Valve

Details Valve Valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/127

F16K 27/00 (2006.01) B22D 19/00 (2006.01) F16K 27/02 (2006.01)

Patent

CA 1236375

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.

478323

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