snap acting relay

Snap Acting Relay Working Principle
  • Control Valves

Snap Acting Relay Working Principle

Snap-Acting Relay change ports to switch or lock in secondary air source when the main supply pressure fails below a predetermined…

5 years ago
  • Control Valves

Different Types of Control Valve Actuators

Fail Open (Spring-to-Open, Air-to-Close) The actuator is spring-to-open, air-to-close type. Operation is via a normally closed 3 way, 2 position…

4 years ago