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Forwards final deficiency rept re use of incorrect matl for retaining clip in thermal pressure relief devices on certain safety-related gate valves.

Accession Number: ML13308B657

Date Released: Tuesday, December 31, 2013

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• ML13308B656 - Forwards final deficiency rept re use of incorrect matl for retaining clip in thermal pressure relief devices on certain safety-related gate valves. (2 page(s), 12/12/1979)
• ML13308B658 - Final deficiency rept:carbon steel retaining clip was substituted for stainless steel clip in thermal pressure relief valves.Corrosion of clip could cause poppet stem to be expelled.Cause unstated.Pipe plug installed in bore. (3 page(s), 12/11/1979)