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Classification of valves (2)

  • Categories:NEWS
  • Author:Minchuang Fitting
  • Origin:Original
  • Time of issue:2021-01-19
  • Views:194

(Summary description):1. Classification by structural featuresThe structural characteristics of the valve is that according to the direction of the movement of the closing ···

Classification of valves (2)

(Summary description):1. Classification by structural featuresThe structural characteristics of the valve is that according to the direction of the movement of the closing ···

  • Categories:News
  • Author:Minchuang Fitting
  • Origin:Original
  • Time of issue:2021-01-19
  • Views:194
Information

1. Classification by structural features

The structural characteristics of the valve is that according to the direction of the movement of the closing part relative to the valve seat, it can be divided into: (1) the door shape: the closing part moves along the valve seat center;Such as cut-off valve (2) cock and ball: the closing part is a plunger or ball, revolving around its center line;Such as plug valve, ball valve (3) gate shape: closing parts along the vertical valve seat center movement;Such as gate valve, gate, etc. (4) swing shape: the closing part revolves around the shaft outside the valve seat;Such as swing check valve, etc. (5) butterfly: the disc of the closing part, revolving around the shaft in the valve seat;For example, butterfly valve, butterfly check valve, etc. (6) slide valve: the closing part slides in the direction perpendicular to the channel.Such as slide valve

2. Classify by connection method

(1) Threaded connection valve: valve body with internal or external thread, and pipe thread connection.(2) Flanged connection valve: valve body with a flange, connected with the pipeline flange.(3) welding connection valve: valve body with welding groove, welding connection with the pipeline.(4) Clamp connection valve: the valve body with a clamp, connected with the pipe clamp.(5) The sleeve connection valve: it is connected with the pipe by the sleeve.(6) the clamp connection valve: the valve and the pipe at both ends are directly threaded and clamped together with bolts.

3. Classify by valve body material

(1) metal material valve: the valve body and other parts are made of metal material.Such as cast iron valve, cast steel valve, alloy steel valve, copper alloy valve, aluminum alloy valve, lead alloy valve, titanium alloy valve, Monel alloy valve and so on.(2) Non-metallic material valve: the valve body and other parts are made of non-metallic materials.Such as plastic valves, enamel valves, ceramic valves, FRP valves, etc.(3) metal body lining valve: the valve body shape is metal, and the main surface that contacts with the medium inside is lined, such as rubber lining valve, plastic lining valve, ceramic lining valve, etc.

4. Classify by switch direction

(1) Angle stroke includes ball valve, butterfly valve, plug valve, etc. (2) straight stroke includes gate valve, globe valve, Angle seat valve, etc


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