Control valve on-site commissioning

Control valve installation, before driving in the production process should be carried out on-site commissioning of the control valve. Live debugging sub-line debugging and system debugging.
Line debugging
Debugging and used to check the connection of the control valve signal lines, air lines or hydraulic lines are connected properly.
1 control valve input signal connections. Typically, the check valve positioner. The control valve input signal from the controller, so the output from the controller outputs an end signal, check the control valve is in the end position of a starting signal, to check whether the control valve is in the starting position; To do this, check the gas supply source pressure is normal; filter pressure reducer is working properly; hydraulic system supply oil pressure is normal; power supply is normal; output signal is correct, and at least take the 5:00 check in the measuring range meets the desired relationship between the input signal and the valve position. Should check the open air, air to close the mode of action is correct, whether to meet the safety requirements of the process of the production process.stainless steel pneumatic cylinders
2 control valve output signal connections. The control valve output signal of the valve position signal can be analog signals or digital signals. Should check the control valve of the input signal at the same time, check the valve position signal is correct. HART or intelligent electric valve positioner, you should check whether the valve position status information can be transmitted correctly. Should snoop control valve plug and seat control valve full stroke during the operation of mechanical vibration and unusual noise.
3 hand wheel debugging. Check the hand wheel the correct rotation and action, limit and locking device is easy to use.standard air cylinder
When the deviation exceeds the allowable deviation limit, corresponding debugging. For example, changing the position of the valve position switch, check wiring or piping for leaks and so on.
System debugging