About PILOT OPERATED SAFETY VALVE SVP601
A Pilot operated safety valve is controlling the opening and closing of the main valve. The pilot valve is a direct loaded safety valve that responds to be system pressure and transmits it to the dome of the main valve. The main valve is held closed by the pressure above its disc or piston and opens when the pilot valve releases the pressure.
CATEGORIES OF SAFETY VALVES
Spring loaded safety valves
Spring-loaded safety valves are one of the main types of safety valves in which the closing force or spring force is applied by a spiral spring. How does a spring-loaded safety valve work? Safety valves are designed to open and release excess pressure from vessels or equipment and then close again.
Pilot operated safety valves
Pilot-operated valves are pressure relief valves that control the main valve's inlet and outlet port. They are similar to spring-loaded valves but are the best alternative solution for reaching the highest pressure and highest capacity. These valves offer excellent performance for overpressure protection
Dead Weight safety valves
Deadweight Safety valve consists of a valve seat where the pressure in the boiler or pressure vessel when it exceeds the normal working pressure lifts the valve seat with its weight. The excess pressure fluid therefore escapes through the pipe to the atmosphere, until the pressure reaches its normal value.
Dead-Weight safety Valves