Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 K-480.A

An Eaton Brand

Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.

1CEOMS95/1CEEOMS95 - Motor Mounted Valves

OMS Mounting Pattern Single and Dual Overcenter Valves

Operation

The check section allows

free flow into the actuator

then holds and locks the load

against movement. The pilot

assisted relief valve section

will give controlled movement

when pilot pressure is applied.

The relief section is normally

set to open at a pressure at

least 1.3 times the maximum

load induced pressure but the

pressure required to open the

valve and allow movement

depends on the pilot ratio of

the valve. For optimization

of load control and energy

usage, a choice of pilot ratios

is available.

The pressure required to open

the valve and start actuator

movement can be calculated

as follows:

Pilot Pressure =

(Relief Setting) - (Load Pressure)

Pilot Ratio

Description

Overcenter valves give

static and dynamic control

of loads by regulating the

flow into and out of hydraulic

actuators. When installed

close to or within an actuator,

the overcenter valve will

stop runaway in the event

of hose burst and if open

center directional control

valves are used, will allow

thermal expansion relief of

the hydraulic fluid.

The overcenter cartridge is

ideal for mounting directly

into a cavity machined in the

body of the cylinder, motor or

rotary actuator. The cartridge

can also be mounted directly

to the ports via a specifically

machined body as part of a

Hydraulic Integrated Circuit

or single unit, or contained

within one of our standard

line bodies.

Single overcenter valves are

normally used when the load

is unidirectional, for example

an aerial platform or crane

and dual overcenter valves

are used for controlling loads

in both directional for motor

applications or for cylinders

going over center.

Pilot Ratios

4:1 Best suited for

applications where load

varies and machine

structure can induce

instability

8:1 Best suited for

applications where the

load remains relatively

constant.

Other ratios available

upon request

1CEOMS95-1 1CEOMS95-2

1CEEOMS95

Ratings and Specifications

Figures based on: Oil Temp = 40°C Viscosity = 32 cSt (150 SUS)

Rated flow 90 L/min (23 USgpm)

Max setting Max load induced

Pressure: 270 bar (4000 psi)

Relief setting: 350 bar (5000 psi)

Cartridge material Working parts hardened & ground steel

External surface zinc plated

Body material Standard aluminium (up to 210 bar*)

Add suffix '377' for steel option

Mounting position Unrestricted

Cavity Number A12336 (See section M)

Torque cartridge into cavity 60 Nm (44 ibs ft)

Weight 1CEOMS95 2.16 kg (4.75 lbs)

(inc cartridges) 1CEEOMS95 2.26 kg (4.97 lbs)

Seal kit number 1CEOMS95 SK1282 (Nitrile) SK1282V (Viton)

1CEEOMS95 SK795 (Nitrile) SK795V (Viton)

Recommended filtration level BS5540/4 Class 18/13 (25 micron nominal)

Operating Temp -30°C to +90°C (-22° to 194°F)

Leakage 0.3 milliL/min nominal (5 dpm)

Nominal viscosity range 5 to 500 cSt

Performance Data

CT1

CT2

CT1

CT2

EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 K-481.A

An Eaton Brand

Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.

Pressure Drop

1CEOMS95/1CEEOMS95 - Motor Mounted Valves

OMS Mounting Pattern Single and Dual Overcenter Valves

4:1 Version

Cavity plug part number

Nitrile

AXP14434-02-N

Viton

AXP14434-02-V

Model Code

1CE*OMS95-* F 4W 35 S 4 BK

1 2 3 4 5 6 7

1 Basic Code

1CEEOMS95 - Double

Cartridge and Body

1CEOMS95-1 - Single

overcenter in line V1-M1

1CEOMS95-2 - Single

overcenter in line V2-M2

2 Adjustment Means

F - Screw Adjustment

6 Pilot Ratio

4 - 4:1

8 - 8:1

7 Mounting

BK - Bolt Kit

4 Pressure Range

Note: Code based on pressure

in bar.

20 - 70-225 bar.

Std setting 100 bar

35 - 200-350 bar.

Std setting 210 bar

Std setting made at 4.8 L/min

* Cartridges must not be adjusted above

the safe working pressure of the motor

5 Seals

S - Nitrile

(For use with most industrial

hydraulic oils)

SV - Viton

(For high temperature and

most special uid applications)

Code V1 & V2 Brake Housing Number

4W 1/2" BSPP 1/4" BSPP BXP24055-4W-S

3 Port Size

– –

35.00

(1.38)

42.00

(1.65)

90.00 (3.54)

21.00

(0.82)

32.00

(1.26)

127.00

(5.00)

62.0

(2.44)

approx

62.00 (2.44)

66.00 (2.60)

24.00

(0.94)

91.00

(3.58)

2 overcentre valves

1CE90-F**-*-*

CT2 CT1

V1 V2

Complete Valve 1/2" Ports

Basic Code: 1CEEOMS95

Dimensions

mm (inch)

Check motor mounting

compatibility before

specifying.

Tightening torque of “F”

adjuster locknut - 20 to 25 Nm

Note: For applications over

210 bar (3000 psi), please con-

sult our technical department

or use the steel body option.

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

Free ow

Piloted open