What is the difference between Weifang electric signal butterfly valve solenoid valve and electric butterfly valve? 2. Calibrate the position of the regulating valve on the site pipeline
2.1 According to the valve tag number specified in the work order, check with the instrument and process personnel whether the medium in the valve pipeline is replaced and discharged, and open the zero valve in front of the valve to discharge all residual liquid and gas. When discharging, containers shall be used to catch it. It is strictly prohibited to discharge it locally to cause pollution.
2.2 Pay attention to the position of the valve on the pipeline before offline, and use a marking pen or a tapping mark to mark the flow direction of the medium between the valve body and the pipeline.
2.3. For complicated control valve and accessory connection, outline sketch and clear marks shall be drawn to create a good condition for resetting the control valve.
、 At present, the electric control valve is most suitable for the environment with high sealing requirements, high life requirements, and the operating temperature must be controlled at - 10 ℃~150 ℃. Take the soft sealing eccentric butterfly valve as an example, which is more suitable for the two-way opening and closing of ventilation and dust removal pipelines. It can be seen in the fields of power, petrochemical, metallurgy, etc.
