Valve Disc Springs

Hydraulic Valve Disc Springs

In quick-action stop valves, the disc spring stack is under hydraulic preload in the open position. If the failure occurs, the hydraulic pressure drops, releasing the spring stack and closing the valve. Ball bearing centered stacks are often used for this application.

The spring stack also has a self adjusting function. The stack adjusts for the set-loss of gaskets, reducing required maintenance.

Applications include:

• Production facilities
• Instrumentation industries
• Control valves manufacturers
• Power stations