What are the requirements for valves for small and medium-sized automatic wastewater treatment equip

What are the requirements for valves for small and medium-sized automatic wastewater treatment equipment?

by:Ocpuritech     2021-06-24
What are the requirements of small and medium wastewater treatment equipment for automatic valves writer:? In the small fully automated wastewater treatment equipment used in the multi-valve gate valves, ball valves, using acid, using rubber lined diaphragm and pneumatic equipment on the base of pipelines Diaphragm valve. Therefore, valves are very important for small and medium-sized automatic wastewater treatment equipment. What are the requirements for valves for small and medium-sized automatic wastewater treatment equipment? Both gate valves and ball valves are used to stop the flow of media in the pipeline and play a role in isolation. Gate valves are also called gates, and ball valves are also called cut-off (stop) gates. The requirements for them must be strict and not leaking. Each valve shall be subjected to a hydraulic test of 1.25 times the working pressure. Check the flexibility of opening and closing of the valve, check whether the packing meets the requirements, and whether the valve stem at the packing seal is corroded. The gate valve has the highest usage rate in the pipeline. The main components of the gate valve are the valve body, bonnet, gate, stem, stem nut and packing. The material of the gate valve sealing ring used in the water treatment process is rubber. A gate valve with a diameter of 100mm exceeds 30kg; a gate valve with a diameter of 150mm exceeds 60kg. Gate valves are mostly used on equipment pipelines below 1 MPa. Globe valves or cut-off doors, ball valves are mostly used in 1.6-3MPa medium-pressure equipment pipelines. Rubber-lined diaphragm valves are used on equipment pipelines that use acid and alkali, and pneumatic diaphragm valves are used on equipment pipelines that are automatically controlled or remotely operated. Rubber-lined diaphragm valves and pneumatic diaphragm valves are used in highly corrosive media with a temperature not exceeding 60°C, and their working pressure is below 0.6MPa. The stable supply of water quality is an important condition for safe production. The small and medium-sized automatic wastewater treatment equipment has high stability, simple and convenient operation, and is equipped with UV ultraviolet rays and membrane filters.
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