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良工閥門帶您學習閘閥和截止閥

來源:http://egsam.com/ 日期:2024-11-26 發(fā)布人:創(chuàng)始人

  閘閥和截止閥是兩種常見的工業(yè)管道設備,它們在控制流體流動方面發(fā)揮著重要作用,但它們在結構、工作原理、性能特點以及使用場合上存在顯著差異。以下是它們的主要區(qū)別:

  Gate valves and globe valves are two common industrial pipeline equipment that play an important role in controlling fluid flow, but they have significant differences in structure, working principle, performance characteristics, and usage scenarios. Here are their main differences:

  結構差異

  Structural differences

  截止閥 :

  Globe valve:

  包括閥體、閥瓣、閥桿和手輪。

  Including valve body, valve disc, valve stem, and handwheel.

  閥瓣通過閥桿的上下移動來控制開啟和關閉,實現(xiàn)流體通斷。

  The valve disc is controlled to open and close by the up and down movement of the valve stem, achieving fluid flow control.

  閘閥 :

  Gate valve:

  包括閥體、閘板、閥桿和手輪。

  Including valve body, gate, valve stem, and handwheel.

  閘板通過上下移動來實現(xiàn)閥門啟閉,開啟時閘板脫離流體通道,關閉時緊密貼合閥座。

  The gate valve is opened and closed by moving up and down. When opened, the gate valve disengages from the fluid channel, and when closed, it tightly fits the valve seat.

  工作原理

  working principle

  截止閥 :

  Globe valve:

  通過閥瓣的線性運動控制流體流動,改變流向,具有一定節(jié)流能力。

  By controlling fluid flow through linear motion of the valve disc, changing the direction of flow, it has a certain throttling ability.

  密封面通常是閥瓣與閥座之間的錐面接觸,密封性能較好。

  The sealing surface is usually the conical contact between the valve disc and the valve seat, which has good sealing performance.

  閘閥 :

  Gate valve:

  通過閘板的上下移動實現(xiàn)流體通斷,流體流向不變,不適用于調節(jié)流量。

  By moving the gate up and down to achieve fluid flow, the fluid direction remains unchanged and is not suitable for regulating flow rate.

  密封面是閘板與閥座之間的平面接觸,密封性能相對較低。

  The sealing surface is the flat contact between the gate and the valve seat, and its sealing performance is relatively low.

截止閥02

  應用場景

  Application scenarios

  截止閥 :

  Globe valve:

  適合需要精確控制流量的場合,如頻繁啟閉或調節(jié)流量的管道系統(tǒng)。

  Suitable for occasions that require precise flow control, such as pipeline systems that frequently open or close or regulate flow.

  適用于高壓、高溫及腐蝕性介質。

  Suitable for high pressure, high temperature, and corrosive media.

  閘閥 :

  Gate valve:

  適合需要全開或全關的場合,如不經常操作的管道系統(tǒng)。

  Suitable for occasions that require full opening or full closing, such as pipeline systems that are not frequently operated.

  流阻小,適用于大口徑、大流量的管道系統(tǒng)。

  Low flow resistance, suitable for large-diameter and high flow pipeline systems.

  優(yōu)缺點

  Advantages and disadvantages

  截止閥 :

  Globe valve:

  優(yōu)點:密封性好、調節(jié)性能強。

  Advantages: Good sealing and strong adjustment performance.

  缺點:流阻大,開啟和關閉力矩較大。

  Disadvantages: High flow resistance, large opening and closing torque.

  閘閥 :

  Gate valve:

  優(yōu)點:流阻小,開啟和關閉力矩較小。

  Advantages: Low flow resistance, small opening and closing torque.

  缺點:密封性相對較差,不適用于調節(jié)流量。

  Disadvantages: Relatively poor sealing performance, not suitable for regulating flow rate.

  流向

  flow to

  截止閥 :

  Globe valve:

  介質可以從閥芯的下方或上方進入。

  The medium can enter from below or above the valve core.

  閘閥 :

  Gate valve:

  介質流向在閥門內部不變。

  The flow direction of the medium remains unchanged inside the valve.

  維護流程

  Maintenance process

  截止閥 :

  Globe valve:

  大部分截止閥閥座和閥瓣可以在線更換,不需要拆除整個閥門。

  Most globe valve seats and discs can be replaced online without the need to dismantle the entire valve.

  閘閥 :

  Gate valve:

  維修不適合在現(xiàn)場管道上進行,通常需要將整個閥門從管線上拆下。

  Repairs are not suitable for on-site pipelines and usually require the entire valve to be removed from the pipeline.

  選擇閘閥還是截止閥應根據(jù)具體的應用需求、工作條件以及所需的流量控制能力來決定。希望這些信息能幫助你更好地理解它們之間的區(qū)別

  The choice between gate valve and globe valve should be determined based on specific application requirements, working conditions, and the required flow control capability. I hope this information can help you better understand the differences between them

  本文由良工閥門提供幫助,更多的相關內容請點擊:http://egsam.com希望本文能夠為您帶來幫助,感謝您的閱讀!

  This article is assisted by Lianggong Valve. For more related content, please click: http://egsam.com I hope this article can be helpful to you. Thank you for reading!

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