Fluid handling – Removable valve head and seat unit
Patent
1994-01-13
1995-02-07
Nilson, Robert G.
Fluid handling
Removable valve head and seat unit
1375278, F16K 1503
Patent
active
053868471
ABSTRACT:
A top-entry check valve having a seat, cage, disc and removable bonnet utilizes threaded fasteners to prevent movement of the seat, cage and disc in the downstream direction. An annular shoulder in the valve body prevents movement of the seat, cage and disc in the upstream direction. The disc has a hinge pin which is cradled in hinge pin supports of the cage. Removal of the bonnet allows access to the valve chamber for replacement of the seat, cage, disc or threaded fasteners.
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