Sight check valve

Details Sight check valve Sight check valve

1976-04-08

1977-05-10

Nilson, Robert G.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Inspection means

1375157, 137855, F16K 3700, F16K 1514

Patent

active

040222454

ABSTRACT:
A swing type check valve is connected by a double compression coupling to an irrigation pipe. The compression sleeve over the valve is transparent so that the valve may be sight checked or visually inspected.

REFERENCES:
patent: 2388432 (1945-11-01), Nelson
patent: 2867213 (1959-01-01), Thomas
patent: 3131716 (1964-05-01), Griswold
patent: 3279487 (1966-10-01), Elam

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