欧美韩中文精品有码视频在线,国产欧美日韩综合视频专区,妺妺窝人体色WWW看人体

Home-News

China's petrochemical pump development potential is huge

Updated:2017-04-02

Connection between valve and pipeline or equipment choice is correct, right will directly affect the pipeline valve run, run, drip, leak phenomenon. The common valve connections include: flange connection, connected to the clamp, butt welding, threaded connections, card sets of connection, the clamp connection, since the sealing connection, and other forms of connection.



Fluid source hao


Water supply equipment valve manufacturer benchmarking


One of the biggest manufacturer of shipments


Environment-friendly enterprises (durability sealing low noise)

Constant pressure water supply equipment in the valve flange connection:

With flanges on both ends of the valve body, and pipe flange on the correspondence, by bolted flange is installed in the pipeline. Flange connection is a connection form of valve used most frequently. Flange with sudden surface (RF), plane (FF), the concavo-convex surface (MF), etc. According to the joint surface shape can be divided into the following kinds:

1, smooth type: used for low pressure valves, processing more convenient.

2, the concave and convex type: high work pressure, can be used in the washer.

3, mortise type: plastic deformation is larger washers are available, and in the corrosive medium is used more widely, the sealing effect is better.

4, trapezoidal groove: with oval metal ring gasket, used to the work pressure of 64 kg/cm2 or valves, valve or high temperature.

5, lens type: the washer is lens shape, made of metal. For a working pressure of 100 kg/cm2 or high pressure valve, or high temperature valve.

6, the o-ring type: this is a relatively new form of flange connection, it is with the emergence of a variety of rubber o-ring, and developed, it than ordinary flat washer on the sealing effect is reliable.

In the constant pressure water supply equipment connected to the clamp of the valve

Valve installed in the middle of the two pieces of the flange, the body usually have positioning hole to facilitate installation location, bolted directly to the valve and the connection forms of two pipe clamp wear together.

Welding connection

1, the butt welding: according to the requirements of butt welding process on both ends of the valve body into the butt welding groove, and pipe welding groove, fixed by welding on the pipe.

2, socket connection: according to the requirements of socket welding processing on both ends of the valve body, and pipeline through the socket connection.


Fluid source hao

Water supply equipment valve manufacturer benchmarking

One of the biggest manufacturer of shipments

Environment-friendly enterprises (durability sealing low noise)



Fluid source hao


Water supply equipment valve manufacturer benchmarking


One of the biggest manufacturer of shipments


Environment-friendly enterprises (durability sealing low noise)


  • <menuitem id="fyapw"><center id="fyapw"></center></menuitem>

        1. <menuitem id="fyapw"><center id="fyapw"></center></menuitem>
          <pre id="fyapw"></pre>
          主站蜘蛛池模板: 《年轻护士2》中文字幕| 乡城县| 新乡市| 少妇高潮毛片免费观看A京东热 | 日本无码一区| 大关县| 抚顺县| 成人在无码AV在线观看一| 高清| 邹城市| 成全影视在线观看第6季| 潢川县| 日本av不卡在线观看| 老妇大炕交换配乱大交| 亚洲国产精品成人精品A片| 成全视频免费观看在线观看| 成全影视在线观看第6季| 亚洲熟妇AV乱码在线观看| 国色天香一卡2卡三卡4卡乱码| 成全电影大全在线播放| 新干县| 性生交大片免费看L| 沂水县| 日本人三级三妇少| 老妇大炕交换配乱大交| 浓毛老太交欧美老妇热爱乱| 中山市| 日本制服av免费一区| 东兴市| 欧美老人与年轻人a片| 沂水县| 永德县| 四LLL少妇BBBB槡BBBB| 日本少妇XXX做受| 南木林县| 白河县| 南丹县| 灌阳县| 罗江县| 林甸县| 日本高清视频www444|