Drip irrigation valve

Details Drip irrigation valve Drip irrigation valve

1975-07-16

1976-10-12

Cline, William R.

Valves and valve actuation

With selective flow regulation

137498, F16K 154, F16K 334

Patent

active

039853365

ABSTRACT:
A drip irrigation valve comprising an outer member having a passage, an inner member receivable in the passage, a groove in one of the members, and a seal carried by the other of the members. Water can be admitted to the passage on one side of the seal. The seal cooperates with the groove to define a restricted flow path. The seal is deformable under fluid pressure into the groove to further restrict the flow path thereby making the valve pressure compensating. The groove is tapered or otherwise has regions of different cross sectional areas so that the flow rate through the flow path can be established by the relative axial positions of the inner and outer members.

REFERENCES:
patent: 2899980 (1959-08-01), Loebel et al.
patent: 2980392 (1961-04-01), Greenwood
patent: 3735777 (1973-05-01), Katzer
patent: 3785392 (1974-01-01), Baker
patent: 3815636 (1974-06-01), Menzel
patent: 3825224 (1974-07-01), Remane

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