Tubing pinch valve device

Details Tubing pinch valve device Tubing pinch valve device

1992-08-11

1993-03-30

Fox, John C.

Valves and valve actuation

Tube compressors

Perpendicularly reciprocating tube contacting element

251 4, F16K 706

Patent

active

051977087

ABSTRACT:
A pinch valve is provided for controlling the flow in a flexible wall tube. The valve includes a slotted saddle with female threading to receive a male threaded stem which is actuated within the saddle by a knob integrally connected to the stem. The slotted saddle may be installed onto an existing tube run without requiring disconnection. The stem has a spherical tip which contacts the tube to collapse to decrease the area flow therethrough. The knob and saddle are closely fitted to prevent spreading of the saddle during high thread loads. Calibration is also provided so that a desired flow control can be repeated with accuracy.

REFERENCES:
patent: 3332439 (1967-07-01), Burke
patent: 4575041 (1986-03-01), Hu
patent: 4576593 (1986-03-01), Mommer
patent: 4607659 (1986-08-01), Cole

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