PPR plastic permanent magnet cut off valve

A globe valve, plastic technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of increased engineering cost, inability to adjust the flow, loose metal inserts, etc., to overcome the high manufacturing cost, easy installation, maintenance, adjustment, etc. The effect of traffic

Inactive Publication Date: 2009-05-06
钟荷清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] All kinds of traditional stop valves are operated by rods and shafts, and leakage at the dynamic seals of rods and shafts is inevitable; when installing metal stop valves in PPR plastic pipeline projects, it is necessary to change the hot-melt connection into a threaded connection. Special accessories greatly increase the project cost; the existing PPR globe valve, in the process of repeated tightening and loosening of the valve, it is easy to loosen its metal inserts and cause leakage. When replacing the valve, part of the pipeline must be replaced ; The known permanent magnet stop valve technology (ZL 02 2 79055.1) can not adjust the flow rate, which limits its application range. The permanent magnet stop valve mainly designed with metal materials is not easy because the manufacturing cost is higher than the traditional valve. Promoted in civil water supply pipelines

Method used

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  • PPR plastic permanent magnet cut off valve
  • PPR plastic permanent magnet cut off valve
  • PPR plastic permanent magnet cut off valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] according to figure 1 As shown, the valve seat 1 made of one-time injection of PPR material and the valve cover 2 made of one-time injection of POM material are connected by flanges and bolts, and the operating handle 3 and the internal structure of the valve still use the known Permanent magnet stop valve (ZL02279055.1) technology, the water inlet and outlet of valve seat 1 and the PPR pipe are connected by hot melt.

Embodiment 2

[0014] according to figure 2 As shown, the valve seat (1) made of one-time injection of PPR material and the valve cover 2 made of one-time injection of POM material are connected by flanges and bolts, and the operating handle 3 and the internal structure of the valve are still used. The well-known permanent magnet stop valve (ZL02279055.1) technology, the inlet and outlet of the valve seat 1 and the non-PPR material pipeline are connected by flanges and bolts.

Embodiment 3

[0016] according to image 3 As shown, the valve seat 1 made of one-time injection of PPR material and the valve cover 2 made of one-time injection of POM material are connected by flanges and bolts. figure 1 , figure 2 The difference is: a peripheral guide sleeve 4 with internal threads is added to the bonnet 2, external threads are added to the outside of the operating handle 3, the operating handle 3 and the peripheral guide sleeve 4 form a threaded connection, and the operating handle 3 can be rotated forward and reverse. Make the permanent magnet 5 move up and down and stay in any position, so as to control the armature in the valve to stay in different positions, so that the valve can control different flow rates.

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PUM

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Abstract

A PPR plastics permanent-magnet stop valve comprises a valve seat single-injection moulded of PPR plastics, a valve deck made of high-strength engineering plastics and metal connected with the valve seat via a flange plate and a bolt and an operating handle forming a threaded connection with the outside guide cover on the valve deck.

Description

technical field [0001] The invention relates to the technical field of permanent magnet valves, in particular to a PPR plastic permanent magnet stop valve. Background technique [0002] All kinds of traditional stop valves are operated by rods and shafts, and leakage at the dynamic seals of rods and shafts is inevitable; when installing metal stop valves in PPR plastic pipeline projects, it is necessary to change the hot-melt connection into a threaded connection. Special accessories greatly increase the project cost; the existing PPR globe valve, in the process of repeated tightening and loosening of the valve, it is easy to loosen its metal inserts and cause leakage. When replacing the valve, part of the pipeline must be replaced ; The known permanent magnet stop valve technology (ZL 02 2 79055.1) can not adjust the flow rate, which limits its application range. The permanent magnet stop valve mainly designed with metal materials is not easy because the manufacturing cost ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K27/00
Inventor 钟荷清
Owner 钟荷清
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