Historical

IAPMO IGC 157-2013

Ball Valves

This Standard covers ball valves in sizes NPS-1/8 to NPS-4, with rated working pressures of at least 860 kPa (125 psi) at 23 2 ║C (73 4║F), intended for water supply systems and specifies requirements for materials, physical characteristics, performance testing, and markings.

CONTENT PROVIDER
International Association of Plumbing and Mechanical Officials [iapmo]

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