Natural Gas Isolation Ball Valves
Natural Gas Isolation Ball Valves
(OP)
Hi,
I am looking for recommendations for ball valves for isolation of natural gas fuel supply to our power station in the UK. Sizes range from 8inch to 12 inch ASA 300.
Our existing valves are PTFE seated and have suffered from scoring due to dirt in the pipeline. Even the valves downstream of our inlet filters have suffered the same problem. We have stripped the existing valves and replaced the seats but the ball was also found scored in many of them so they still leak.
I have been recommended a ball valve with primary metal seat and secondary soft seat. OEM is Bohmer. Anyone any experience of this OEM or this type of valve seat arrangement?
Thanks.
Al
I am looking for recommendations for ball valves for isolation of natural gas fuel supply to our power station in the UK. Sizes range from 8inch to 12 inch ASA 300.
Our existing valves are PTFE seated and have suffered from scoring due to dirt in the pipeline. Even the valves downstream of our inlet filters have suffered the same problem. We have stripped the existing valves and replaced the seats but the ball was also found scored in many of them so they still leak.
I have been recommended a ball valve with primary metal seat and secondary soft seat. OEM is Bohmer. Anyone any experience of this OEM or this type of valve seat arrangement?
Thanks.
Al





RE: Natural Gas Isolation Ball Valves
We use Bryan Donkin (RMG) Who are in Chesterfield http://www.bdrmg.co.uk
We have used RMG gas trains for some years on agressive and dirty gases (landfill, sewage, mines gas) with no real problems
RE: Natural Gas Isolation Ball Valves
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If we learn from our mistakes I'm getting a great education!
RE: Natural Gas Isolation Ball Valves
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"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/