Flow retarding valve for fire hydrants

Details Flow retarding valve for fire hydrants Flow retarding valve for fire hydrants

1986-07-18

1987-03-24

Weakley, Harold W.

Weighing scales

Load holder

Fluid transmission

137467, 137 67, 137613, E03B 902

Patent

active

046517723

ABSTRACT:
A delay valve is attached to a fire hydrant and interposed between the hydrant and the hose and restricts the otherwise high flow and high pressure of the hydrant to a small fraction of the normal flow and pressure until the hose is filled up, at which point the valve opens fully so that the hose and hydrant are fully operational.

REFERENCES:
patent: 797384 (1905-08-01), Thurston
patent: 3476133 (1969-11-01), Stedfeld
patent: 4114653 (1978-09-01), Carlin
patent: 4323219 (1982-04-01), Carlin

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