Pressure relief valve with lockout position

Details Pressure relief valve with lockout position Pressure relief valve with lockout position

1995-09-08

1997-09-02

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

251 83, 73168, F16K 1518

Patent

active

056621396

ABSTRACT:
A lever actuated pressure relief valve useful at the base of a gridded sprinkler system to perform three functions. The first function is as a pressure relief valve for the sprinkler system, the second function is a closed position for permitting the pressure testing of the sprinkler system, and the third position is an open position to permit the testing of the alarm system of the sprinkler system. The valve has a spring loaded valve stem which is operated by a lever which may be moved under a covered recess to hold the valve in a closed position. It may be moved to a pressure relief system where the valve is held only by a valve spring. It may also be turned to a third position where the valve is opened.

REFERENCES:
patent: 1196862 (1916-09-01), Hayes
patent: 1198956 (1916-09-01), Richardson et al.
patent: 1436650 (1922-11-01), Gilbert
patent: 2634748 (1953-04-01), Morrison
patent: 2641437 (1953-06-01), Jay et al.
patent: 2657704 (1953-11-01), Fausek et al.
patent: 2922436 (1960-01-01), Brash
patent: 4580596 (1986-04-01), Stehling
patent: 4948092 (1990-08-01), Kasper et al.
patent: 5103862 (1992-04-01), Mc Hugh
patent: 5178185 (1993-01-01), Stehiling

Affiliated with

Also associated with

Rating

Pressure relief valve with lockout position does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-300356