ZDa series is monoblock valve ,hydraulic valve,directional control valve,directional spool valve,which is widely used in the hydraulic system of forklift and light loading machine and so on.
The hydraulic distributor is used for switching on/off and directing the working fluid between head flow generators (hydraulic pumps), head flow consumers (hydraulic cylinders, motors, etc.), and the tank. It is manufactured with up to 6 plungers with parallel or serial distribution
Take model ZDa-L15F-4OT as follows for your kindly reference:
ZDa: product series;
L: thread connection, the size is G1/2;G3/4,G1
15: the diametre, corresponding flow is 60L/min; ALSO
PROVIDE DIAMETRE 15MM FOR YOUR CHOICE.
E: working pressure, 20mpa;
4:means 4 working spool;
O: when the valve is in neutral position, the oil is circulated back into the tank;
T: spring return;
Nominal Pressure (Mpa) | Max Pressure (Mpa) | Nominal Flow (L/Min) | Allowable Back Pressure (Mpa) | Hydraulic Oil | ||
Temperature range(°C) | Viscosity range(mm2/s) | Filter Precision (μm) | ||||
20 | 31.5 | 60 | ≤1 | -20~+80 | 10~400 | ≤10 |
Ambient temperature | -40C...+60C |
Viscosity | 12 ...800 mm2/s |
Fluid temperature | -15C...+80C |
Filtration | 10 to NAS 1638 |
Max operating pressure | 315 bar |
Back pressure | 50 bar |
Nominal flow | 60 l/min |
Leakage(A,B-T) | 15cm3/min at 120bar |
Spool stroke | +/-7 mm |
Actuating force | < 200 N |
Modification/ Spools | with 1 to 7 |
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