Pilot safety valve
Pilot Safety Valve
A Pilot Safety Valve is a pressure relief valve that uses an external pilot mechanism to control the opening and closing of the main valve, ensuring accurate and efficient pressure management in industrial systems.
Types of Pilot Safety Valves
- Pilot-Operated Safety Relief Valve (POSRV) – Opens when system pressure exceeds set limits.
- Modulating Pilot Valve – Gradually releases pressure instead of sudden discharge.
- Snap-Acting Pilot Valve – Fully opens when pressure reaches the set point.
Functions of a Pilot Safety Valve
- Maintains system pressure within safe limits.
- Provides precise control over pressure release.
- Prevents damage to equipment due to overpressure.
- Improves efficiency by reducing unnecessary pressure loss.
Common Applications
- Steam boilers and pressure vessels.
- Petrochemical and gas industries.
- Power plants and water treatment facilities.
- Cryogenic and high-pressure gas storage.
Maintenance & Safety Tips
- Regularly inspect the pilot mechanism for blockages or leaks.
- Ensure proper calibration for accurate pressure settings.
- Keep the valve clean to prevent malfunction.
- Replace worn-out components to maintain efficiency.
