Low throughput water system flow control members and methods of

Details Low throughput water system flow control members and methods of Low throughput water system flow control members and methods of

1997-01-15

1998-09-29

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Processes

239542, A01G 2516

Patent

active

058136037

ABSTRACT:
Fluid flow control devices such as drip irrigation or micro-sprinkler valves and emitter unit membranes are constructed of an elastomeric composition selected from the group consisting of (1) a halogenated butyl elastomer, and (2) a diene nitrile elastomer and mixtures of (1) and (2). An ethylene propylene diene elastomer EDPM can also be incorporated into the composition. Use of the compositions inhibits valve and membrane swelling that would otherwise occur when such valves and membranes are contacted by water sources comprising organic and inorganic impurities.

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