Spring type emergency cut-off valve
A cut-off valve, emergency technology, applied in the direction of valve lift, valve details, valve devices, etc., can solve the problems of complicated installation and maintenance, easy leakage, poor sealing performance, etc., to achieve convenient installation and maintenance, good sealing performance, and design reasonable effect
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[0013] The present invention will now be further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0014] Such as figure 1 A spring-type emergency shut-off valve shown includes a valve body 1, a lower valve cover 2 installed below the valve body 1 and an upper valve cover 4 installed above the valve body 1, and a top cover 9 is connected above the upper valve cover 4 The valve body 1 has a built-in valve stem 6, and the valve stem 6 is provided with a lower spring 3 near the lower valve cover 2, one end of the lower spring 3 is fixed on the lower valve cover 2, and the other end of the lower spring 3 is connected with a lower valve plate 8; The rod 6 is provided with an upper spring 5 near the upper valve cover 4, one end of the u...
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