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Brake valve with detachable valve seat

A technology for dismantling valve seats and gate valves, which is applied to sliding valves, valve details, valve devices, etc., can solve the problems of difficult removal of tools, large economic losses, and scrapped gate valves, and achieves the effects of stable structure, simple operation and easy realization.

Inactive Publication Date: 2015-01-07
CHENGDU FANXINJIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the valve seat of most gate valves is processed by butt welding in the cavity of the valve body, and it is very difficult to take it out without special tools. Replace the gate valve, and the replaced gate valve will be scrapped
The economic loss caused is large and the cost is wasted

Method used

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  • Brake valve with detachable valve seat

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, a gate valve with a detachable valve seat includes a valve stem 7, a valve seat 5, and a gate plate 6. The valve body is divided into a primary valve body 2 and a secondary valve body 1, and the gate plate 6 is arranged on the primary valve body. 1; the valve seat 2 is embedded in the valve seat ring 4, and both sides of the valve seat 2 and the gate plate 6 are sealed and bonded; the valve seat ring 4 is set in the fluid channel of the first-stage valve body 2, and the valve seat ring 4 and the primary valve body 2 are provided with a sealing ring 8; the secondary valve body 1 is threadedly connected with the primary valve body 2, and one end extends into the primary valve body 2 against the valve seat ring 4, and the secondary valve body 2 and the primary valve body 1 connection with metal sheath 3 to tighte...

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PUM

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Abstract

The invention discloses a brake valve with a detachable valve seat and belongs to the field of valves. The brake valve with the detachable valve seat comprises a valve rod, the valve seat and a brake plate. A valve body is divided into a first-level valve body and a second-level valve body. The brake plate is arranged in the first-level valve body, the valve seat is embedded in a valve seat ring, and the valve seat is bonded to two sides of the brake plate in a sealing mode. The valve seat ring is arranged in a fluid channel of the first-level valve body, a sealing ring is arranged at the connection position of the valve seat ring and the first-level valve body, the second-level valve body is connected with the first-level valve body through threads, one end of the second-level valve body stretches into the first-level valve body to abut against the valve seat ring. By means of the brake valve, replacement of the valve seat is achieved, scrap of the whole brake valve is not required, and the economical cost is saved.

Description

technical field [0001] The invention relates to the field of valves, in particular to a gate valve with a detachable valve seat. Background technique [0002] The gate valve is a valve that uses the gate as the opening and closing part and moves vertically along the axis of the valve seat to realize the opening and closing action. The gate valve can only be fully opened and fully closed. The opening and closing part is a gate, and the movement direction is perpendicular to the direction of the fluid. The two sealing surfaces of the square I-shaped gate valve form a wedge shape, and the wedge angle varies with the valve parameters. [0003] In the prior art, the valve seat of most gate valves is processed by butt welding in the cavity of the valve body, and it is very difficult to take it out without special tools. Replace the gate valve, and the replaced gate valve will be scrapped. The economic loss that causes is big, wastes cost. Contents of the invention [0004] Th...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/30F16K27/04
CPCF16K3/0218F16K3/312F16K27/044
Inventor 高静袁代华邓金智
Owner CHENGDU FANXINJIA TECH