pressure influence on operation
- Available in micro opening and full opening configurations
Note: While offering superior sealing, pilot operated safety valves have more complex structures and may not respond as quickly as direct acting safety valves.
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