NRC/INEL under the "Containment Purge and Vent Valve Test Program" in 1985 showed that manufacturers methods for predicting torque requirements had serious limitations. Under design basis conditions, torque requirements in single-offset valves with shaft downstream were found to be self-opening, ...
A butterfly valve balanced torsional force (40) incorporates a pivot mechanism (52) adapted to allow a bimodal motion of the valve plate (42). A recess (54) formed in said valve plate (42) for receiving said pivot mechanism (52), the translational motion of said plate relative to said ...
-The valve body and disc are accurately machined which results in low operating torque and long service life and reliability. -Can be disassembled, material-specific recycling possible. -Can be installed at the end of pipe for lugged type butterfly valve. Technical data Design:API 609\...
A balanced-torque butterfly valve (40) incorporates a pivot mechanism (52) designed to provide for bimodal movement of the valve plate (42). The valve plate (42) has a cavity (54) formed therein to receive the pivot mechanism (52) and to accommodate translational movement of the valve pla...
2, Triple eccentricity seal butterfly valve uses three eccentric structure, suitable for high temperature and high pressure and other complex conditions and requirements of strict cut off occasion, no dead zone while opening and closing, and small open torque. 3,...
fl y Valve Premium Pneumatic Actuation Package Spears ® innovative patented seat design departs from traditional liner-seat type valves to eliminate seat creep, reduce operating torque and provide positive seal off. Ideally suited for fl ow control or throttling, this high performance valve ...
Scotch Yoke Pneumatic Actuator for High Torque Butterfly Valve Control, Find Details and Price about Pneumatic Actuator Valve from Scotch Yoke Pneumatic Actuator for High Torque Butterfly Valve Control - WUXI ST.HANS PNEUMATIC VALVE ACTUATORS MAKER CO.,
Butterfly control valve actuating device for aircraft, has actuating units including lever arm in contact with linear displacement shaft at point such that linear displacement of shaft induces torque driving axle in rotation 来自 掌桥科研 喜欢 0 阅读量: 66 申请(专利)号: FR20080054646 申请日期:...
BALANCED-TORQUE BUTTERFLY VALVE 专利名称：BALANCED-TORQUE BUTTERFLY VALVE 发明人：ANDERSON, Blaine, W.,TERVO, John, N.,BALL, Larry, K.,HINES, Marshall, U.申请号：EP90917849.0 申请日：19900620 公开号：EP0479941A1 公开日：19920415 专利内容由知识产权出版社提供 摘要： A butterfly valve ...
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