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

EHPR98-G33

PROPORTIONAL PRESSURE REDUCING / RELIEVING CARTRIDGE VALVE

Overview

Description

The ehpr98-g33xx 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.
  • Compact size.
  • Retrofit option for EHPR98-T33.
  • Quick response time.
  • Inlet screen and pressure options.
  • Top-mounted connector.
  • Low leakage.

Ratings

Pressure Ratings
Pressure rating
103 bar (1500 psi) Port 2
45 bar (650 psi) Ports 1, 3
Proof pressure
54 bar (780 psi) Port 3
345 bar (5000 psi) Ports 1, 2
Burst pressure
258 bar (3750 psi) All ports pressurized
Control pressure at maximum control current
30 bar (435 psi)
Flow Ratings
Flow rating
3.8 lpm (1.0 gpm)
Maximum internal leakage
60 ml/min (3.6 in³/min) At 34.5 bar (500 psi)
Hysteresis per cent
4 %
Other Ratings
Cycle life
10 million cycles
Environmental rating
Ip69k
Corrosion protection
1000 hour salt spray per ASTM b117
Temperature Ratings
Maximum operating fluid temperature
-40 to 149 °C (-40 to 300 °F) HNBR
-26 to 204 °C (-15 to 400 °F) Fluorocarbon
-54 to 107 °C (-65 to 225 °F) Polyurethane
Storage temperature
-40 to 70 °C (-40 to 158 °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

Properties

Cartridge weight
0.26 kg (0.57 lb)
Internal wetted surface area
90 cm² (14 in²)

Electrical Parameters

Maximum control current
1.130 A Coil 10 V
0.940 A Coil 12 V
0.780 A Coil 14 V
0.565 A Coil 20 V
0.470 A Coil 24 V
0.390 A Coil 28 V
Valve inductance
68 mH 10 V coil
104 mH 12 V coil
152 mH 14 V coil
284 mH 20 V coil
433 mH 24 V coil
645 mH 28 V coil

Performance

EHPR98-G33_Perf_Chrt1 EHPR98-G33_Perf_Chrt3 EHPR98-G33_Perf_Chrt4 EHPR98-G33_Perf_Chrt2

Dimensions

EHPR98-G33_Dim_Dwg

Materials

Materials

Cartridge Including Coil: Weight: 0.26 kg. (0.57 lbs.) Steel with hardened work surfaces. Zinc-nickel plated exposed surfaces. HNBR seals standard. Coil is encapsulated, Class N high-temperature magnet wire, with zinc-nickel plated shell.

Ported Test Body: Part No. 71611X0

Mounting Screws: Must be ordered separately; M5 x 0.8 x 12 mm Long, Part No. 4002609 (with standard VC-G027 cavity); M4 x 0.7 x 12 Long; Part No. 4001015 (with retrofit application VC-T009 cavity).

Installation Specifications

Cavity
VC-G027
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 "g3_mounting_options" technical reference

Accessories

Mounting plate
Hf p/n 4595096
Mounting screw
M5 x 0,8 x 12 mm long, hf p/n: 4002609 (sold separately)
Valve body
Hf p/n 71611x0 (sold separately)
Seal kit
SK-G027-X X=seal option

Order code

POSITION
CODE
DESCRIPTION
EHPR98-G33G-H-J-KL
G
Screen
G
BLANK
NONE
G
S
100 Mesh Screen
H
Line Body
H
0
No Body
J
Seal
J
G
HBNR (Hydrogenated Nitrile Butadiene Rubber)
J
V
Fluorocarbon
J
P
Polyurethane
K
Coil Voltage
K
10
10 VDC
K
12
12 VDC
K
14
14 VDC
K
20
20 VDC
K
24
24 VDC
K
28
28 VDC
L
Coil Termination
L
EJ
E-Coil, AMP Jr.
L
EJ/Z
E-Coil, AMP Jr. with Zener Diode
L
ER
E-Coil, Deutsch
L
ER/Z
E-Coil, Deutsch with Zener Diode
L
EY2A
E-Coil, Metri-Pack 150.2
L
EY2A/Z
E-Coil, Metri-Pack 150.2 with Zener Diode
EHPR98-G33_Order