Electro-Proportional Valves — Pressure Control

EHPR98-T38C — Proportional, Reducing / Relieving, Drop-in
  Selection guide - similar valves.
  PDF file of this page.
  Request a quote.

EHPR98-T38C Valve

EHPR98-T38C Valve symbol

A direct-acting, spool-type, proportional, drop-in-style, flange-mounted, pressure reducing/relieving valve, which can be infinitely adjusted across a prescribed range using a variable electric input. Pressure output is proportional to DC current input. The E-coil is an integral part of the valve assembly, and cannot be replaced or field-serviced.

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.

• Economical drop-in style.
• 1000-hour salt spray protection.
• Integral waterproof coil standard.
• Optional 142 micron screen at port 2.

Pressure Rating: 50 bar (725 psi)
Burst Pressure: 345 bar (5000 psi)ports 1 and 2 pressurized
Flow Rating: 30.3 lpm (8 gpm)
Max. Internal Leakage: Energized: 100 ml/min. (6 cu. in./min.) at 34.5 bar (500 psi) max;
   De-energized: 50 ml/min. (3 cu. in./min.) at 34.5 bar (500 psi)
Control Pressure at Max. Control Current: 23 bar (334 psi)
Max. Control Current: 1.38 amps for 10 VDC coil; 1.30 amps for 12 VDC coil;
   0.69 amps for 20 VDC coil; 0.65 amps for 24 VDC coil
Resistance: 4.3 ohm (10V), 5.2 ohm (12V), 17.5 ohm (20V), 20.9 ohm (24V)
Inductance: 80 mH (12V)
Hysteresis: 4% of maximum control pressure
Rated Flow: 18.9 lpm (5.0 gpm)
Cycle Life: Five million cycles
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 Air Temperature: -40° to 80°C (-40° to 176°F)
Environmental Rating: IP69K
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: Flange Mount
Mounting Screws: M4 x 12 Long; Part No. 4001015 (not provided with valve)
Cavity: VC-T011; See page 9.111.1
Cavity Tool: CT-T011R0-x-G; See page 8.600.1
Seal Kit: SKT011-N; SK-T011-V; See page 8.650.1

The EVDR Series controllers are recommended for use with most HydraForce proportional valves. These newer electronic controllers are versatile, reliable, and easily configured and customized for a wide range of applications. See the EVDR Product Selection Guide.
For other Electronic Controllers, see page 2.001.1_pdf




EHPR98-T38C Valve Performance Chart


EHPR98-T38B Valve Performance Chart


EHPR98-T38C Valve Performance Chart

EHPR98-T38C Valve Dimensions



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 magnetwire, with
zinc-nickel plated shell.

Ported Body: Consult Factory.

Mounting Screws: Must be ordered separately; Part no. 4001015



EHPR98-T38C Ordering Chart