Dual disk incinerator valve

Details Dual disk incinerator valve Dual disk incinerator valve

1992-06-25

1993-06-08

Chambers, A. Michael

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

13761411, F16K 100

Patent

active

052170411

ABSTRACT:
A flow control valve comprising a pair of parallel, circular butterfly disks that are connected to a shaft for rotation about an axis extending diametrically of a cylindrical valve housing. The parallel disks form a valve plenum within the housing when the valve is in a closed position. A pair of annular flanges on the inner periphery of the valve housing each align radially with a respective one of the butterfly disks when the valve is in the closed position. A small gap is provided between each flange and corresponding disk to facilitate thermal expansion of the valve components. At least a portion of the shaft is hollow and extends externally through the housing. The hollow portion of the shaft is provided with a first aperture located within the valve plenum and a second aperture located external to the valve housing. An external pressure source connects to the second aperture to pressurize or vent the valve plenum to prevent any fluid leakage through the valve.

REFERENCES:
patent: 3870474 (1975-03-01), Houston
patent: 4103708 (1978-08-01), Huntington
patent: 4239061 (1980-12-01), Peterson
patent: 4372338 (1983-02-01), Efferson
patent: 4583568 (1986-04-01), Yumckawa et al.
patent: 5000422 (1991-03-01), Houston

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