F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/73
F16K 3/12 (2006.01) F16K 27/04 (2006.01)
Patent
CA 1057271
SEAT RING NOTCH FOR GATE VALVE GUIDE RAIL Abstract of the Disclosure A sate valve body having annular tapered seat rings retained in counterbores at inlet ends of an axial flow passage with the seating surfaces of the seat rings engageably by a tapered gate which is vertically guided by outwardly extending tongues on the gate slidably retained in grooves between lateral- ly spaced pairs of guide rails on the body, the seat rings having a minor height less than width of the groove between the pairs of guide rails and an outer diameter greater than the lateral spacing between the guide rails, the seat rings being inserted into the associated counterbore by initially rotating the seat rings 90° from its final assembly orientation, radially shifting the seat ring to present the minor height section into one of the guide rail grooves, lowering the seat ring into registry with the flow passage, radially shifting the set ring into alignment with crescent shaped notches formed in the guide rails coaxial with the flow passage, rotating the seat ring to its assembly orienta- tion and axially shifting the ring through the guide rail notches into operative position in the counterbore.
283947
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