Three-piece forged steel soft sealing fixed ball valve

A technology of fixed ball valve and soft seal, which is applied in the direction of valve details, valve device, valve shell structure, etc., can solve the problems of poor sealing performance and achieve the effects of good sealing performance, small opening torque and long service life

Pending Publication Date: 2022-03-04
SUZHOU SIP STARD VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention proposes a three-piece forged steel soft-seal fixed ball valve, which solves the problem of poor sealing performance of the existing three-piece forged steel soft-seal fixed ball valve

Method used

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  • Three-piece forged steel soft sealing fixed ball valve
  • Three-piece forged steel soft sealing fixed ball valve
  • Three-piece forged steel soft sealing fixed ball valve

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Embodiment Construction

[0029] The technical solutions protected by the present invention will be specifically described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, a three-piece forged steel soft-seal fixed ball valve includes: a valve body 1, a valve cover 2 arranged on both sides of the valve body 1, a ball 3 inside the valve body 1, and a ball 3 arranged on the outside of the ball 3 and perpendicular to the valve body. The valve stem 4 on the axis of the body 1 is provided with a metal valve seat 8 between the valve cover 2 and the ball 3, and the metal valve seat 8 and the valve cover 2 are arranged in a stepped contact, and the metal valve seat 8 and the valve A number of valve seat springs 40 are evenly arranged between the covers 2, and a soft valve seat 9 is arranged between the metal valve seat 8 and the ball 3, and the valve seat spring 40 compensation structure is adopted to provide an initial pre-tightened seal through the valve seat spring 40...

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Abstract

The invention provides a three-piece forged steel soft sealing fixed ball valve which comprises a valve body, valve covers arranged on the two sides of the valve body, a ball body in the valve body and a valve rod arranged on the outer side of the ball body and perpendicular to the axis of the valve body, a metal valve seat is arranged between the valve covers and the ball body, and the metal valve seat and the valve covers are in stepped contact. A plurality of valve seat springs are evenly arranged between the metal valve seat and the valve cover, and a soft valve seat is arranged between the metal valve seat and the ball body. By means of the mode, the problem that an existing three-piece type forged steel soft sealing fixed ball valve is poor in sealing performance is solved.

Description

technical field [0001] The invention relates to the field of fixed ball valves, in particular to a three-piece forged steel soft-sealed fixed ball valve. Background technique [0002] With the gradual increase of oil extraction and export volume, the market demand for valves also increases, which has become a new growth point of the valve market. However, the common valve stem sealing structure, due to a certain degree of leakage, is the main leakage point of oil pipelines, and has gradually failed to meet the needs of the valve market. [0003] In view of the fact that there have been several major hazards caused by oil spills around the world, such as marine environmental pollution, people's awareness of environmental protection has gradually increased, and the valves for oil pipelines have changed from meeting basic requirements such as limiting internal leakage and external leakage to essential requirements. Meet the low emission requirements of the valve to the externa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K5/20F16K27/06F16K31/53H05F3/00
CPCF16K5/0647F16K5/0689F16K5/0694F16K5/08F16K5/201F16K27/067F16K31/535H05F3/00
Inventor 张力心赵越
Owner SUZHOU SIP STARD VALVE
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