Pinch valve and method for fabrication

Details Pinch valve and method for fabrication Pinch valve and method for fabrication

1974-03-28

1976-09-28

Schwadron, Martin P.

Valves and valve actuation

Tube compressors

Fluid pressure actuated

291571R, 29450, 29455R, 285 55, 285236, F16K 707, F16L 2106

Patent

active

039827232

ABSTRACT:
A valve body having a circular cylindrical shape may be made of plastic or any other suitable material. A radial hole through the wall of the body has a pressure inlet fitting positioned therein. A flexible tubing is passed through the body co-axial therewith. The tubing is folded back to overlie the ends of the valve body and a valve end tube is positioned to overlie the folded back ends of the flexible tubing. Clamps are utilized to impart inward radial pressure about the circumference of the valve end tube overlying the folded back tubing. The valve end tube is adapted to receive the ends of an inlet and an outlet flow conduit. Pressure of varying magnitude introduced through the pressure inlet fitting serves to meter the fluid flow through the conduit from a full flow to substantially zero flow as the flexible tube distends into the passage through the valve body.

REFERENCES:
patent: 2604246 (1952-07-01), Hood
patent: 3203662 (1965-08-01), Lau
patent: 3402946 (1968-09-01), Dedian

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