Air / oil tank safety valve blowing

Questions & AnswersAir / oil tank safety valve blowing
Saravanan sekar asked 1 year ago

I have Atlas Copco compressor GA55 FF/ 2007  model with integrated dryer which is having problem of safety valve blowing before reach set point (unloading pressure). 

Please advice…

1 Answers
Cas Staff answered 1 year ago


The pressure sensor on this model is AFTER the integrated dryer.

If there is a blockage in the dryer, the compressor pressure will rise until the safety valve blows.

The most common problem here is that the dryer temperature is below 0 and if freezes shut.

Please check the dryer temperature first, what is it?