DH6/10

Relief valve – Balanced piston cartridge type pilot operated
Y
T
P
Relief valve – Balanced piston cartridge type pilot operated
Overview
This balanced piston type pilot operated,
cartridge type relief valve regulates the
highest pressure of the hydraulic circuit with
a spool type relief valve to prevent overload
of hydraulic equipment and drive machines.
Besides, it is used to set the pressure for
control of the hydraulic equipment.
Type indication
Features
1. As this is a cartridge type, it can be
incorporated in a manifold in a compact way.
2. Operation is correct and both responsiveness
and stability are good.
3. Pressure override is small.
Relief valve- Balanced piston type pilot operated
Nominal dimension
6, 10
Connection method
C Cartridge type
Series number: 10
Type of hydraulic oil
No symbol = Mineral based hydraulic oil
Fatty ester based hydraulic oil
Water-glycol based hydraulic oil
V = Phosphate ester based hydraulic oil
Highest adjustment pressure
100 9.8MPa (100kgf/cm 2 )
315 = 30.9MPa (315kgf/cm 2 )
Shape of pressure adjusting part
4 = Thread adjustment (without cap)
Hydraulic symbols
P
T
Specifications
Nominal dimension
Maximum working pressure MPa (kgf/cm 2 )
Maximum flow rate L/min
Mass kg
6 10
30.9 (315)
60 100
0.2 0.26
Pressure increase value per turn (clockwise) of adjust
thread MPa (kgf/cm 2 )
Highest
adjustment pressure
Nominal
dimension
6 10
100
315
2.57 (26.2)
12.9 (131.7)
2.57 (26.2)
12.9 (131.7)
(Note) As the above value is a calculated value, there are slight variations in the
product.
2-30