It is a spring-loaded seat valve. The check valve is used for blocking of the flow in one and low-loss flow in the other direction. The closing element is guided.
Design
Seated valve
Cartridge type
Technical data
Hydraulic fluid
Mineral oil according to DIN 51524 part 1 and 2 (other fluids on request)
Fluid temperature range
-20 to 120 °C
Ambient temperature range
-20 to 120 °C
Viscosity range
2.8 to 800 mm2/s
Max. flowrate
20 to 45 l/min
Max. operating pressure port A
500 (RVM) resp. 700 bar (RVH)
Max. operating pressure port R
500 (RVM) resp. 700 bar (RVH)
Max. Pressure loss
see pressure loss chart
Opening pressure
0,138 bar
Filtration (recommendation)
According to NAS 1638, class 10 resp. ISO/DIN 4406 class 21/19/16