Damping device for check valves

Details Damping device for check valves Damping device for check valves

1980-08-13

1982-05-18

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

137527, F16K 1503, F16K 4700

Patent

active

043300065

ABSTRACT:
Damping device for a check valve with a closure member movable by fluid flow, including means defining a chamber, a piston mounted and longitudinally movable in the chamber, a plunger connected to and movable with the piston, the plunger being engageable with a stop just before the closure member reaches a valve closing position thereof and thereby moving the piston in the chamber, the chamber being closed on all sides thereof and filled with fluid, the chamber having a cross section increasing in direction toward the closure member, and spring means for exerting a force on the plunger and the piston in direction towards the closure member.

REFERENCES:
patent: 2717001 (1955-09-01), Perrault
patent: 3098502 (1963-07-01), Deve

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