Two line pilot valve

Details Two line pilot valve Two line pilot valve

1993-02-08

1994-08-30

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

137606, 251 77, F16K 1700

Patent

active

053418379

ABSTRACT:
A two line pilot valve used to exhaust hydraulic fluid from a control circuit when the operating conditions within which a flowline is intended to operate are outside of predetermined limits. The pilot exhausts fluid within a control circuit to a reservoir which allows a dump valve to dump fluid from an actuator which causes the actuator to close the flowline. The pilot has a first poppet sleeve which contacts an o-ring. When the poppet sleeve and o-ring separate, fluid is allowed to pass from the inlet port of the pilot to the exit port and thereby exhaust the fluid of the control circuit.

REFERENCES:
patent: 2735047 (1956-02-01), Garnel et al.
patent: 3018797 (1962-01-01), Parks
patent: 3298395 (1967-01-01), Lewis
patent: 3332440 (1967-07-01), Brakebill
patent: 4017053 (1977-04-01), Wells et al.
patent: 4091832 (1978-05-01), Snyder et al.
patent: 4320779 (1982-03-01), Peters
patent: 5213133 (1993-05-01), Ellett
Trade Publication: Otis Surface Safety Equipment & Services; 1980; p. 43.
Trade Publicaton: Otis Surface Safety Equipment and Systems; Date Unknown; pp. 38, 39.
Product Bulletin: Baker CAC High or Low Pressure Pilot Model HL-2; 1987; p. 5.

Affiliated with

Also associated with

Rating

Two line pilot valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two line pilot valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two line pilot valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-24602