Trying to do a root cause analysis of a pre 1974 2inch WKM gate valve. Dont really have enough information to help get this completed satfisafcatory.
My question is does any one have any experience with stem failure of this valve and causes.
I have found through research that 2inch valves are...
is it better to buy a nitric acid plant economiser made of carbon steel than one made of zirconium.?
if the temperatures in the economiser are about 120C