Historical

IAPMO IGC 157-2013e2

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 use in water supply and distribution 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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