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MSS SP 121:2006

MSS SP 121:2006 Qualification Testing Methods For Stem Packing For Rising Stem Steel Valves Defines procedures and guidelines for testing and evaluation of valve stem packing materials and material combinations, it provides qualification by verifying the adequacy of specific packing material

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Table of Contents

1SCOPE
2DEFINITIONS
3TESTFIXTURES
4TESTPRO
5QUALIFICATIONREPORT
FIGURES
ANNEXAReferencedStandardsandApplicableDates

Abstract

Defines procedures and guidelines for testing and evaluation of valve stem packing materials and material combinations, it provides qualification by verifying the adequacy of specific packing material combinations for service within defined limits of size, pressure, temperature, and cyclic duty.

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