Top-entry bidirectional sphere valve

The utility model discloses a top-entry bidirectional sphere valve comprising a valve body and a sealing assembly axially installed on a lower shaft hole of the valve body. The sealing assembly comprises a ball body, a ball clack rotating shaft arranged between a ball body sealing surface and a valv...

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Bibliographic Details
Main Authors WANG CHUIHONG, DAI XIANCHUN, REN ZEWEN
Format Patent
LanguageChinese
English
Published 18.06.2014
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:The utility model discloses a top-entry bidirectional sphere valve comprising a valve body and a sealing assembly axially installed on a lower shaft hole of the valve body. The sealing assembly comprises a ball body, a ball clack rotating shaft arranged between a ball body sealing surface and a valve body sealing surface, and an operation head embedded in the ball body. When being rotated, the operation head drives the ball body to rotate around the ball clack rotating shaft and thus the ball body sealing surface and a valve base sealing surface can be in tight fit. The top-entry bidirectional sphere valve also comprises a valve rod fixedly connected with the operation head. The problem in the prior art that it is difficult for the conventional top-entry hard seal ball valve to achieve zero leakage is solved. The top-entry bidirectional sphere valve reduces the opening/closing moment, saves energy, has improved reliability, feasibility and economical efficiency and can achieve favorable benefit.
Bibliography:Application Number: CN20132891898U