DH6/10

Pressure override characteristics (viscosity 36 mm 2 /s (cSt))
PRB10
PRB 20
30
Secondary side pressure MPa
Secondary side pressure MPa
Flow rate (L/min)
Flow rate (L/min)
Pressure reducing valve – balanced piston type pilot operated
Pressure drop characteristics (viscosity 36 mm 2 /s (cSt)) in the case of check valve free flow
Pressure drop amountMPa
Pilot valve
The pilot valve used for the pressure
reducing valve – balanced piston type
pilot operated is as follows.
If you need the pilot valve only, please
specify “pilot valve type” and contact us.
Flow rate (L/min)
Nominal dimension
Pilot valve type
*
(Note)
*
Same as the pilot relief valve for RB10, 20 and 30
(Note) The pressure adjusting system is shown.
1 = Handle adjusting type
2 = Thread adjusting type (with cap)
3 = Handle with key adjusting type
PRB20X
Pilot valve
For PRB20, 30
Series number: 10
Shape of pressure adjusting part
1 = Handle adjustment
2 = Thread adjustment (with cap)
3 = Handle with key adjustment
Type of hydraulic oil
No symbol
V
W
=
=
=
Mineral based hydraulic oil
Phosphate ester based hydraulic oil
Fatty ester based hydraulic oil
Water-glycol based hydraulic oil
Highest adjustment pressure
100 = 9.8MPa100kgf/cm 2
315 = 30.9MPa315kgf/cm 2
2-52