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What are the precautions for operating electric valve

Time:12-29

1. Startup, confirm the clutch handle in the corresponding position,
2. If it is in the control room control of electric valve, beat switch REMOTE location, and then through the SCADA system control the switch of electric valve,
3. If the manual control, the switch position in LOCAL, on-site operation switch of electric valve, electric valve in place or close in place when it will stop working automatically, finally beat operating switch to the middle position,
4. Using field operating valve, should monitor the valve opening and closing instructions and running status of the valve stem, valve opening and closing degree to meet the requirements,
5. Using the site operation close the valve, the valve closed in place before, should stop electric valve, switch to the micro will flow valve,
6. After the trip and super torque controller setting of the valve, for the first time fully open or close the valve, the monitoring should be paid attention to the control of the stroke, such as valve switch to the position without stop, manual emergency stop immediately,
7. In the open, close the valve in the process, any error is found in the signal lamp instructions, valve have abnormal sound, should stop check in time,
8. The power of the electric valves should be closed after operation is successful,
9. Multiple valve operating at the same time, should pay attention to the sequence of operation, and meet the requirements of production process,
10. Open a by-pass valve of large diameter valves, if on both ends of the pressure difference is bigger, should first open the bypass valve regulating, to open the main valve, the main valve opens, shall be immediately closed bypass valve,
11. Transceiver pigging ball (device), the after the ball valve must be fully open,
12. The operating ball valve, gate valve, globe valve, butterfly valve can only be fully open or close, it is strictly prohibited to adjust,
13. Operating gate valve, globe valve and tablet in the process of the valve, when closed or open to the top dead center or bottom dead center, should be 1/2 ~ 1 rotary ring,
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