049905 check valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil, or in pneumatic systems to prevent reverse flow of compressed air.
One-way valve has two kinds of straight-through and right-angle. Straight-through check valves are installed in the pipeline with threaded connections. Right Angle one-way valve has three forms of threaded connection, plate connection and flange connection. Liquid control check valve is also known as locking valve or pressure valve, which is the same as a check valve to prevent reverse flow of oil. But in the hydraulic loop need oil flow reverse flow and can be used to control the oil pressure,
open 049905 check valve, so that the oil flow in both directions can flow. Hydraulic control check valve uses conical spool,
so the sealing performance is good. In the requirement of closed oil, 049905 check valve can be used as the one-way lock of oil and play the role of pressure holding. The liquid control check valve control oil leakage mode has internal leakage type and external leakage type two. In the oil flow reverse outlet without back pressure in the oil pipeline available internal leakage; Otherwise need to use the leakage type, in order to reduce the control oil pressure.
Installation and Use
1. Both ends of the valve pathway should be blocked and there should be dry and ventilated room. If stored for a long time, it should be checked frequently to prevent corrosion.
2, the valve should be cleaned before installation, and eliminate the defects caused in the process of transportation.
3. During installation, the logo and nameplate on the valve must be carefully checked to see if they meet the use requirements.
4. The valve is installed on the horizontal pipe with the valve cover up.
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