Bronze Safety Valve
The bronze safety valve is a spring-loaded threaded safety valve with bronze cast body, brass seat and disc. A safety valve is a security fitting that automatically opens when system pressure exceeds the set value to relieve excess pressure, and closes again when pressure returns to normal; it protects boilers, water heaters, compressors and pressure vessels against damage and accidents from overpressure.
Available from 1/2″ to 2″, PN25 pressure class. In two adjustment ranges of 2–10.5 bar and 10.5–20 bar, it operates between -20 °C and +185 °C in steam, hot water and pressurised air lines. With the lifting lever, the valve can be manually opened and tested periodically.
Advantages
- Bronze body suitable for steam, air and water
- Adjustable opening pressure from 2–20 bar
- Easy testing with lifting lever
- Compact threaded connection
Application Areas
- Steam boilers and steam lines
- Pressurised air tanks and compressors
- Hot water and heating systems
- Pressure vessels
Technical Specifications
| Nominal sizes | 1/2″ – 2″ |
|---|---|
| Adjustment range | 2 – 10.5 bar / 10.5 – 20 bar |
| Maximum working pressure | PN25 |
| Operating temperature | -20 °C … +185 °C |
| Connection | Threaded inlet and outlet |
Materials
| Body | Bronze cast iron |
|---|---|
| Seat and disc | Brass cast iron |
| Spring | Steel |
| Stem | Brass |
Why ORFA?
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