Craftsman compressor purge valve

[[CJ]]

Hey guys, I have a 33 gal 6hp Craftsman compressor that keeps going through purge valves. They work great for 5-6 times then they start to leak and don't allow the compressor to build psi. It seems the rubber o ring on the valve deteriorates which causes it to leak. Does anyone else have the same problem or know of a permanent fix, I've been through 3 valves already and now need a fourth. Thanks.

 

[bran1har]

are you talking about the saftey pop off valve or the tank drain? If its the saftey valve, then just get a higher psi one.

 

[[CJ]]

Its the tank drain.

 

[Major Ramifications]

Do you mean the tank water drain? Is it a manual drain or automatic?
If it is indeed the original manual drain that you are referring to, then it sounds like you are tightening it up way too much. In other words, "Lighten up, Francis!"

 

[b-body-bob]

Can you change it to use a ball valve instead?

 

[[CJ]]

Do you mean the tank water drain? Is it a manual drain or automatic?
If it is indeed the original manual drain that you are referring to, then it sounds like you are tightening it up way too much. In other words, "Lighten up, Francis!"

Its the valve that drains the left over air from the tank when you're done using it. It is manual, I just tighten it until air stops coming out. As it ages I have to progressively tighten it more.

 

[[CJ]]

Can you change it to use a ball valve instead?

Not sure, I just use the one that's listed as the replacement.

 

[b-body-bob]

This is what I was asking about - you just add bushings until it fits the ******** in the tank http://www.lowes.com/pd_150643-1126-PA300500AV_4294813345_4294937087_?productId=3736409

 

[[CJ]]

This is what I was asking about - you just add bushings until it fits the ******** in the tank http://www.lowes.com/pd_150643-1126-PA300500AV_4294813345_4294937087_?productId=3736409

That looks like a good solution, I'll just have to double check the size of the valve on mine and then give a try. Thanks.

 

[The Cobbler]

most compressor drain valves are 1/4" NPT .