What inspections should be done before installation of electric valves and pneumatic valves?

What inspections should be done before installation of electric valves and pneumatic valves?

    First inspection: check the electric valve, pneumatic valve instruction manual: sampling inspection. It includes two books: the quality specification of raw materials and the finished product specification of the manufacturer. The quality of valve raw materials shall be sampled and inspected in accordance with relevant regulations. The inspection results of high-temperature solenoid valves shall meet the requirements of current national standards or meet the requirements of the order contract. After the valve is assembled and formed, there should be no defects such as paint peeling on the surface, and collisions should be avoided when the valve is transported.

    Second inspection: packaging inspection of electric valves and pneumatic valves. Buyers and sellers must pack and leave the factory in accordance with the requirements of the contract documents. The packaging must be reliable and firm. Under normal circumstances, there should be no damage, crushing, scratching, etc. In addition, each packing box of the gas solenoid valve should be provided with a production label. The solenoid valve indicates the material, diameter, pressure, connection method, quantity, model and production date of the electric valve and pneumatic valve.

    Third inspection: check the list of electric valves and pneumatic valves during unloading.

    When loading and unloading electric valves or pneumatic valves without outer packaging, they must be handled with care. When heavy valves are encountered, they must be lifted with slings. It is strictly forbidden to use steel wire ropes to lift them.

    Long-distance transportation of electric valves and pneumatic valves should be carried in containers.

    When transporting valves without external packaging in vehicles, sleepers lined with oak rubber pads should be installed on the vehicle.

    After the on-site production, on-site transportation and installation of raw materials enter the site, the electric actuator shall be carefully inspected according to the cargo list. If any quality defect or quantity shortage of electric valves or pneumatic valves is found, the manufacturer shall be notified in writing. On-site processing and workshop prefabrication have the same operating technology and quality requirements!

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