Check valve with poppet damping mechanism

Details Check valve with poppet damping mechanism Check valve with poppet damping mechanism

1992-06-22

1993-08-03

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1506

Patent

active

052320138

ABSTRACT:
An inline check valve for a flow line where the valve element is guided for inline travel forward and rearward of a valve sealing member and is spring biased to a closed sealing condition. One of the guides for the valve element includes a dashpot bore and plunger member to control the rate of travel of the valve element in either direction as well as provided a guiding function. The dashpot is not anchored to the valve body so that the valve can be functional even if the plunger member becomes jammed in the dashpot.

REFERENCES:
patent: 1003413 (1911-09-01), Ballard
patent: 1754975 (1930-04-01), Anderson
patent: 2318962 (1943-05-01), Parker
patent: 2969085 (1961-01-01), Nystrom
patent: 3605802 (1971-09-01), Hertell
patent: 3756273 (1973-09-01), Hengesbach

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