Blowdown valve

Details Blowdown valve Blowdown valve

1982-06-18

1984-05-22

Schwadron, Martin P.

Fluid handling

Processes

Cleaning, repairing, or assembling

251117, 251315, F16K 520

Patent

active

044495447

ABSTRACT:
A ball valve is provided for cleaning out piping systems between steam boilers and turbine generators of electrical power generating plants prior to start up operations. The valve is designed to minimize impingement between foreign substances trapped in the pipelines and the internal valve passages, and to reduce thermal shock to the piping systems when the valve is opened to atmosphere to rid the system of said foreign substances.

REFERENCES:
patent: 595190 (1897-12-01), Miller
patent: 2757895 (1952-04-01), Bergstrom
patent: 3096965 (1960-05-01), Margus et al.
patent: 3126916 (1964-03-01), Ducey
patent: 3233865 (1966-02-01), Panzica et al.
patent: 3408037 (1965-10-01), Kaiser et al.
patent: 3669404 (1972-06-01), Kaiser
patent: 3722545 (1973-03-01), Furiani
patent: 3841601 (1974-10-01), Grove et al.
patent: 4037818 (1977-07-01), Soderberg et al.
patent: 4130128 (1978-12-01), Kaneko
patent: 4138848 (1979-02-01), Wilber
patent: 4215722 (1980-08-01), Sigmon

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