Function and configurationZDZ6D valve is direct-acting sequence valve related to the pressure of the secondary loop, with sequence pressure set through the pressure adjusting mechanism (4); 2 pressure...
Product Detail
Function and configuration
ZDZ6D valve is direct-acting sequence valve related to the pressure of the secondary loop, with sequence pressure set through the pressure adjusting mechanism (4); 2 pressure adjusting springs (3) hold the control valve element (2) in initial position and the valve is closed. Pressure of oil port P1 acts on the valve element end face via control channel (5), get balanced each other with the spring force of the slide valve. If the pressure of oil port P1 is over the setting of the spring (3), valve element (2) moves in direction to the spring to open oil port P, so that oil flows from P1 to P2.
Pressure gauge interface (1), a pressure gauge can be installed to monitor the pressure of the sequence oil route.

Ordering code

Technical data
| Fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal | |
| Fluid temperature range ℃ | -30 to+80 (NBR seal) |
| -20to+80(FKM seal) | |
| Viscosity range m㎡/s | 10 to 800 |
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9.NAS 1638 or 20/18/15, ISO4406 |
| Max operation pressure (input) bar | 315 |
| Highest order pressure setting bar | 250 |
| Min. initial pressure bar | 20 |
| Max flow L/min | 60 |
| Weight kg | About 1.3 |
Unit dimensions
11
Valve securing screw
M5 as per GB/T70.1-10.9 grade, Length determined with regard to heightTightening torque MA=8.9Nm, Order must be placed separately