Relief valve for hydraulic systems

Details Relief valve for hydraulic systems Relief valve for hydraulic systems

F - Mech Eng,Light,Heat,Weapons

16

K

137/60

F16K 15/14 (2006.01) F16K 1/34 (2006.01) F16K 1/46 (2006.01)

Patent

CA 1238550

ABSTRACT A soft rubber seal member is molded in the cavity in the face of the valve core. During the molding process air can escape through the slots or gates in the annular ring in the face of the valve core. When rubber starts coming out the gate, the gates are closed off and the rubber hardens in the gates. The valve is used in combination with a valve housing provided with an entry orifice having a diverging exit section leading to a flat annular surface against which the flat central portion of the soft rubber seal will seat when the valve is closed. This obtains a large seating area and ensures uniform valve opening pressure.

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