Straight-through type lifting check valve

The invention relates to a straight-through type lifting check valve, which adopts forge piece blanks of a valve body and a valve cover of an existing high-pressure or ultrahigh-pressure lifting check valve as well as a sealing piece and a connecting piece which are matched with each other. A valve...

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Bibliographic Details
Main Authors QIAN JINCHENG, JIANG JINWEI, JIANG SU'E
Format Patent
LanguageChinese
English
Published 25.07.2023
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 invention relates to a straight-through type lifting check valve, which adopts forge piece blanks of a valve body and a valve cover of an existing high-pressure or ultrahigh-pressure lifting check valve as well as a sealing piece and a connecting piece which are matched with each other. A valve cavity in a valve body is a blind hole valve cavity with a square round-corner section, and an inlet and outlet channel hole of the valve body is vertically communicated with the blind hole valve cavity; an integrated valve seat is arranged at the inner end of the inlet channel of the valve body in a surfacing mode. An inclined hole is drilled between the valve cavity and the outlet channel hole; a valve core assembly is arranged in a valve body, a valve cover and a valve cavity which is sealed by a sealing backing ring, a stud and a nut, wherein a guide rod and a compression spring are arranged in an elliptical pit on the upper surface of the valve core assembly; the lower surface of the valve core assembly is an
Bibliography:Application Number: CN202310646831