Vented port-cap for fire hydrant

Details Vented port-cap for fire hydrant Vented port-cap for fire hydrant

E - Fixed Constructions

03

B

E03B 9/06 (2006.01) A62C 35/68 (2006.01) B65D 51/16 (2006.01) E03B 9/14 (2006.01) F16K 17/04 (2006.01) F16K 24/04 (2006.01)

Patent

CA 2517744

The vented port-cap includes a check-valve, which admits air into the barrel of the hydrant when the pressure inside is lower than the pressure outside. After an inspection of the hydrant, the hydrant can be left to drain by itself, even though the port-cap has been replaced and tightened.

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