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: 6080新视觉YY理论片| 亚洲熟妇无码AV在线观看网址 | 《漂亮的女邻居5》HD| 六安市| 湖北省| 西城区| 成品人和精品人是一个牌子吗| 丁青县| 欧美牲交作爱在线aav| 浮梁县| 色一情一区二区三区四区| 少妇搡BBBB搡BBB搡毛茸茸| 繁昌县| 山外人精品影院| 于都县| 济宁市| 张掖市| 老人性做爰A片老妇人| 日本午夜免费啪视频在线| 欧美亚洲久久综合精品| 高清| 半夜摸妺妺乳C起来好疼| 日本三级香港三级人妇少妇 | 武邑县| 玫久热这里只有精品2| 久久久久国产一区二区三区| 丹东市| 日日橹狠狠爱欧美视频| 浦北县| 日本无码一区二区三区免费播放 | 三人成全免费观看电视剧高清一 | 日的岳抖动高潮| 宁陕县| 躁老太老太騷BBBB| 昌江| 日本厕所间谍偷窥撒尿| 日韩精品无码一区二区视频| 高要市| 芒康县| 织金县| 洛阳市|