Opposite clamping type butterfly valve employing hand-operated and hydraulic online pressure measurement

This invention is a manual and hydrodynamic opposite-clamping butterfly valve of online pressure check, including a noumenon that is composed of a hydrodynamic butterfly valve control device, a care axis and the opposite-clamping valve case. The front stage and the back stage sealing rings in the su...

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Bibliographic Details
Main Authors YANYAN JI, JIANLIAN WANG, ZHUHUA JI
Format Patent
LanguageEnglish
Published 16.03.2005
Edition7
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:This invention is a manual and hydrodynamic opposite-clamping butterfly valve of online pressure check, including a noumenon that is composed of a hydrodynamic butterfly valve control device, a care axis and the opposite-clamping valve case. The front stage and the back stage sealing rings in the sub-interlayer added on the butterfly board is mechanically connected, the inter tube of the valve case is mechanically connected with the sealed pressure tube of online check, the core axis and the butterfly board are mechanically linked, the hydrodynamic speed-reducing device is mechanically linked with the core axis, the hydrodynamic speed-reducing device is mechanically linked with the opposite-clamping valve case. This invention is widely used in the projects of oil field exploration, oil chemistry, coal gas, natural gas, hot electricity, hydraulic power station, steel, tap water, sewage processing, pharmacy and foodstuff, and is especially suitable for the pipe of medium and large caliber.
Bibliography:Application Number: CN2004125526