I have a client that made a mistake when ordering valves. They need to order high temperature valves and instead ordered standard ones. The maximum temperature the bolts would see in a fire is 1875 deg. F. Inconel 718 would be a good choice up to 1600 deg F but I am concerned that from 1600 - 1875 deg F the bolts would anneal and fail, even if the time at temperature is a very short time (say 2 - 3 minutes). Is there any other material that may work for this application?Has anyone ever ran across a problem like this before and found a suitable solution?After talking with the client they want to make sure the valves do not leak during a fire. If there is a leakage then the contents of the line will fuel the fire more and make containment much more difficult.

MORE NEWS