Isolation valve affording an absolute tightness towards the exte

Details Isolation valve affording an absolute tightness towards the exte Isolation valve affording an absolute tightness towards the exte

1976-06-09

1978-01-31

Cline, William R.

Valves and valve actuation

Mechanical movement actuator

With pivoted valves

251 85, 251158, 251187, 251298, F16K 3144

Patent

active

040712214

ABSTRACT:
An absolutely tight valve is disclosed, especially suitable for nuclear installations where safety is of paramount importance. The valve provides a tight seal by means of a wheel having a set of projecting spokes, the wheel being placed over the shutter disk and integral therewith. Inclines integral with the valve body cooperate with the spoke ends in a wedging engagement, and a set of cup springs discharge the reactive forces and secure a tight seal.

REFERENCES:
patent: 2535525 (1950-12-01), Wolfe
patent: 2809010 (1957-10-01), Ipsen et al.
patent: 3119594 (1964-01-01), Heggem
patent: 3254660 (1966-06-01), Ray
patent: 3727880 (1973-04-01), Stock

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