EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-540.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1SB10 - Brake Sequence Valve
Brake sequence directional valve
10 L/min (2.5 USgpm) • 350 bar (5000 psi)
Description
This valve provides a bias so
that a predetermined pressure
(15 bar) has to be reached
before the valve will switch. In
a typical brake circuit the brake
will be held on until system
pressure reaches the bias
pressure. Once this pressure
has been reached the valve will
switch and supply pressure
to the brake to hold it off. If
the pressure then falls below
the bias pressure the valve
will again switch, applying the
brake in a controlled manner.
Operation
When the pressure in the inlet
line is below the switching
pressure (15 bar), the outlet
will be connected to the tank,
the spool being held in place by
the spring force.
When the pressure in the inlet
line exceeds the switching
pressure, the spool will slide
back, opening inlet to outlet.
Features
Cartridge design enabling
speedy servicing when mount-
ed in a body or in a composite
manifold.
Ratings and Specifications
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F)
Max working pressure 350 bar (5000 psi)
Rated flow 10 L/min (2.5 US gpm)
Internal leakage 50 ml/min nominal
Temperature range -30° to 90°C (22° to 194°F)
Cavity A893 (see Section M)
Torque cartridge into cavity 60 Nm (44 lbs ft)
Mounting position Unrestricted
Filtration BS5540/4 Class 18/13 (25 micron or better)
Nominal viscosity range 5 to 500 cSt
Cartridge material All working parts hardened and ground steel. External surfaces zinc plated.
Standard housing materials Aluminum and Steel
Weight 1SB10 .12 kg (.26 lbs), 1SB15 1.0 kg (2.2 lbs)
Seal kit SK182 (Nitrile) SK182V (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop
3
2
1
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
290
232
174
116
58
0
20
16
12
8
4
0
0 3 6 9 12 15
0 0.8 1.6 2.4 3.2 4.0
1-2
2-3
T
ank (3)
Outlet (2)
Inlet (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-541.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1SB10 - Brake Sequence Valve
Brake sequence directional valve
10 L/min (2.5 USgpm) • 350 bar (5000 psi)
Model Code
1
Function
1SB10 - Cartridge only
2 3 41
1SB**
3W S 377
2
Port Size
3
Seals
S - Nitrile
SV- Viton
Code Port Size Housing Number
Aluminum Single Steel
0 Cartridge only
2W 1/4" BSP A1882
3W 3/8" BSP A1883
6T 3/8" SAE A10715 A7371
1
2 holes Ø7.0
(0.28) thro’
2
3
7.0 (0.28)
76.2
(3.00)
19.0
(0.75)
61.0
(2.40)
37.5
(1.48)
38.1
(1.50)
16.0
(0.63)
50.8 (2.00)
25.4 (1.00)
7.0 (0.28)
62.2
(2.45)
10.0
(0.39)
max
25.4 A/F
Inlet (1)
51.5
(2.03)
Outlet (2)
7/8-14 UNF-2A
Tank (3)
Dimensions
mm (inch)
Installation DrawingCartridge Only
––
4
Body Material
377 (Omit for aluminum (up to 210
bar).
