1. Before installation, check all parts of the pneumatic actuator butterfly valve without missing, model no error, check the body without debris, solenoid valve and silencer without blocking
2. Leave the valve and cylinder closed.
3. Bump the cylinder against the valve (installation can be parallel to or perpendicular to the body) and see if the screw holes are aligned so that there is not too much deviation. If there is a small deviation, turn the cylinder block a bit and then tighten the screws.
4. After installation, the pneumatic butterfly valve is debugged (normal air supply pressure is 0.4 to 0.6 MPA) , and the solenoid valve must be opened and closed manually during commissioning (manual operation can be effective only after losing power to the solenoid valve coil) observe the opening and closing of pneumatic butterfly valve. If during commissioning and operation the valve is found to be a little laborious at the beginning of the opening and closing process, and then is normal, the stroke of the cylinder needs to be reduced (adjusting the stroke adjustment screws at both ends of the cylinder a little bit at the same time, adjusting the valve to the open position, then turn off the air supply and adjust again) until the valve opens and closes smoothly and without leakage. Also note that the adjustable silencer can adjust the valve opening and closing speed, but not too small, or may cause the valve not to move.
5. The product should be kept dry before installation and should not be stored in the open air.
6. Before installing the butterfly valve to check the pipeline, ensure that there is no welding slag and other foreign bodies in the pipeline.
7. Butterfly valve body manual opening and closing resistance moderate, butterfly valve torque and selected actuator torque match.
8. Butterfly valve flange connection with the correct specifications, pipe clamp flange and butterfly valve flange standards. It is recommended to use butterfly valve special flanges. Flat welding flanges are not allowed.
9. Make sure the flanges are properly welded and do not reweld farlane after the butterfly valve is installed to avoid scalding the rubber parts.
10. Line up the pipe flange and align it with the butterfly valve.
11. Install all flange bolts and tighten by hand to make sure the butterfly valve is aligned with flange, then carefully open and close the butterfly valve to ensure flexible opening and closing.
12. Fully open the valve, wrench in accordance with the diagonal order to tighten the bolts, without washers, do not tighten the bolts to prevent serious deformation of the valve ring, opening and closing torque is too large.
Post time: Jul-28-2021