What is the difference between different valves? For example: the difference between gate valve and butterfly valve, the difference between ball valve and butterfly valve, the difference between ball valve and gate valve, etc. Let's introduce the differences between different valves!

閘閥與蝶閥的區(qū)別

Difference between gate valve and butterfly valve

動(dòng)作方式的區(qū)別：閘閥屬于直行程閥門，即閥桿帶動(dòng)閥板做上下垂直運(yùn)動(dòng)，完成閘閥的啟閉所以閘閥的流阻小，但是因其開(kāi)啟高度較高，故啟閉速度較慢。而蝶閥屬于角行程閥門，即蝶閥的閥板圍繞閥軸做90°旋轉(zhuǎn)，完成蝶閥的啟閉動(dòng)作。

Difference in action mode: the gate valve is a straight stroke valve, that is, the valve stem drives the valve plate to move vertically up and down to complete the opening and closing of the gate valve, so the flow resistance of the gate valve is small, but the opening and closing speed is slow due to its high opening height. The butterfly valve is an angle stroke valve, that is, the valve plate of the butterfly valve rotates 90 ° around the valve axis to complete the opening and closing action of the butterfly valve.

作用、用途的區(qū)別：閘閥流阻小，密封性能好，閘閥閥板和介質(zhì)流向是垂直角度，如果閘閥在閥板開(kāi)關(guān)不到位，介質(zhì)對(duì)閥板的沖刷使閥板顫動(dòng)，易照成閘閥密封損壞。所以多用于要求密封嚴(yán)格并且不需要頻繁啟閉的管道做截止用，而不適合做調(diào)節(jié)管道介質(zhì)參數(shù)的作用。因?yàn)閱㈤]速度較慢，也不適用緊急切斷的場(chǎng)合。閘閥使用工況范圍很廣，在高溫、低溫、高壓、低壓等工況都可以使用，在截止的場(chǎng)合使用壽命長(zhǎng)。

Difference between function and purpose: the gate valve has small flow resistance and good sealing performance. The flow direction of the gate valve plate and the medium is a vertical angle. If the gate valve is not opened and closed in place on the valve plate, the scouring of the medium on the valve plate will make the valve plate vibrate, which is easy to damage the seal of the gate valve. Therefore, it is mostly used for cut-off of pipelines that require strict sealing and do not need to be opened and closed frequently, and is not suitable for regulating pipeline medium parameters. Because the opening and closing speed is slow, it is not suitable for emergency cut-off. The gate valve can be used in a wide range of working conditions, such as high temperature, low temperature, high pressure and low pressure. It has a long service life in the cut-off situation.

球閥和蝶閥的區(qū)別

Difference between ball valve and butterfly valve

選型和應(yīng)用上的區(qū)別：通常小口徑(一般指DN50以下)選用螺紋球閥比較經(jīng)濟(jì)，DN50以上球閥一般采用法蘭連接，因?yàn)榧庸すに嚭筒牧系脑虼罂趶角蜷y都比較昂貴，但是因?yàn)榍蜷y密封性和本身的流量特性在一些行業(yè)應(yīng)用廣泛,比如造紙工業(yè)、天然氣行業(yè)以及高壓領(lǐng)域等等。蝶閥一般用于大口徑場(chǎng)合(通常指DN50以上)，結(jié)構(gòu)簡(jiǎn)單、相對(duì)低廉，壓力一般在PN16以下(偏心蝶閥一般壓力在PN40以下)，和球閥相比蝶閥的密封性能較差。

Differences in type selection and application: generally, threaded ball valves with small diameter (generally below DN50) are more economical, and ball valves above DN50 are generally connected with flanges. Large diameter ball valves are more expensive due to processing technology and materials. However, because of the tightness and flow characteristics of ball valves, they are widely used in some industries, such as paper industry Natural gas industry and high pressure field, etc. Butterfly valve is generally used in large-diameter occasions (usually above DN50), with simple structure and relatively low price. The pressure is generally below PN16 (eccentric butterfly valve is generally below PN40). Compared with ball valve, the sealing performance of butterfly valve is poor.

球閥和閘閥的區(qū)別

Difference between ball valve and gate valve

密封面的區(qū)別：球閥的密封面是球面;閘閥的密封面是平面。

Difference of sealing surface: the sealing surface of ball valve is spherical; The sealing surface of the gate valve is flat.

運(yùn)動(dòng)方式的區(qū)別：球閥的閥芯是繞自己軸線作旋轉(zhuǎn)運(yùn)動(dòng)的;閘閥的閥板是沿軸線作升降運(yùn)動(dòng)的。

The difference of motion mode: the spool of the ball valve rotates around its own axis; The valve plate of the gate valve moves up and down along the axis.

功能上的區(qū)別：閘閥可以通過(guò)開(kāi)啟度調(diào)節(jié)流量;球閥則不便于做到這一點(diǎn)。

Functional difference: the gate valve can adjust the flow through the opening; Ball valves are not easy to do this.

以上就是小編為大家介紹的關(guān)于不用閥門之間的卻區(qū)別介紹，希望可以幫助到您，更多精彩內(nèi)容可以點(diǎn)擊http://m.lzpazx.cn聯(lián)系在線客服進(jìn)行解答。

The above is the difference between not using valves introduced by Xiaobian. I hope it can help you. More wonderful contents can be clicked http://m.lzpazx.cn Contact online customer service for answers.