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Valves - Electro-proportional Controls - Pressure Controls - Proportional Pressure Reducing/Relieving - Direct Acting - Pressure Rising with Current - Drop-in

EHPR98-T38

PROPORTIONAL PRESSURE REDUCING / RELIEVING CARTRIDGE VALVE

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Overview

Description

This 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 an is not serviceable. The regulated pressure is proportional to the input electrical current in the pressure ranges shown.

Manual Override Operation

Rotate manual override screw clockwise until desired regulated pressure is achieved.

Features

  • 10, 12, 20 or 24 VDC coils.
  • 960 hour salt spray protection.
  • Economical drop-in style.
  • Several push-on termination options.
  • Integral waterproof coil standard.
  • Optional 142 micron screen at port 2.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi) Port 2
  • 34.5 bar (500 psi) Port 3
  • 17.2 bar (250 psi) Port 3 - for manual override option
Burst pressure:
  • 345 bar (5000 psi) Ports 1 and 2 pressurized
Control pressure at maximum control current:
  • 30 bar (500 psi)
Flow Ratings
Flow rating:
  • 18.9 lpm (5.0 gpm)
Maximum internal leakage:
  • 50 ml/min (3 in³/min) De-energized, at 34.5 bar (500 psi)
  • 100 ml/min (6 in³/min) Energized at imax, 34.5 bar (500 psi)
Hysteresis per cent:
  • 5 % Of maximum control pressure ( PWM) 100 Hz
Other Ratings
Cycle life:
  • One million cycles
Environmental rating:
  • Ip69k
Temperature Ratings
Operating fluid temperature:
  • -40 to 149 °C (-40 to 300 °F) With HNBR seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 80 °C (-40 to 176 °F)
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
Unit weight:
  • 0.32 kg (0.70 lb)
Internal wetted surface area:
  • 173 cm² (26.8 in²) EHPR98-T38
  • 203 cm² (31.4 in²) EHPR98-T38M
Maximum control current:
  • 1.38 A (coil) 10 V
  • 1.30 A (coil) 12 V
  • 0.69 A (coil) 20 V
  • 0.65 A (coil) 24 V
Valve inductance:
  • 80 mH
EHPR98-T38_Perf_Chrt1(2022-02-24) EHPR98-T38_Perf_Chrt2(2022-02-24) EHPR98-T38_Perf_Chrt3(2022-02-24)
EHPR98-T38_Dim_Dwg(2022-02-24)
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)
Mounting screw:
  • M4 x 12, hf p/n: 4001015 (sold separately)
Valve body:
  • Hf p/n 71570x0 (sold separately)
Seal kit:
  • SK-T011-X X = seal option
EHPR98-T38_Order(2022-02-24)
POSITION
CODE
DESCRIPTION
EHPR98-T38EG-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

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