Check valve

Details Check valve Check valve

1989-08-08

1990-09-25

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1514

Patent

active

049586610

ABSTRACT:
A check valve that allows flow in one direction only and is suitable for controlling corrosive, chemically active or sensitive fluids comprises a body formed of a suitably inert substance defining inlet and outlet flow passages with a central chamber between the flow passages and an elastomeric disc traversing the central chamber. Centrally located disc stops bias the disc against an annular valve seat comprising a ridge surrounding the flow path and the sealing engagement of the disc and the valve seat prevents flow through the valve. An increase of the pressure differential across the disc sufficient to overcome the resilience of the disc causes the disc to deform whereby the perimeter of the disc lifts off the valve seat and allows flow through the valve. Support stops are provided at the inlet end of the central chamber to prevent the disc from being forced into the inlet flow passage upon exposure to a high back pressure differential. Axially extending channels in the wall of the central chamber provide flow passages around the perimeter of the disc allowing full flow through the valve.

REFERENCES:
patent: 3949934 (1976-04-01), Goglio
patent: 4415003 (1983-11-01), Paradis

Affiliated with

Also associated with

Rating

Check 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 Check valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Check valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-324334