Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1984-04-03
1985-05-14
Chambers, A. Michael
Fluid handling
Processes
Cleaning, repairing, or assembling
137877, 251359, 251366, 29460, 291571R, F16K 2700, B22D 1900
Patent
active
045165947
ABSTRACT:
A multi-port valve comprises a valve seat skeleton and a valve body of readily castible material cast about the skeleton. The valve seat skeleton comprises a plurality of wear-resistant members each having a wear-resistant operative surface formed thereon. The wear-resistant members are secured to one another to retain the wear-resistant operative surfaces thereof in a predetermined fixed arrangement. The valve body has a plurality of valve passages formed therein, one for each valve port, at least one of said passages opening to expose each wear-resistant operative surface for engagement by a movable valve component mounted in each valve passage to bear against and move relative to each wear-resistant operative surface in use. The valve is manufactured securing a plurality of wear-resistant members to one another to form a valve seat skeleton on which the wear-resistant operative surfaces are arranged in a predetermined fixed relationship, and casting the valve body about said skeleton.
REFERENCES:
patent: 3271845 (1966-09-01), Breher
patent: 3360008 (1967-12-01), Popale et al.
patent: 3762443 (1973-10-01), Sorenson
Martin John C.
Martin Paul H.
Chambers A. Michael
Diesel Equipment Limited
Fox John C.
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