Flow control apparatus

Details Flow control apparatus Flow control apparatus

1978-08-07

1980-12-23

Cline, William R.

Valves and valve actuation

Balanced valves

Reciprocating

251324, 251 57, F16K 3902

Patent

active

042406099

ABSTRACT:
Flow control apparatus is disclosed in which a closure element is reciprocated between flow controlling positions by means of a stem which is substantially counterbalanced with respect to forces on the stem due to the pressure of the fluid being controlled as well as ambient pressure conditions.

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patent: 2152831 (1939-04-01), Williams
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patent: 3232174 (1966-02-01), Grimmer
patent: 3249122 (1966-05-01), Fleckenstein et al.
patent: 3329221 (1967-07-01), Walker
patent: 3331583 (1967-07-01), Baker
patent: 3385561 (1968-05-01), Whalen
patent: 3428297 (1969-02-01), Volpin
patent: 3499287 (1970-03-01), Schrader
patent: 3563508 (1971-02-01), DeLorenzo
patent: 3765642 (1973-10-01), Nelson
patent: 3806084 (1974-04-01), Seese
patent: 3892384 (1975-07-01), Myers
patent: 3916941 (1975-11-01), Usry

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