MSS SP 142:2012
MSS SP 142:2012 Excess Flow Valves For Fuel Gas Service, Nps 1[1/2] Through 12 Includes Excess Flow Valves of pipe size NPS 1[1/2] through 12, designed for use in fuel gas piping systems.
Table of Contents
PURPOSE1SCOPE
2DEFINITIONSANDABBREVIATIONS
3VALVEDESIGNS,TYPES,ANDSIZES
4SERVICEPRESSURE-TEMPERATURERATINGS
5MATERIALS
6DESIGN
7MARKING
8DESIGNQUALIFICATIONTESTING
9PRODUCTIONTESTINGREQUIREMENTS
ANNEXA-Snap-ActingLoadsTestSetup
ANNEXB-ValveDesigns-FiguresB1throughB5
ANNEXC-ReferencedStandardsandApplicableDates