DH6/10

Sequence valve — Balanced piston type pilot operated
SB/SBE
Internal pilot external drain type
A B Y
Overview
This balanced piston type pilot operated
sequence valve, which is of seat type and
controls pressure, is used when sequence
action or unloading action of the hydraulic
circuit is performed.
Type indication
SB
Features
1. Compared to the hydrocushion type, the
balanced piston type pilot operated is
quite superior in override characteristics.
2. As this is of balanced piston type pilot
operated, the pressure range can be
adjusted in a wide range.
3. It performs various functions by the
connection method with the pilot and
drain.
Sequence valve – Balanced piston type pilot operated
Sequence valve - Balanced piston type pilot operated
Nominal dimension
10, 20, 30
Connection method
P = Gasket connection type
Series number: 10
Type of hydraulic oil
No symbol = Mineral based hydraulic oil
V = Phosphate ester based hydraulic oil
W = Fatty ester based hydraulic oil
Water-glycol based hydraulic oil
Check valve provided or not
No symbol = Without check valve
C = check valve
Shape of pressure adjusting part
1 = Handle adjustment
2 = Thread adjustment (with cap)
3 = Handle with key adjustment
Highest adjustment pressure
Pilot, Drain system
Internal drain
External drain
Internal pilot
No symbol
Y
External pilot
X
XY
210 = 20.6MPa (210kgf/cm 2 )
Hydraulic symbols
SB*/210Y SBE*/210Y SBE*/210XY-*-S
A
A
A
X
B
Y
Y
B
B
Y
2-43