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one-way valve is that fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back, commonly known as one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil, or used in pneumatic systems to prevent reverse flow of compressed air. There are two types of one-way valves: straight-through and right-angle. The straight-through check valve is installed on the pipeline with threaded connection. Right-angle check valve has three forms: threaded connection, plate connection and flange connection.
one-way valve is that fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back, commonly known as one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil, or used in pneumatic systems to prevent reverse flow of compressed air. There are two types of one-way valves: straight-through and right-angle. The straight-through check valve is installed on the pipeline with threaded connection. Right-angle check valve has three forms: threaded connection, plate connection and flange connection.



check valve is also called check valve or check valve. It is used to prevent reverse flow of oil in hydraulic system or to prevent reverse flow in starting system.
check valve has straight-through type and right-angle type. The straight-through check valve is installed on the pipeline with threaded connection. Right-angle check valve has three forms: threaded connection, plate connection and flange connection. Hydraulic control one-way valve is also called locking valve or pressure maintaining valve. It is the same as the one-way valve to prevent the reverse flow of oil. However, when the reverse flow of oil is required in the hydraulic circuit, the control oil pressure can be used to open the one-way valve so that the oil flow can flow in both directions. The hydraulic control one-way valve adopts conical valve core, so the sealing performance is good. When it is required to close the oil circuit, this valve can be used as a one-way locking of the oil circuit to maintain pressure. The hydraulic control check valve controls the leakage of oil in two ways: internal leakage and external leakage. Internal leakage can be used in the oil circuit with no back pressure at the reverse outlet of the oil flow; otherwise, external leakage is required to reduce the control oil pressure.


check valve is a directional control valve in which air flow can only flow in one direction but not in the opposite direction. Its working principle is the same as that of hydraulic check valve. The compression system enters from port P, overcomes spring force and friction to open the valve port of the one-way valve, and compressed air flows from port P to port A; When there is no compressed air at port P, under the action of spring force and residual air force at port A (cavity); The valve port is in a closed state, making the airflow from A to P blocked. The one-way valve is used in occasions where the airflow is not allowed to flow in the opposite direction. For example, when the air compressor inflates the air tank, a one-way valve is set between the air compressor and the air tank. When the air compressor stops working, it can prevent the compressed air in the air tank from returning to the air compressor. One-way valve is also often combined with throttle valve, sequence valve, etc. to form one-way flow throttle valve, one-way sequence valve.
