High pressure butterfly valve with floating disk valve member

Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction

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251308, F16K 2500

Patent

active

045249490

ABSTRACT:
A butterfly valve for high pressures in the range of 150 to 2500 pounds per square inch and high temperatures in which the valve member is cammed by axial movement of the stem to the closed position by a cam in a diametral slot in the valve member and the valve member is rotated between closed and opened positions by rotation of the stem and the cooperation of the same cam and slot. The valve disk may be restricted from motion in the axial direction by a retaining cover for the slot. In a preferred form, the valve stem is located between the valve disk and the retaining cover.

REFERENCES:
patent: 3477690 (1969-11-01), Munota
patent: 3697042 (1972-10-01), Killian
patent: 3854696 (1974-12-01), Keyes

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