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Z191-5X4X24-4NL
This first check repair kit provides all the parts necessary to repair or replace the first check on a 3/4 inch reduced pressure zone assembly backflow preventer
The high pressure range is 75 to 125 psi (518 to 863 kPa) with the standard setting at 90 psi (621 kPa)
Viton® disc
Watts LF174A 070 FS 1 - Part of the LF174A Series Tactile Paving Z191-5X4X24-4NLThis lead free pressure relief valve has a 1 inch NPTF female inlet and outlet and a 70 psi pressure relief setpoint. This valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a lead free copper silicon alloy body , non metallic disc to metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology to detect excessive water
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