In various embodiments, the protection system of the current disclosure may be understood by one of skill in the art to be a check valve. However, no particular feature of any specific check valve should be considered limiting on the present disclosure. ...
A check valve assembly for use in backflow preventer apparatus or the like, the check valve assembly being of the poppet valve type. The assembly includes a body member having a flow passage therethro
(SOLD SEPARATELY) ETHAFOAM 220 WHITE OR POLYLAM 1.7 DENSITY WHITE 8 215B24265N 1 5/8" X 3/4" FULL PORT BALL VALVE LEAD FREE BRASS ALLOY ASTM B584 C89833/C87850 7 9 215H14244AN 1 5/8" X 3/4" ASSE DUAL CHECK VALVE LEAD FREE BRASS ALLOY ASTM B584 C89833/C87850 9 5 3/...
18 includes a section of pipe 70, which has a leak 72. The system also includes leak detectors 74, which happen to be positioned nearest to the leak 72. Although the leak detectors 74 are shown as being attached to or in contact with the section of pipe 70, it should be understood ...
18 includes a section of pipe 70, which has a leak 72. The system also includes leak detectors 74, which happen to be positioned nearest to the leak 72. Although the leak detectors 74 are shown as being attached to or in contact with the section of pipe 70, it should be understood ...
4445533 Air check valve assembly for powdered bulk product transport May, 1984 DeFrees 4438958 Clam-shell coupling for joining beaded tubes March, 1984 De Cenzo 4432558 Concrete pumping swivel coupling apparatus with seal February, 1984 Westerlund et al. 4417755 Pipe coupling November, 1983 Gittle...
a relief valve operable upon a change in differential pressure across the upstream check valve, and a vacuum breaker operable upon a drop in pressure in the zone to a predetermined pressure supply above atmospheric pressure. The differential pressure operable relief valve, when opened upon certain ...