Snap Acting Relay, YT-500 senses supply pressure and changes the direction of the air flow when supply pressure is lower than setting pressure. It also provides "Fail-Position" function when the supply pressure gets lower.

especially when there is damages on pipelines.

- It responses to very small changes and has high accuracy. 
- Versatility can be enhanced by having different material and capacity. 
- 100 mesh screen filters small dust entering.