Cartridge Valves - Electro-proportional Valves - Pressure Controls - Relief - Pilot Operated - Pressure Falling With Current

HTS38-34

PRESSURE REDUCING/RELIEVING PROPORTIONAL VALVE

Overview

Description

The HTS38-34X is a screw-in, cartridge style, direct-operated, spool-type, proportional pressure reducing/relieving valve which can be infinitely adjusted across a predescribed range using a variable electric input. The regulated pressure is proportional to the input electrical current applied to the valve coil.

Operation

The HTS38-34X allows flow from port 1 to port 3 when no current is applied to the coilt. With coil energized, port 2 is connected to port 1. increasing current to the coil will increase the control (reduced) pressure at port 1 proportionally. If pressure at port 1 exceeds the setting induced by the coil, pressure from port 1 is relieved to port 3. Pressure at port 3 is additive to the control pressure.

Features

  • 350 bar (5075) inlet rating
  • Up to 152 bar(2200 psi) controlled pressure at maximum current
  • Three pressure ranges
  • 19 lpm (5 gpm) flow capacity
  • High flow rating
  • Direct acting for fast response and low leakage
  • Corrosion-resistant plating
Pressure Ratings
Pressure rating:
  • 350 bar (5075 psi) Port 2
  • 350 bar (5075 psi) Port 2
  • 207 bar (3000 psi) Port 1
Proof pressure:
  • 69 bar (1000 psi)
Burst pressure:
  • 1241 bar (18,000 psi)
Control pressure at maximum current:
  • 152 bar (2200 psi) Range A
  • 75 bar (1085 psi) Range B
  • 48 bar (690 psi) Range C
Flow Ratings
Flow rating:
  • 18.9 lpm (5 gpm)
Maximum de-energized leakage:
  • 95 ml/min (5.8 in³/min) With inlet pressure of 210 bar [3045 psi] at deadheaded condition.
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With /buna-n seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With urethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 65 °C (-40 to 149 °F)
Other Ratings
Cycle life:
  • 3 million cycles
Fluids:
  • Mineral based or synthetic with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.19 kg (0.41 lb) without coil
Internal wetted surface area:
  • 166 cm² (25.7 in²)
HTS38-34_table(2025-02-27)
Recommended Drivers
Dither frequency:
  • 130 Hz
PWM frequency:
  • 130 Hz

all tests done in lab with Mobil DTE24 32 cSt @ 40 °C (104 °F)

HTS38-34_perf1(2025-02-27) HTS38-34_perf2(2025-02-27) HTS38-34_perf3(2025-02-27) HTS38-34_perf4(2025-02-27) HTS38-34_perf5(2025-02-27) HTS38-34_perf6(2025-02-27) HTS38-34_perf7(2025-02-27) HTS38-34_perf8(2025-02-27) HTS38-34_perf9(2025-02-27) HTS38-34_perf10(2025-02-27) HTS38-34_perf11(2025-02-27) HTS38-34_perf12(2025-02-27) HTS38-34_perf13(2025-02-27)
HTS38-34_dim(2025-02-27)
Cavity:
Cartridge installation torque:
  • 54 to 61 N-m (40 to 45 ft-lb)
Coil nut torque:
  • 9.5 to 13.6 N-m (7 to 10 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-S3X-OO (x = N, U seal option)
  • V seal option)
  • SK08-3V-BT V seal option
HTS38-34_order(2025-02-28)

Model Options

HTS38-34D-H-J-L
D Maximum Regulated Pressure
CODE
DESCRIPTION
A
152 bar (2200 psi)
B
75 bar (1085 psi)
C
48 bar (690 psi)
H Line Body
CODE
DESCRIPTION
0
No Body
8HT
Ductile Iron SAE 8
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
U
PPDI Urethane
L Coil
CODE
DESCRIPTION
0
No Coil
10EL
10 VDC, E-Coil, Dual Lead Wires, 18 inches long
10ER
10 VDC, E-Coil, Deutsch
20EL
20 VDC, E-Coil, Dual Lead Wires, 18 inches long
20ER
20 VDC, E-Coil, Deutsch