Electromagnetic check valve

The utility model relates to a check valve used for the pipe line work field widely and improves a present mechanical check valve to cause the check valve to be provided with the warning function. The valve of the check valve is provided with a center rod, and a column-shaped NS double pole magnet b...

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Bibliographic Details
Main Authors YUN GUO, CHUNFENG JIANG, XIANLI ZHANG
Format Patent
LanguageEnglish
Published 26.09.2001
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:The utility model relates to a check valve used for the pipe line work field widely and improves a present mechanical check valve to cause the check valve to be provided with the warning function. The valve of the check valve is provided with a center rod, and a column-shaped NS double pole magnet bar is arranged in the rod. A valve seat body is provided with a magnet preventing center guiding rod, and a column-shaped NS double pole magnet bar is arranged in the rod. The magnet preventing center rod and the magnet preventing center guiding rod are vertically arranged, and the check valve can warn in the process of cutting off the happening operation by using the magnetic action principle of the homogeneity being in the repulsion and the isomerism being in the suction. The check valve changes the circle ring-shaped flat surface seal of the original mechanical check valve to the conical surface seal, and the seal cutting off operation becomes more reliable.
Bibliography:Application Number: CN2000207769U