Flow control valve for subsurface irrigation system

Details Flow control valve for subsurface irrigation system Flow control valve for subsurface irrigation system

1979-01-02

1980-03-18

Grosz, Alexander

Hydraulic and earth engineering

Drainage or irrigation

Having regulation of flow through channel

239542, 405 43, E02B 1300, B02B 120

Patent

active

041937112

ABSTRACT:
An improved valve for a subsurface irrigation system which valve includes a foot with a pair of oppositely facing laterally opening holes. The foot is sized to extend through a hole in the bottom surface of a pipe of the system and has an upstanding leg of flexible material to be received within the pipe in a flexed condition; the leg has a longitudinal passageway to deliver fluid flowing in the pipe to the holes in the foot; to the leg, a flexible tube extension is fitted to extend within the pipe and which is of a preselected length, to present predetermined resistance to the water flow, so that the water distribution from the system may be generally equalized by selecting the proper length tube extension.

REFERENCES:
patent: 3292378 (1966-12-01), Rosenthal et al.
patent: 3442087 (1969-05-01), Riusech
patent: 4147307 (1979-04-01), Christy et al.

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