Series 25 AUB-Z3 water pressure reducing valves are designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce water consumption. This series is suitable for water supply pressures up to 300 P.S.I. (21 bars) and may be adjusted from 25 to 75 P.S.I. (172 - 517kPa). All parts are quickly and easily serviceable without removing valve from the line. The standard bypass feature permits the flow of water back through the valve into the main when pressures, due to thermal expansion on the outlet side of the valve, exceed the pressure in the main. Dimensions: 5-1/2" (A) x 1-1/4" (B) x 3-7/8" (C). Features: Standard construction includes Z3 sealed spring cage and corrosion-resistant adjusting and cage screws for outdoor/waterworks pit installations; union inlet connection; integral stainless steel strainer; replaceable seat module; bronze body construction; serviceable in line; bypass feature controls thermal expansion pressure; high temperature-resistant reinforced diaphragm for hot water. Meets requirements of ASSE standard 1003: ANSI A112.26.2: CSA standard B356; southern standard plumbing code and listed by IAPMO. Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.
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