EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
Overview
Symbol
Description
The EHPR98-T38CX is a direct-acting, spool-type, proportional,
pressure reducing/relieving valve. It is a drop-in, flange mounted
cartridge type valve for use with mineral based or synthetic (with
lubricating properties) hydraulic fluids. The coil is an integral part of the
valve and is not serviceable. The regulated pressure is proportional to
the input electrical current in the pressure ranges shown
Operation
The EHPR98-T38C allows free flow from 1 to 3 when no current is
applied to the coil. When the coil is energized, 2 is connected to 1.
Increasing current applied to the coil will increase the control (reduced)
pressure proportionally. If pressure at 1 exceeds the setting induced by
the coil, pressure from 1 is relieved to 3
Features
Economical drop-in style.
❍
1000-hour salt spray protection.
❍
Integral waterproof coil standard.
❍
Optional 142 micron screen at port 2.
❍
Ratings
Pressure Ratings
Pressure rating
50.0 bar (725 psi)
Burst pressure
345 bar (5000 psi) - Note: Ports 1 and 2 pressurized
Flow Ratings
Flow rating
30.3 lpm (8 gpm)
Maximum internal leakage
50 ml/min (3 in³/min) - Note: At de-energized 34.5 bar (500 psi)
100 ml/min (6 in³/min) - Note: At energized at imax 34.5 bar (500 psi)
Hysteresis per cent
4 % - Note: Of maximum control pressure
Other Ratings
Cycle life
5 million cycles
Environmental rating
Ip69k
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
Temperature Ratings
Maximum operating fluid
temperature
-40 to 149 °C (-40 to 300 °F) - Note: With HNBR seals
-26 to 204 °C (-15 to 400 °F) - Note: With fluorocarbon seals
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 80 °C (-40 to 176 °F)
Operating Parameters
Fluids
Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating
contamination level
20/18/14 per ISO 4406
Properties
Cartridge weight
0.32 kg (0.70 lb)
Internal wetted surface area
179 cm²; (27.8 in²;)
Electrical Parameters
Maximum control current
1.38 A - Note: Coil 10 V
1.30 A - Note: Coil 12 V
0.69 A - Note: Coil 20 V
0.65 A - Note: Coil 24 V
Valve inductance
94 mH - Note: Coil 12 V
402 mH - Note: Coil 24 V
Performance
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
Dimensions
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
Materials
Materials
Cartridge including Coil: Weight: 0.32 kg (0.70 lb); Steel with hardened work surfaces. Zinc-plated exposed
surfaces; HNBR O-rings standard. Coil is encapsulated, class H high temperature magnet wire, with zinc-nickel plated
shell.
Ported Body: Consult Factory.
Mounting Screws: Must be ordered separately; Part no. 4001015
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
Installation Specifications
Cavity
VC-T011
Installation type
Flange mounted
Orientation restriction
None
Mounting screw torque
1.2 to 1.5 N-m (0.9 to 1.1 ft-lb)
Accessories
Mounting screw
M4 x 12, hf p/n: 4001015 (sold separately)
Valve body
Hf p/n 71570x0 (sold separately)
Seal kit
SK-T011-X - Note: X = seal option
Order code
POSITION CODE DESCRIPTION
EHPR98-T38CEG-H-J-KL
E Manual Override
E BLANK NONE
E M Minimum Regulated Pressure Override, 3/16" Internal Hex
G Screen
G BLANK NONE
G S 100 Mesh Screen
H Line Body
H 0 No Body
J Seal
J N Buna-N
J V Fluorocarbon
K Coil Voltage
K 10 10 VDC
K 12 12 VDC
K 20 20 VDC
K 24 24 VDC
L Coil Termination
L EJ E-Coil, AMP Jr.
L ER E-Coil, Deutsch
hydraforce.com
10/4/2020
EHPR98-T38C
EHPR98-
T38C
PROPORTIONAL PRESSURE REDUCING / RELIEVING
CARTRIDGE VALVE
L ER/Z E-Coil, Deutsch with Zener Diode
hydraforce.com
10/4/2020
EHPR98-T38C
