Low differential check valve for sprinkler systems

Details Low differential check valve for sprinkler systems Low differential check valve for sprinkler systems

1998-05-18

1999-12-14

Kashnikow, Andres

Fire extinguishers

Fluid systems

Distributing systems

169 22, A62C 3708, A62C 3710

Patent

active

060004738

ABSTRACT:
A low differential check valve is provided for a fire control system, having particular adaptability in a dry system. The check valve is maintained in its closed position by a latch which is controlled by a plunger. The plunger is activated, and moved to release the latch, upon the sensing of drop in system air pressure by a higher differential mechanism external of the check valve. The check valve may then be reset, with its clapper moved to its closed condition, without requiring internal access of the check valve to release a clapper latch.

REFERENCES:
patent: 3473612 (1969-10-01), Poitras
patent: 3595318 (1971-07-01), Merdinyan
patent: 4854342 (1989-08-01), Polan
patent: 5295503 (1994-03-01), Meyer et al.
patent: 5439028 (1995-08-01), Meyer et al.

Affiliated with

Also associated with

Rating

Low differential check valve for sprinkler systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low differential check valve for sprinkler systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low differential check valve for sprinkler systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-855015