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Flange type hydraulic butterfly valve

A flange-type, hydraulic technology, applied in the direction of lifting valves, valve details, valve devices, etc., can solve problems such as leakage and affecting the service life of butterfly valves, and achieve good sealing effect, compact structure, convenient and reliable use

Inactive Publication Date: 2013-04-10
孙敬东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing marine hydraulic butterfly valves are susceptible to corrosion, and leakage will occur after long-term use, which will affect the service life of the butterfly valve

Method used

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  • Flange type hydraulic butterfly valve
  • Flange type hydraulic butterfly valve

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Experimental program
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Embodiment Construction

[0014] Such as figure 1 with figure 2 As shown, the flange type hydraulic butterfly valve includes a valve body 1 and a hydraulic device 2. The valve body 1 is provided with a valve stem 3 and a valve plate 4, and the upper end of the valve stem 3 extends out of the valve body 1 and interacts with the hydraulic device. The device 2 is connected; the hydraulic device 2 includes a hydraulic drive head 21 and a connecting end 22, the upper end 31 of the valve stem 3 is connected and fixed to the connecting end 22 of the hydraulic device 2 by screws, and the valve plate 4 is connected to the valve body 1. There is a rubber ring 5 between the sealing surfaces.

[0015] In this embodiment, the rubber ring 5 is a nitrile rubber ring or a fluorine rubber ring, which is more wear-resistant and corrosion-resistant. The valve stem 3 is made of stainless steel, and the valve plate 4 is made of copper or stainless steel, which is more resistant to corrosion. . In this embodiment, two ends ...

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PUM

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Abstract

The invention relates to a flange type hydraulic butterfly valve, comprising a valve body and a hydraulic device, wherein a valve rod and a valve plate are arranged in the valve body, the upper end of the valve rod extends outside the valve body to be connected with the hydraulic device; the hydraulic device comprises a hydraulic drive head and a connection end, the upper end of the valve rod is connected and fixed with the connection end of hydraulic device by screws; a rubber ring is arranged between the valve plate and a valve body sealing surface. Compared with the prior art, the rubber ring of the valve sealing surface uses a nitrile rubber ring or fluororubber ring, thus the rubber ring is more wear-resistant; the valve rod and the valve plate are made of stainless steels, thus the valve rod and the valve plate are more wear-resistant. The flange type hydraulic butterfly valve has features of compact structure, good sealing effect, wear resistance, corrosion resistance and convenience and reliability in use and is particularly suitable for marine ships.

Description

Technical field [0001] The invention relates to a valve, in particular to a marine flange type hydraulic butterfly valve. Background technique [0002] The hydraulic butterfly valve generally includes a valve body and a hydraulic device. The valve body is provided with a valve stem and a valve plate. The upper end of the valve stem extends out of the valve body and is connected with the hydraulic device. The hydraulic device includes a hydraulic drive head and a coupling. At present, the existing marine hydraulic butterfly valve is susceptible to corrosion, and leakage will occur in long-term use, which affects the service life of the butterfly valve. Summary of the invention [0003] In view of the above shortcomings of the existing hydraulic butterfly valve, the purpose of the present invention is to provide a marine flange type hydraulic butterfly valve with corrosion resistance and good sealing effect. [0004] The purpose of the present invention is achieved by adopting the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K31/12F16K1/46F16K1/36F16K27/02
Inventor 孙敬东
Owner 孙敬东