常見的閥門故障有哪些？

What are the common valve malfunctions?

Valve malfunction

　　閥門的故障原因和預防方法多樣，以下是一些常見的情況：

There are various causes and prevention methods for valve failures, and the following are some common situations:

　　操作不當。技術人員用力過猛或操作不規范可能導致閥門失靈。

Improper operation. Excessive force or improper operation by technical personnel may cause valve failure.

　　閥門質量不合格或安裝失誤。使用劣質閥門或安裝時出錯，可能導致閥門故障。

Valve quality is unqualified or installation error occurs. Using inferior valves or making mistakes during installation may lead to valve failure.

　　閥門使用過頻或維修不及時。高使用頻率和缺乏及時維修可能導致部件受損加速。

Frequent use or untimely maintenance of valves. High frequency of use and lack of timely maintenance may lead to accelerated damage to components.

　　閥門填料失誤。填料過多、填料壓實程度過高或未壓緊，都可能導致閥門故障。

Valve packing error. Excessive filling, excessive compaction or lack of compaction can all lead to valve failure.

　　密封面問題。密封面研磨不平、閥桿與關閉件連接處問題、閥桿彎曲或裝配不正等都可能導致泄漏。

Sealing surface issue. Uneven grinding of the sealing surface, problems with the connection between the valve stem and the closing part, bending or improper assembly of the valve stem can all lead to leakage.

　　異物堵塞。閥門內部被異物或顆粒物堵塞，導致流體無法順暢流通。

Foreign object blockage. The interior of the valve is blocked by foreign objects or particles, resulting in the inability of fluid to flow smoothly.

　　控制失效。傳動部件損壞、閥門結構問題或其他意外情況可能導致控制失效。

Control failure. Damage to transmission components, valve structure issues, or other unexpected situations may lead to control failure.

　　對于這些故障，應采取相應的預防和措施，如正確安裝和調整閥門、定期維護和檢修、使用合適質量的閥門和填料、確保密封面平整等。此外，還應避免不當操作，保持閥門使用環境的清潔，及時處理泄漏和控制失效問題。

For these faults, corresponding prevention and solution measures should be taken, such as correctly installing and adjusting valves, regular maintenance and repair, using appropriate quality valves and packing, ensuring smooth sealing surfaces, etc. In addition, improper operation should be avoided, the valve usage environment should be kept clean, and leakage and control failure issues should be promptly addressed.

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