Purpose : Turbine bypass systems increase the flexibility in operation of steam power plants. They assist in faster start-ups and shutdowns without incurring significant damage to critical and expensive components in the steam circuit due to thermal transients. In some boiler designs, turbine bypass systems are also used for safety function.

Specifications
Max. Set Press : 800kPa
Air Connection : 100-600kPa
Used for shut off, switching, or locking of instrumental air circuit (air relay).

This Series provides high performance, high power diaphragm actuators of multi-spring type that are compact and light. Receiving pneumatic or electric signals, the unit balances the force created when diaphragm is air-pressured through positioner and the force of compressed spring, so that the output shaft is controlled and