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Stop valve

A globe valve and valve stem technology, applied in valve details, valve devices, engine components, etc., can solve the problems of globe valve wasting time, no obvious effect, affecting production, etc., to extend service life, good sealing effect, and save production. cost effect

Inactive Publication Date: 2017-01-04
SHANDONG HUALIAN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During production, the stop valve gradually began to leak with the increase of service life, especially after the stop valve was opened, the leakage was serious, and the pressure plate was used to press it, but there was no obvious effect, so the stop valve had to be replaced with a new one, which caused waste, and the stop valve was replaced It also wastes time and affects production

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with embodiment:

[0016] Such as figure 1 As shown, the present invention includes a valve body 2, a valve stem 9 is arranged in the valve body 2, and the upper end of the valve stem 9 passes through the valve cover 8 to set the hand wheel 7, and it is characterized in that the bottom of the valve cover 8 passes through the valve stem 9 and is arranged Packing 5, the upper part of the packing 5 is provided with a gland 6, the gland 6 compresses the packing 5 through a nut, and the lower part of the packing 5 passes through the valve stem 9 to set the first gasket 3 and the second gasket 4 in sequence, the first gasket 3 is a metal gasket, Bosses are arranged at the metal washer lower end, the first washer 3 is a stainless steel washer or an aluminum alloy washer, the second washer 4 is a rubber elastic washer, and the second washer 4 can be provided with 2-4 pieces.

[0017] working principle:

[00...

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Abstract

The invention relates to a stop valve which is mainly applied to the field of stop valves. The stop valve comprises a valve body, and a valve rod is arranged inside the valve body. The upper end of the valve rod penetrates through a valve deck to be provided with a hand wheel. The valve rod penetrates through the bottom of the valve deck, and filler is arranged at the bottom of the valve deck. A gland is arranged on the upper portion of the filler, and the gland can compress the filler through a nut. The lower portion of the filler allows the valve rod to penetrate through and is sequentially provided with a first gasket and a second gasket. The first gasket is a stainless steel gasket, and the second gasket is a rubber elastic gasket. By the adoption of the stop valve, liquid leakage of the stop valve can be effectively prevented, the service life is long, and cost is reduced.

Description

technical field [0001] The invention relates to a shut-off valve, which is mainly used in the field of shut-off valves. Background technique [0002] During production, the stop valve gradually began to leak with the increase of service life, especially after the stop valve was opened, the leakage was serious, and the pressure plate was used to press it, but there was no obvious effect, so the stop valve had to be replaced with a new one, which caused waste, and the stop valve was replaced It also wastes time and affects production. Contents of the invention [0003] The purpose of the present invention is to provide a shut-off valve, which can effectively prevent the shut-off valve from leaking, has a long service life and saves costs. [0004] The shut-off valve of the present invention comprises a valve body, a valve stem is arranged in the valve body, a handwheel is installed at the upper end of the valve stem through the valve cover, packing is arranged at the bottom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/04
CPCF16K41/04
Inventor 陈传伟李庆教张建国
Owner SHANDONG HUALIAN MINING