The Check Valve regulates the flow of the medium and reduces the pressure of the medium by controlling the opening and closing degree of the opening and closing components in the valve body, and adjusts the opening and closing degree of the opening and closing components through the effect of the pressure behind the valve to keep the pressure behind the valve at a certain level. Within the range, when the inlet pressure changes continuously, the outlet pressure is maintained within the set range to protect subsequent life and production equipment.
Check Valve is also called piston Check Valve and steam Check Valve. The necessary component of the pneumatic
Control Valve, its main function is to reduce the pressure of the air source so that the control valve can obtain stable air source power for control and adjustment. This kind of
Universal Valve is generally installed horizontally on the pipeline. According to the structural form, it can be divided into membrane type, spring membrane type, piston type, lever type and bellows type. Depending on the number of seats, it can be a single-seater or a two-seater. According to the position of the valve, it is divided into direct acting type and reaction type. The operation of the Check Valve is controlled by the pressure behind the valve. When the pressure sensor detects an increase in valve pressure indication, the Check Valve opening decreases. It is detected that the pressure of the Check Valve decreases, and the opening of the Check Valve increases to meet the control requirements. Check Valve - the pressure reduction ratio of this valve must exceed the system value to a certain extent. Even maximum or minimum flow rates should be able to respond to direct or reaction control signals. These Universal Valve should be selected for the useful control range, which is 20% to 80% of the maximum flow rate. Usually has proportional or proportional characteristics. These types of Universal Valve inherently have the optimal flow characteristics and flow range required for proportional control.
The working principle of the Check Valve: It is mainly based on the principle of lever, which uses the pressure inside the valve to control the opening of the valve.
Main purpose and performance: This valve is suitable for water, steam, and air medium pipelines. It can reduce the inlet pressure to a required outlet pressure through adjustment. When the inlet pressure and flow rate change, the outlet will be automatically maintained by the energy of the medium itself. The pressure is within a certain range, but the difference between the inlet pressure and the outlet pressure must be ≥0.2MPA/CM.
Features of the Check Valve: The self-operated pressure Check Valve does not require the application of energy, but is a pressure reducing product that uses the regulated medium to adjust itself. The biggest feature of this product is that it can work in places without electricity and gas, while saving energy. The pressure setting value can be adjusted at will during operation. It adopts the characteristics of quick opening flow, sensitive action and good sealing performance.
