Greasing sealing structure of flip pressure balance greasing type plug valve

The utility model discloses a greasing sealing structure of a flip pressure balance greasing type plug valve. According to the greasing sealing structure, two vertically-through greasing grooves in a plug valve in the prior art are removed, only two first greasing grooves which are not through verti...

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Bibliographic Details
Main Authors YU CHENGLIANG, ZOU NING, XU ZHENHAI, JIN FENGLU, XIE TING
Format Patent
LanguageChinese
English
Published 31.07.2013
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 greasing sealing structure of a flip pressure balance greasing type plug valve. According to the greasing sealing structure, two vertically-through greasing grooves in a plug valve in the prior art are removed, only two first greasing grooves which are not through vertically are reserved in the plug valve, and two second greasing grooves are formed in the corresponding positions of the inner conical surface of a valve body, so that a smooth oil way of a greasing system is ensured, the greasing grooves are prevented from being directly exposed to media in opening and closing processes of the valve, sealing performance of the valve is improved, and sealing service life of the valve is prolonged.
Bibliography:Application Number: CN2013242846U