F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/045 (2006.01)
Patent
CA 2330002
A water hammering prevention device for completely preventing water hammering is provided, wherein a water hammering prevention device 1 comprises an outer box 2 having concentric flow paths 8 for an inlet 6 and an outlet 7 and a drain port 9 in the midstream section 8b of the flow path 8; an inner tube member 3 having a diaphragm 14 on its periphery dividing the inside of said outer box 2 into an upstream section 8a and an area consisting of a midstream section 8b and a downstream section of the flow path 8, wherein said inner tube member 3 slidingly fits into the upper section 8a; a relief valve 4 provided on the end face of the downstream side opening of said inner tube member 3, wherein said relief valve is capable of moving toward or away from a valve seat 11 located on the periphery of a valve port 10, which is provided between the midstream section 8b and the downstream section 8c, and is energized by a relief valve spring 17 toward the valve opening direction; and a check valve 5 provided inside the inner tube member 3 to prevent fluid from flowing backward from the downstream side, and discharge pressurized fluid generated by water hammering to the outside via drain port 9.
Katou Makoto
Matsuura Nobuyuki
Kane Kougyou Co. Ltd.
Marks & Clerk
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