Fluid handling – With leakage or drip collecting
Patent
1991-11-26
1993-04-20
Walton, George L.
Fluid handling
With leakage or drip collecting
73 46, 137315, 251214, 277 2, 277 17, G01M 304, F16K 4300
Patent
active
052033708
ABSTRACT:
An apparatus for mounting a rotary actuator, having a rotary drive bushing, to a valve stem of a rotary controlled valve having first and second primary seals and a fugitive fluid collection chamber therebetween. The apparatus includes a mounting member disposed between the actuator and the valve which is removably fastened thereto to permit the valve stem to coaxially engage the rotary drive bushing provided in the rotary actuator. O-rings are affixed to flanges that extend from the ends of the mounting member for creating a fluid-tight seal between the mounting member and the actuator and between the mounting member and the valve. The fluid-tight mounting member serves to provide a secondary fugitive fluid collection chamber outboard of the secondary stem seals that is adapted to collect the fugitive fluid that passes the secondary stem seals. A fluid detection device may be attached to the secondary fugitive fluid collection chamber via a port provided in the mounting member.
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Fugitive Emission Journal-- Valve Technology Edition-- Mar. 1991 by Worcester Controls Corp.
Block Gary C.
Friedline Gary W.
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