Automatic safety device for fluid duct

Details Automatic safety device for fluid duct Automatic safety device for fluid duct

1985-11-22

1987-05-19

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137498, 137463, 137462, 137460, F16K 3112

Patent

active

046659323

ABSTRACT:
An automatically and independently operating safety device for triggering a total or partial closure of a guard or safety valve member when the velocity of a fluid circulating in a conduit attains a predetermined dangerous value. The device senses the static and total pressures of the fluid within the conduit and supplies these pressures which control the movement of a piston and rod wherein the movement of the rod in response to fluid velocities which are dangerously high will initiate the actuation of the safety valve.

REFERENCES:
patent: 1322906 (1919-11-01), Kimball
patent: 2044437 (1936-06-01), MacPherson
patent: 2659383 (1953-11-01), Frager
patent: 2694408 (1954-11-01), McRae

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