IAPMO/ANSI Z1157
This Standard covers ball valves in sizes NPS-1/8 to NPS-4, with minimum rated working pressures of
860 kPa (125 psi) at 23 ºC (73ºF), intended for use in water supply and distribution systems and specifies
requirements for materials, physical characteristics, performance, testing, and markings.
Status:
Withdrawn
Sector:
Plumbing
Applicability Date:
2015-01-05
Expiry Date:
ORD Number:
IAPMO/ANSI Z1157
Published Date:
Certification Body:
IAPMO Research and Testing, Inc.
Canadian Regulatory Authority:
Canadian Regulatory Council on Plumbing