Notes on the installation of electric regulating ball valves:
1. Before maintenance of the electric regulating ball valve, relieve the pipeline pressure, keep the ball valve in the open position, cut off the power supply or air source, and separate the actuator from the bracket.
2. Disassembly and disassembly can only be carried out after confirming that the upstream and downstream pipelines of the ball valve have been depressurized.
3. When assembling the electric regulating ball valve, the bolts on the flange must be tightened symmetrically, gradually and evenly.
4. The cleaning agent shall be compatible with the rubber parts, plastic parts, metal parts of the ball valve and the working medium (such as fuel gas). When the working medium is fuel gas, metal parts can be cleaned with gasoline (GB484-89). Non-metallic parts shall be cleaned with purified water or alcohol.
5. Care must be taken to avoid damaging the sealing surfaces of parts during disassembly and reassembly of the electric regulating ball valve, especially non-metallic parts. Special tools should be used when removing O-rings.
6. Non-metallic parts shall be taken out of the cleaning agent immediately after cleaning and shall not be soaked for a long time.
7. Assembly can be performed after the cleaning agent on the cleaned surfaces volatilizes (a silk cloth without cleaning agent can be used for wiping). Do not leave them unattended for a long time; otherwise, rust and dust contamination may occur. New parts also need to be thoroughly cleaned before assembly.
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