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Threaded stop valve

A globe valve and thread technology, applied in the field of threaded globe valves, can solve the problems of the space orientation of the valve body affecting the sealing performance, lack of screw valve disc, inconvenient use, etc. Effect

Inactive Publication Date: 2013-07-31
陈小珑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The general stop valve lacks the screw disc and sealing ring under the disc, so that the space orientation of the valve body itself affects the sealing performance, which brings great inconvenience to the use. This is the general stop valve must be horizontal and vertical The reason for the tightness

Method used

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Embodiment Construction

[0013] Such as Figure 1-3 As shown, a threaded stop valve described in the embodiment of the present invention includes a valve body 1, a valve disc 2 and a valve stem 3, the through-hole nut 4 at the bottom of the valve body 1 and the screw valve at the bottom of the valve disc 2 The flap 5 is connected, the screw valve flap 5 is provided with several through holes 6, the middle part of the valve flap 2 is provided with a layer of sealing ring 7, the valve flap 2 and the valve stem 3 are fastened and connected, and the valve stem 3 The top of the valve is provided with a hand wheel 8, the hand wheel 8 is fixed on the top of the valve stem 3 through a hexagonal nut 9, and the periphery of the valve stem 3 is provided with a valve cover 10, between the valve cover 10 and the valve stem 3 Filled with graphite packing 11, the top of the valve cover 10 is provided with a packing gland 12, and a copper sleeve 13 is provided between the packing gland 12 and the valve stem 3, and th...

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Abstract

The invention relates to a threaded stop valve comprising a valve body, a valve clack and a valve rod. A through-hole nut at the bottom of the valve body is connected with a threaded valve clack at the bottom of the valve clack; the threaded valve clack is provided with a plurality of through holes; a layer of sealing rings is arranged in the middle of the valve clack; the valve clack is connected with the valve rod in a buckling way; the top end of the valve rod is provided with a hand wheel; the hand wheel is fixed on the top end of the valve rod through a hexagonal nut; a valve cover is arranged at the periphery of the valve rod; graphite filler is filled between the valve cover and the valve rod; the top end of the valve cover is provided with a graphite filler gland; a copper sleeve is arranged between the graphite filler gland and the valve rod; the valve body is fixedly connected with the valve cover through bolts; and a sealing gasket is arranged between the valve body and thevalve cover. The threaded stop valve has the advantages of simple structure, convenient manufacturing, maintaining and installing, short staring time during working, good sealing performance, small friction force of sealing surfaces, long service life and wide application range.

Description

technical field [0001] The invention relates to a thread stop valve. Background technique [0002] The general stop valve lacks the screw disc and sealing ring under the disc, so that the space orientation of the valve body itself affects the sealing performance, which brings great inconvenience to the use. This is the general stop valve must be horizontal and vertical The reason for the tightness can be achieved. This threaded globe valve solves this problem, and it will not affect the sealing performance due to the direction in which the valve is placed. This design can be used more widely. Contents of the invention [0003] The purpose of the present invention is to provide a threaded cut-off valve to solve the limitation that ordinary cut-off valves can achieve sealing only when they are horizontal and vertical. [0004] The purpose of the present invention is to realize through the following technical solutions: [0005] A threaded stop valve, including a valve bod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/48F16K1/32F16K31/60F16K41/02
Inventor 陈小珑
Owner 陈小珑
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