Determining Valve Life
Determining Valve Life
(OP)
Can anyone offer a rule of thumb to estimate the life cycle of steam valves? We are considering substituting A217 WC6 (1-1/4 Cr - 1/2 Mo) for A217 WC9 (2-1/4 Cr - 1/2 Mo) in a high pressure steam line in a combined cycle power plant, as a capital cost savings measure. I'm expecting that the WC6 valve will have a shorter life cycle, and I'm wondering how to estimate the reduction in life.





RE: Determining Valve Life
It is at the edges of the performance envelope where one will shine: If you have mach .7 wet steam, put your money on the C9 body.
RE: Determining Valve Life
Also as told by mr . jimcasey c9 is also considerable one check your budget and your operation specifications
regards