In industrial production and equipment operation, through check valve (also known as non-return valve) is an important valve device. Straight-through check valves are required in some specific scenario devices. The following lists some common scenario devices that must use straight-through check valves.
Pump systems: Pump systems usually require the use of straight check valves to prevent water backflow. When the pump stops working, the valve prevents water from flowing back into the pump from the outlet, avoiding damage to the pump and other related equipment.
Compressed air systems: In compressed air systems, through check valves are used to control the direction of air flow. It prevents air from flowing back into the compressor, maintains the normal operation of the system, and prevents other equipment from being damaged.
Refrigeration system: The refrigeration system also needs to use a through check valve to control the flow of refrigerant. It can ensure that the refrigerant can only flow in one direction, effectively maintain the working effect of the refrigeration system, and prevent the countercurrent of the system.
Sewage treatment unit: In the sewage treatment unit, the straight check valve is used to prevent sewage backflow. It can ensure that the sewage can only flow in the specified direction, prevent the sewage from flowing back from the drainage pipe to the treatment equipment, and avoid cross-contamination and damage to the equipment.
Evaporator: An evaporator is a common device used to heat and evaporate liquids. The role of the straight check valve in the evaporator is to ensure that the liquid can only flow in one direction to avoid backflow and other adverse effects.
Gas water heaters: Gas water heaters usually use straight check valves to prevent gas backflow and the risk of causing an explosion. It can ensure that the smoke generated by combustion can only be discharged from the exhaust pipe, to avoid the ignition point inside the water heater to be ignited by the smoke.
Gas boiler: The role of the straight check valve in the gas boiler is also to prevent gas backflow. It can ensure that the exhaust gas generated by combustion can only be smoothly discharged from the chimney, preventing the flue gas from pouring back into the boiler, causing safety hazards.
Washing machines and dishwashers: Washing machines and dishwashers usually need to use a straight check valve to stop the flow of water back. It ensures that only water enters the laundry and dishwashing process and does not flow back into the water supply system, avoiding confusion and equipment damage.
High pressure cleaning systems: In high pressure cleaning systems, straight check valves are used to prevent water backflow. When the high-pressure spray gun stops working, the valve will be closed to prevent water from flowing back to the high-pressure pump and water source, protecting the safety and reliability of the equipment.
Mixed feed production equipment: In the mixed feed production equipment, straight check valves are used to prevent material backfilling. It ensures that the material can only flow in one direction, avoiding cross-contamination of the mixed feed and problems in the production process.
In short, the straight-through check valve is necessary in the above scenario equipment, and they play an important role in preventing the media backflow and protecting the normal operation of the equipment and system. The use of through check valves can help improve the reliability, efficiency and safety of equipment, reduce the risk of failure and damage, and reduce maintenance and repair costs.
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