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Matco-Norca has upgraded its lead free brass 759 Press Ball Valve (759PLF) to feature leak-prior-to-press technology. This design incorporates a special EPDM O-ring that allows water or air past the sealing element of any un-pressed connection. Press-fit systems offer the advantage of flame-free installations; the press-fit feature is built into the design of the ball valve’s O-ring and provides a path for liquids from inside the pipe to weep past the sealing O-ring of an un-pressed connection. Manufactured in ISO 9002 approved factories and available in 1/2-inch up to 4-inch sizes, Matco-Norca’s upgraded 759PLF Ball Valves come with one O-ring and are compliant with UPC, AB1953, NSF-61 and NSF-372 standards.