The YT-520 Series is a snap-acting relay that senses supply pressure and changes the direction of the supply air flow when the supply pressure level is lower than the set pressure level.
By using a snap-acting relay, the valve system can “fail freeze” as the supply pressure fails.
Features
Switches pressure flows when abnormal pressure detected
Stem can be extended and connected
Able to lock actuator in its position
Responses to very small changes to supply pressure with high accuracy
Enhanced versatility by having different material for body and options
Internal 100-mesh screen filters small dust entering into the product