Polymer pressure-regulating injection valve

The utility model relates to a polymer pressure regulating injection valve, comprising a valve body (1) having an upper cavity (1-1) and a lower cavity (1-2) which are separated by a conoid valve seat (1-3) with the big end facing the lower cavity (1-2); a nozzle which is arranged on the lower end o...

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Bibliographic Details
Main Authors ZHANG CHUNJIN, JIN CHAOYING
Format Patent
LanguageChinese
English
Published 27.02.2008
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 relates to a polymer pressure regulating injection valve, comprising a valve body (1) having an upper cavity (1-1) and a lower cavity (1-2) which are separated by a conoid valve seat (1-3) with the big end facing the lower cavity (1-2); a nozzle which is arranged on the lower end of the valve body (1) and is provided with an injection passage (2-1), a conoid passage entrance (2-2) corresponding to a conoid needle valve core arranged on the end part of a valve rod (3); and the valve rod (3) provided with a reverse conoid reflux valve core (3-1) fitting the valve seat (1-3). The utility model is characterized in that: the needle valve core (5) is separated from the reflux valve core (3-1) with the space between adjustable; with the throttle valve which can regulate reflux liquid and the throttle opening of the injection passage replacing the prior on-off valve which plays a single on-off function, the pressure for liquid material injection is uniform, thereby guaranteeing the accurate proporti
Bibliography:Application Number: CN20062126407U