Historical

IAPMO IGC 157-2013e1

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 ¦ 4F), intended for water supply systems and specifies requirements for materials, physical characteristics, performance testing, and markings. The requirements of this Standard are not intended to prevent the use of alternative materials or methods of construction provided such alternatives meet the intent and requirements of this Standard.

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

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