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

EHPR98-G38HD

PROPORTIONAL PRESSURE REDUCING / RELIEVING CARTRIDGE VALVE

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Overview

Description

The EHPR98-G38HDX is a direct-acting, spool-type, proportional, pressure reducing relieving valve. It is a 3rd generation hydraforce 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.

Features

  • Economical drop-in style
  • Mounting plate option
  • Several regulated pressure ranges
  • Retrofit option for EHPR98-T38
  • Quick response time
  • Screen option
  • Top-mounted connector
  • Low leakage
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi) Port 2
  • 75.8 bar (1100 psi) Port 1
  • 34.5 bar (500 psi) Port 3
Proof pressure:
  • 345 bar (5000 psi) Ports 1, 2 pressurized
  • 54 bar (780 psi) Port 3
Burst pressure:
  • 380 bar (5500 psi) Ports 1, 2 pressurized
  • 250 bar (3625 psi) Port 3
Control pressure at maximum control current:
  • 59 bar (855 psi) EHPR98-G38HD
Flow Ratings
Flow rating:
  • 19 lpm (5 gpm)
Maximum internal leakage:
  • 100 ml/min (6 in³/min) At 241 bar (3500 psi) de-energized
Other Ratings
Cycle life:
  • 1 million cycles
Environmental rating:
  • IP69K
Corrosion protection:
  • 960 hour salt spray per ASTM B117
Temperature Ratings
Operating fluid temperature:
  • -40 to 149 °C (-40 to 300 °F) HNBR
  • -26 to 204 °C (-15 to 400 °F) Fluorocarbon
Storage temperature:
  • -40 to 70 °C (-40 to 158 °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
Unit weight:
  • 0.27 kg (0.60 lb)
Internal wetted surface area:
  • 148 cm² (23.0 in²)
Maximum control current:
  • 1.44 A At 12 V
  • 0.720 A At 24 V
Coil resistance:
  • 4.83 ohm 12 V coil
  • 18.35 ohm 24 V coil
Valve inductance:
  • 77 mH 12 V coil
  • 301 mH 24 V coil
Hysteresis:
  • 4 % At 130 Hz PWM
EHPR98-G38HD_Perf1(2022-02-24) EHPR98-G38HD_Perf2(2022-02-24) EHPR98-G38HD_Perf3(2022-02-24)
EHPR98-G38HD_Dim(2022-02-24)
Cavity:
  • VC-G028 Standard configuration
Installation type:
  • Flange mounted
Orientation restriction:
  • None
Mounting screw torque:
  • 3 to 4 N-m (2.2 to 3.0 ft-lb)
Note:
  • For retro-fitting into older drop-in cavities and other mounting options, see "Mounting-options-for-G3-valves" technical reference
Mounting plate:
  • HF P/N 4595096 Use with standard VC-G028 cavity
  • HF P/N 4210226 Use with retrofit VC-T011 cavity
Mounting screw:
  • M5 x 0,8 x 12 mm long, HF P/N: 4002609 (sold separately) Use with standard VC-G028 cavity
  • M4 x 00.7 x 12 mm long, HF P/N: 4001015 (sold separately) Use with retrofit VC-T011 cavity
Seal kit:
  • SK-G028-X X=seal option
Ported test body:
  • HF P/N: 71612X0
EHPR98-G38HD_Order(2022-02-24)

Model Options

EHPR98-G38HDG-H-J-KL-U
G Screen
CODE
DESCRIPTION
BLANK
NONE
S
100 Mesh Screen
H Line Body
CODE
DESCRIPTION
0
No Body
J Seal
CODE
DESCRIPTION
G
HNBR (Hydrogenated Nitrile Butadiene Rubber)
V
Fluorocarbon
P
Polyurethane
K Coil Voltage
CODE
DESCRIPTION
10
10 VDC
12
12 VDC
14
14 VDC
20
20 VDC
24
24 VDC
28
28 VDC
L Coil Termination
CODE
DESCRIPTION
EJ
E-Coil, AMP Jr.
ER
E-Coil, Deutsch
EY2A
E-Coil, Metri-Pack 150.2
U Mounting Plate
CODE
DESCRIPTION
BLANK
None
G
Standard Single Valve Plate
T
Retro-Fit Plate

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