Swing check valve with secured cage

Details Swing check valve with secured cage Swing check valve with secured cage

1989-11-01

1991-03-19

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375157, F16K 1503

Patent

active

050002236

ABSTRACT:
A swing check valve wherein the valve seat, cage and disc are in the form of a cartridge having an overall length substantially equal to the length of the valve body. The valve is for use between flanges where the flanges do not provide support to prevent movement of the cartridge upstream or downstream. The cartridge is held in place by cooperating shoulders and screws engaging the cartridge and the valve body.

REFERENCES:
patent: 3933173 (1976-01-01), Kajita
patent: 3937441 (1976-02-01), Baumann
patent: 4201241 (1980-05-01), Schertler
patent: 4313458 (1982-02-01), Burns
patent: 4586534 (1986-05-01), McNeely
patent: 4605041 (1986-08-01), Teumer
Publication, Gray Tool Company, Graycheck, no date given.

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