BC479679931671en-000101
1CE90
Overcenter Valve, Standard, Direct Acting, Internal Drain, Port 3 Pilot
350 bar [5000 psi] • 90 l/min [24 US gpm]
DESCRIPTION AND OPERATION
This is a direct acting overcenter valve, which is a pilot assisted relief with a free flow check. With the relief valve set at approximately 1.3 times the
maximum load induced pressure, the valve will prevent flow from port 1 to 2. When pilot pressure is applied to port 3, the valve will meter the flow from
port 1 to 2, compensating for any change in pilot pressure due to over-running or unstable loads. Free flow takes place from port 2 to port 1 through
the check portion of the valve. These valves are ideal in most applications bringing stability, load holding, and hose failure protection when the valve is
mounted onto or into the actuator. The spring chamber is connected to the valve port 2, so any back pressure will increase the pilot pressure required to
keep the valve open and the pressure at which the valve will open as a relief valve. This is also available in a dual housing for bi-directional control.
SCHEMATIC
DIMENSIONS
mm [in]
PERFORMANCE CURVES
Pressure Drop
PERFORMANCE DATA
Rated pressure 350 bar [5000 psi]
Rated ow 90 l/min [24 US gpm]
Max total relief pressure 350 bar [5000 psi]
Max recommended load
pressure at max setting
270 bar [3900 psi]
Pilot Ratio 4:1, 8:1
Leakage 0.3 ml/min nominal [5 drops/min]
Weight 0.29 kg [0.63 lb]
Cavity A12336
Motion Control Valves
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 25 50 75 100
0 6.5 13 19.5 26
600
500
400
300
200
100
0
42
35
28
21
14
7
0
Free ow
Piloted open
62.0
(2.44)
max
54.0
(2.13)
Hex socket adjust
5.0 A/F
17.0 A/F
32.0 A/F
M27 x 1.5-6g
Pilot (3)
Valve (2)
Cyl (1)
1
33
2
8:1 Pilot Ratio
Turn CW to increase pressure setting and CCW to
decrease pressure setting.
Torque lock nut to 20-25 Nm [15-18 ft lbs]
Installation torque
60 Nm [44 ft. lbs]
4:1 Version
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 25 50 75 100
0 6.5 13 19.5 26
240
210
180
150
120
90
60
30
0
16
14
12
10
8
6
4
2
0
Free ow
Piloted open
BC479679931671en-000101
1CE90
Overcenter Valve, Standard, Direct Acting, Internal Drain, Port 3 Pilot
350 bar [5000 psi] • 90 l/min [24 US gpm]
SCHEMATIC
1CEE95 (dual)
DIMENSIONS
mm [in]
Motion Control Valves
MODEL CODE
1CE95 - F - 4W - 35 - S - 4 - 377 - 200
Pilot Ratio
4 - 4:1
8 - 8:1
Adjustment Option
F - External
N - Non-adjustable option, contact technical support.
Housing
Code Ports
Aluminum
single
Steel
single
Aluminum
dual
Steel
dual
Omit No housing
4W
1/2" BSP Valve &
Cyl Port 1/4" BSP
Pilot Port
B13625 B13626 C13627 C13628
8T
1/2" SAE Valve &
Cyl Port 1/4” SAE
Pilot Port
B10806 B10922 C10807 C11561
* Aluminum bodies are to be used for pressures less than 210 bar [3000 psi].
* Additional housings available
Pressure Range
Code Bar Psi
20 70-225 [1015-3260]
Standard Setting 100 [1450]
35 200-350 [2900-5000]
Standard Setting 210 [3000]
Std setting made at 4.5 L/min
Seal Option
Code Seal kit
S- Buna-N SK633
SV- Viton SK633V
C1
C2
V1 V2
76.2
(3.0)
36.0
(1.42)
19.0
(0.75)
38.1
(1.50)
58.0
(2.28)
40.5
(1.59)
86.5 (3.41)
139.0
(5.47)
max
107.0 (4.21)
127.0 (5.0)
2 holes Ø11.0 (0.43) thro’
V1
V2
C1
C2
10.0
(0.39)
Housing Material
Omit - Aluminum/No housing
377 - Steel
Basic Code
1CE90- No housing
1CE95- Cartridge and housing
1CEE95 - Cartridges and dual housing
Pressure Setting
Code Pressure setting in bar (10 bar increments
within specified Pressure Range)
XXX-Standard setting (see Pressure Range for value)
Example:
Code Bar Psi
200 200 [2900]
