Piston restraining construction of pressure reducing valve

Details Piston restraining construction of pressure reducing valve Piston restraining construction of pressure reducing valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/39.1

F16K 31/383 (2006.01) F16K 47/04 (2006.01) G05D 16/18 (2006.01)

Patent

CA 1288659

ABSTRACT In a pilot type pressure reducing valve in which a main valve body and a main valve seat are operated to be opened and closed by regulating an operating pressure of a piston through a pilot valve which is operable to detect a secondary pressure, wherein in a state where the main valve body is in contact with the main valve seat, a clearance between an upper end surface of the piston and an inner wall surface of a body opposed to the first mentioned surface is set to zero or to close to zero, or set to 0 to 1 mm.

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