The series CVYDF12(YDF12-00-00) of cartridge type pilot operated hydraulic check valve, as it can serve as a one-way through the role of oil, also by hydraulic control, so that both directions can pass oil.
Hydraulic operated check valves with control pressure control piston in the oil when the oil under pressure to move up, push plunger to force the valve open, then the port connected to P2 and P1, the oil can flow the opposite direction.
The cartridge type pilot operated hydraulic check valve leakage based on the different ways, internally drained and can be divided into two kinds of leakage, leakage-type check valve, which acts on the reverse before the opening of the case of high cavity pressure P1, then P1 cavity pressure control piston move to stop the force is very small, will help reverse check valve open; internally drained pilot-operated check valve is to control the chamber on the piston to communicate directly with the P1 and no leakage of the mouth cavity, it can only be used before the opening of the reverse case of low pressure chamber P1.
Cartridge type pilot operated hydraulic check valve of the main purposes: the lock cylinder, hydraulic cylinder for the vertical bearing valve, the valve chamber in the hydraulic system components essential to control it through the mouth of the on-off control valve to control the liquid flow direction, it is in the hydraulic system uses the most, is the most varieties and specifications of control components.
The technical information:
Max. operating pressure: 350 bar
Rated flow capacity: 75.7 L/MIN
Internal leakage: ≤80ml/min
Recommended filtration: 25 MICRON
Hydraulic fluids: Mineral Oil, Viscosity 10 - 400 cST
Temperature range: -30° C to +110° C
Note: For extension of the service life, It is better to use the condition where is no gas or dust in ambient which can corrupt metal or destroy nonconductor
Please contact us for any special products.
The installation dimensions as follow;
The installation dimensions as follow;
