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IAPMO IGC 157-2013E2
- Ball Valves
- standard by International Association of Plumbing and Mechanical Officials, 06/01/2014
- Publisher: IAPMO
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This Standard covers ball valves in sizes NPS-⅛ to NPS-4, with rated working pressures of atleast 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.
The requirements of this Standard are not intended to prevent the use of alternative materialsor methods of construction provided such alternatives meet the intent and requirements of this Standard.
The requirements of this Standard are not intended to prevent the use of alternative materialsor methods of construction provided such alternatives meet the intent and requirements of this Standard.
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