Dear Mr./Mrs./Miss.
The air cooler in HYDROCRACKER unit (oil refining plant)have the below specifications,Please guide me about the welding procedure ,filler metal and any requirements in conform to service.
design pressure:55.3 bar/f.v
design temperature:171 celsius
fluid circulated: H2+HCBN...
I am looking for procedure for repair the inside corroded surface of POSITIVE CHOKE VALVE that the material is indicated CA-15 ( martensitice stainless steel casting alloy ) . the size of valve is 4 1/16" and suitable for SOUR GAS is essential requirement.
Refer to my searching the ER410 or...