Check whether the device is fully introduced before commissioning the pneumatic butterfly valve

Pneumatic butterfly valve commissioning first check whether the valve fittings are completely installed, solenoid valves and silencers, etc. If it is incomplete, it must not be commissioned. The normal supply air pressure is 0.6MPA±0.05MPA. Before operation, ensure that there is no debris in the valve body stuck in the valve plate. At the office.
  Put the valve into the closed state with external force. Firstly, the valve is placed in the closed state by external force, that is, the valve shaft is rotated clockwise until the valve plate and the valve seat are sealed, and the cylinder is also placed in the closed valve state (ie, the small groove above the cylinder shaft). Close the cylinder with a straight valve about the valve that rotates clockwise to close the valve), then install the cylinder on the valve (the direction of the device is parallel or straight to the valve body), and then see if the screw holes are aligned, not too much Error, if there is a small amount of error, turn the cylinder block a little, then tighten the screws.

  Manually operate the pneumatic butterfly valve manual button during the initial commissioning operation (the solenoid valve coil is de-energized during manual operation, manual operation is useful; when the electronic control is operated, the manual twist is placed in the 0-position power loss, the manual operation is useful; the 0 position is off. Valve, 1 position is to open the valve, that is, to open the valve, if the power is off, if the valve is required to be closed, the power-off position is to close the solenoid valve coil by 180 degrees, and the valve operation condition is investigated. If the valve is found to be slow at the start of the valve opening during the commissioning operation, it will be very quick after the action is taken after the action. During the test run, the valve is found to be slow at the start of the valve opening, but only the action is required. After that, it is very fast. In this case, the valve is closed too tightly. Just adjust the cylinder stroke to a small point. (Turn the stroke adjustment screw at both ends of the cylinder at the same time. Adjust the valve to the open position, then The gas source is turned off and then adjusted. It is easy to turn the valve open and close it in place.