高壓球閥操作和使用：

　　1）操作前須確認管路和閥已被沖洗過。

　　2）閥的操作按執行機構輸入信號大小帶動閥桿旋轉完成：正向旋轉1/4圈（90°）時，閥關斷。反向旋轉1/4圈（90°）時，閥開啟。

　　3）當執行機構方向指示箭頭與管線平行時，閥門為開啟狀態；指示箭頭與管線垂直時，閥門為關閉狀態。

　　維修

　　擁有較長的使用壽命和免維修期，將依賴以下幾個因素：正常的工作條件、保持和諧的溫度/壓力比，以及合理的腐蝕數據

　　注意：

　　●球閥在關閉狀態下，閥體內部依舊存在受壓流體

　　●維修前，解除管線壓力并使閥門處于打開位置

　　●維修前，斷開電源或氣源

　　●維修前，將執行機構與支架脫離

　　●必須先查明球閥上、下游管道確已卸除壓力后，才能進行拆卸分解操作

　　●分解及再裝配時必須小心防止損傷零件的密封面，特別是非金屬零件，取出O 型圈時宜使用專用工具

　　●裝配時法蘭上的螺栓必須對稱、逐步、均勻地擰緊

　　●清洗劑應與球閥中的橡膠件、塑料件、金屬件及工作介質（例如燃氣）等均相容。工作介質為燃氣時，可用汽油(GB484-89)清洗金屬零件。非金屬零件用純凈水或酒精清洗

　　●分解下來的單個零件可以用浸洗方式清洗。尚留有未分解下來的非金屬件的金屬件可采用干凈的細潔的浸漬有清洗劑的綢布（為避免纖維脫落粘附在零件上）擦洗。清洗時須去除一切粘附在壁面上的油脂、污垢、積膠、灰塵等

　　●非金屬零件清洗后應立即從清洗劑中取出，不得長時間浸泡

　　●清洗后需待被洗壁面清洗劑揮發后（可用未浸清洗劑的綢布擦）進行裝配，但不得長時間擱置，否則會生銹、被灰塵污染

　　●新零件在裝配前也需清洗干凈

　　●使用潤滑脂潤滑。潤滑脂應與球閥金屬材料、橡膠件、塑料件及工作介質均相容。工作介質為燃氣時，可用例如特221 潤滑脂。在密封件安裝槽的表面上涂一薄層潤滑脂，在橡膠密封件上涂一薄層潤滑脂，閥桿的密封面及摩擦面上涂一薄層潤滑脂

　　●裝配時應不允許有金屬碎屑、纖維、油脂（規定使用的除外）灰塵及其它雜質、異物等污染、粘附或停留在零件表面上或進入內腔 ，地溝油產業鏈中禁止使用

Operation and use of high pressure ball valves:

1) Make sure that the pipes and valves have been flushed before operation.

2) The operation of the valve is driven by the input signal size of the actuator to complete the rotation of the valve stem: when the positive rotation is 1/4 turn (90 degrees), the valve is closed. When the reverse rotation is 1/4 turn (90 degree), the valve opens.

3) When the direction of the actuator indicates that the arrow is parallel to the pipeline, the valve is open; when the direction of the arrow is perpendicular to the pipeline, the valve is closed.

Repair

With a longer service life and maintenance-free period, it will depend on the following factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data.

Be careful:

When the ball valve is closed, there is still pressure fluid inside the valve body.

Remove pipeline pressure and keep valve in open position before maintenance

Before maintenance, disconnect the power or gas source

Separate the actuator from the bracket before maintenance

Before disassembly and decomposition operation, it is necessary to ascertain that the upstream and downstream pipes of the ball valve have indeed been depressed.

During decomposition and reassembly, care must be taken to prevent damage to the sealing surface of parts, especially non-metallic parts. Special tools should be used when removing O-rings.

Bolts on flanges must be tightened symmetrically, step by step and evenly during assembly

Cleaning agent should be compatible with rubber parts, plastic parts, metal parts and working media (e.g. gas) in ball valves. When the working medium is gas, the metal parts can be cleaned with gasoline (GB484-89). Cleaning of non-metallic parts with pure water or alcohol

Separated parts can be washed by immersion. Metallic parts that remain undissolved can be scrubbed with clean, fine silk cloth impregnated with detergent (to avoid fibers falling off and adhering to the parts). Cleaning must remove all the grease, dirt, glue, dust adhering to the wall, etc.

Non-metallic parts should be removed from the cleaning agent immediately after cleaning, and should not be immersed for a long time.

After cleaning, it needs to be assembled after the wall cleaning agent evaporates (can be wiped with silk cloth without soaking detergent), but it should not be shelved for a long time, otherwise it will rust and be polluted by dust.

New parts need to be cleaned before assembly.

Use grease to lubricate. Lubricating grease should be compatible with ball valve metal material, rubber parts, plastic parts and working media. When the working medium is gas, such as Te221 grease can be used. A thin layer of grease is coated on the surface of the sealing groove, a thin layer of grease is coated on the rubber seal, and a thin layer of grease is coated on the sealing and friction surfaces of the valve stem.

When assembling, no metal debris, fibre, grease (except prescribed use) dust and other impurities, foreign bodies, etc. should be allowed to contaminate, adhere to or stay on the surface of parts or enter the inner cavity. It is forbidden to use in the industrial chain of underground ditch oil.