针型阀工作原理

针型阀工作原理

原文: 任何阀门的作用都是为了切断流体. 根据阀芯的不同,可以分为截止阀,闸阀,旋塞阀,球阀,蝶阀,针型阀等等。针型阀形比其他类型的阀门能够耐受更大的压力,密封性能好,所以一般用于较小流量,较高压力的气体或者液体介质的密封.针型阀形与压力表配合使用是最合适的了.一般的针型阀形都做成螺纹连接。公称压力:PN2.5 PN4 PN6.4 PN16 PN32Mpa 公称通径:DN5~DN25 适用介质:油﹑水﹑气等多种非腐蚀性或腐蚀性介质 适用温度:-20℃~+440℃ -70℃~-240℃ ≤540℃ ≤570℃等制造材料:20#﹑1Cr18Ni9Ti﹑304﹑316﹑316L﹑12Cr1Mov等。

“Needle valve working principle”是由中国针型阀网提供的国际阀门新闻,译文仅供参考。另外,中国针 型阀网还提供相关产品搜索: 仪表阀组、 仪表球阀 (气动管路球阀)、 仪表截止阀(气动管路截止阀)、 更多针型阀产品、 针型阀价格等。

译文:
Any valve action for cutting fluid. Depending on the valve core can be divided into cut-off valve, gate valve, plug valve, ball valve, butterfly valve, needle valve, etc.Needle valve type shape more than any other type of valve that can tolerate more pressure, sealed performance is good, so generally used for small flow, high pressure gas or liquid medium sealing. Type needle valve and pressure gauge is used the most appropriate. The general type needle valve type screw thread connection. Nominal pressure: PN2.5 PN4 PN6.4 PN16 PN32Mpa nominal diameter: DN5 ~ DN25 applicable medium: oil, water, gas and other non – corrosive or temperature suitable for corrosive medium: – 20 ℃ ~ + 440 ℃ — 70 ℃ ~ 70 ℃ 540 ℃ 570 ℃ or less or less manufacturing materials such as: 20 #, 1 cr18ni9ti, 304, 304, 316 l, 12 cr1mov, etc。

 

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