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Leakage-proof stop valve

A shut-off valve and leak-proof technology, applied in the field of shut-off valves, can solve the problems of affecting the service life of shut-off valves, unreliable sealing, waste, etc., and achieve the effects of easy cleaning of solids, reliable sealing, and prevention of liquid leakage

Inactive Publication Date: 2014-03-12
CHENGDU KEXING SEALING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing stop valve, there will be wear between the valve disc and the sealing port of the valve body and between the valve stem and the valve body, which will lead to unreliable sealing and leakage, which will affect the service life of the stop valve and cause waste

Method used

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  • Leakage-proof stop valve

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Experimental program
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Effect test

Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing.

[0011] see figure 1 , the leak-proof shut-off valve of the present invention comprises a valve body 1, a valve stem 2, a valve disc 4 and a control handle, the valve disc 4 and the control handle 3 are fixed at both ends of the valve stem 2, and a flow channel is arranged in the valve body 1, and the flow channel The two ends of the channel are the inlet and the outlet respectively, and the connection between the inlet and the outlet is a sealing port 5. The valve disc 4 is in the shape of a rounded table, and the lower surface of the valve disc 4 and the valve stem 2 are provided with enamel. Layer 6, the sealing port 5 is a rounded frustum shape matching the valve disc 4, the bottom of the valve body 1 is provided with an overflow port, and the corresponding overflow port is provided with a bottom cover 7, and the position of the corresponding outlet in the flow channel ...

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PUM

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Abstract

The invention discloses a leakage-proof stop valve which comprises a valve body, a valve rod, a valve clack and a control handle. The valve clack and the control handle are fixed at the two ends of the valve rod, a flow channel is arranged in the valve body, the two ends of the flow channel are provided with a flow inlet and a flow outlet respectively, and the connecting portion of the flow inlet and the flow outlet is provided with a sealing opening. The valve clack is in an inverted boss shape, enamel layers are arranged on the surface of the lower portion of the valve clack and the surface of the lower portion of the valve rod, and the sealing opening is in an inverted boss shape which is matched with the valve clack. An overflow opening is formed in the bottom of the valve body, a bottom cover is arranged corresponding to the overflow opening, and a filter net is arranged in the flow channel corresponding to the flow outlet. The leakage-proof stop valve is simple in structure, reliable in sealing and long in service life.

Description

technical field [0001] The invention relates to a stop valve, in particular to a leak-proof stop valve. Background technique [0002] The traditional globe valve consists of a valve body, a valve stem, a valve disc and a control handle. The valve disc and the control handle are fixed at both ends of the valve stem. The control handle drives the valve stem to move up and down, and the valve stem drives the valve disc to move up and down, thereby realizing valve Opening and closing, a flow channel is arranged in the valve body, the two ends of the flow channel are respectively an inlet port and an outlet port, and the connection between the inlet port and the outlet port is a sealing port. The opening and closing part of the stop valve is a plug-shaped disc, the sealing surface is flat or conical, the disc moves in a straight line along the center line of the valve body, and the movement form of the valve stem also has a lifting and rotating rod type. For valves that move alo...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K1/38F16K1/32F16K27/02F16K41/02B01D35/04
CPCF16K1/00F16K1/38F16K25/04F16K27/0254F16K41/02
Inventor 徐成志
Owner CHENGDU KEXING SEALING TECH