Leaking air valve, what is it?

[Neal]

2007 Freightliner XC-S chassis,
2008 Winnebago Journey
Attached is a picture of a air valve on one of the air tanks, which is leaking.
It had a red rubber cap with a hole in the center where the white center spot is.
Can you tell me it purpose & what it is called?
Is it likely we could take it apart & clean it, or do we need to just get a new valve?
Thanks

 

[redneckgearhead]

It looks like a pressure relief valve.  It will most likely have to be replaced.

 

[redneckgearhead]

like this one? http://tramecsloan.com/products/air-products/air-accessory-valves/pressure-protection-valve-38-ports-85-psi/

 

[Neal]

like this one? http://tramecsloan.com/products/air-products/air-accessory-valves/pressure-protection-valve-38-ports-85-psi/

Thanks,
That looks exactly like it, but I notice the one in your picture shows 85 psi relief. Since my dash gauges normally run around 120 psi, I presume we would need a higher pressure rated valve? Maybe we can get a part # off it, when we take it off.

 

[redneckgearhead]

Yep, look for a part number or give the company in the link a call and see if they offer a higher rated one.