Irrigation valve

Details Irrigation valve Irrigation valve

1990-06-13

1992-04-14

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

92 99, 251 45, 251333, 251358, F16K 2500, F16K 31126

Patent

active

051040905

ABSTRACT:
A fluid flow control valve has a resilient diaphragm that engages a valve seat. A line contact is formed between the diaphragm and the valve seat at or closely adjacent the outer diameter of the valve seat. This enhances the ability of the valve to seal under low fluid pressures. The diaphragm is reinforced by a plastic reinforcing member which is formed separately from the diaphragm. The reinforcing member and the diaphragm are inserted together in a press fit, and barbed posts on the reinforcing member hold the two together.

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