Electric PVC ball valve is an important actuator in industrial automation control system. Electric ball valve is a valve that rotates around the axis of the valve stem according to the movement of the valve disc. The change of valve seat opening is in direct proportion to the valve disc stroke. It is mainly used to cut off or connect the medium in the pipeline, and it can also be used for fluid regulation and control. It is a pipeline pressure element for industrial automation process control.

电动PVC球阀的维修方法：

1、 Maintenance method of electric PVC ball valve:

1、非金属零件清洗后应立即从清洗剂中取出，不得长时间浸泡。

1. The non-metallic parts shall be taken out of the cleaning agent immediately after cleaning, and shall not be soaked for a long time.

2、清洗后需待被洗壁面清洗剂挥发后(可用未浸清洗剂的绸布擦)进行装配，但不得长时间搁置，否则会生锈、被灰尘污染。

2. After cleaning, assembly shall be carried out after the cleaning agent for the wall surface to be washed volatilizes (it can be wiped with a silk cloth not soaked in the cleaning agent), but it shall not be put aside for a long time, otherwise it will rust and be polluted by dust.

3、分解下来的单个零件可以用浸洗方式清洗。尚留有未分解下来的非金属件的金属件可采用干净的细洁的浸渍有清洗剂的绸布擦洗。清洗时须去除一切粘附在壁面上的油脂、污垢、积胶、灰尘等。

3. The disassembled individual parts can be cleaned by immersion. The metal parts that have not been decomposed can be scrubbed with clean, fine and clean silk cloth impregnated with cleaning agent. During cleaning, all grease, dirt, glue and dust adhering to the wall surface must be removed.

4、新零件在装配前也需清洗干净。

4. New parts shall also be cleaned before assembly.

5、装配时应不允许有金属碎屑、纤维、油脂、灰尘及其它杂质、异物等污染、粘附或停留在零件表面上或进入内腔。

5. During assembly, metal chips, fibers, grease, dust, other impurities and foreign matters are not allowed to contaminate, adhere to or stay on the surface of parts or enter the inner cavity.

6、只有卸除球阀前后的压力，才能对球阀进行拆卸分解操作。

6. Only when the pressure before and after the ball valve is removed can the ball valve be disassembled.

7、在对球阀的分解与再装配过程，需要对有密封性零部件的保护，特别是非金属零部件，像O型圈等部件好使用专用的工具。

7. During the disassembly and reassembly of the ball valve, it is necessary to protect the sealing parts, especially the non-metallic parts, such as O-rings, with special tools.

8、球阀阀体重新装配时螺栓一定要对称、逐步、均匀地拧紧。

8. When reassembling the ball valve body, the bolts must be tightened symmetrically, step by step and evenly.

9、清洗剂应与球阀中的橡胶件、塑料件、金属件及工作介质(例如燃气)等均相容。工作介质为燃气时，可用汽油(GB484-89)清洗金属零件。非金属零件用纯净水或酒精清洗。

9. The cleaning agent shall be compatible with rubber parts, plastic parts, metal parts and working media (such as gas) in the ball valve. When the working medium is gas, the metal parts can be cleaned with gasoline (GB484-89). Clean non-metallic parts with pure water or alcohol.

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