Valves - Directional Controls - Piloted Proportional - 3-position 4-way - Asymmetrical meter-in spool

HPE42-S67K

PROPORTIONAL, PILOT OPERATED DIRECTIONAL VALVE U.S. PATENT NO. 6,554,014

Overview

Description

The HPE42-S67K is a high pressure, screw-in, cartridge-style, proportional, spring-centered spool, pilot-operated, hydraulic directional valve

Operation

In neutral position inlet port 3 is blocked and ports 2, 4 and 5 are connected to each other. On remote pilot signal at port 1 the spool shifts proportionally to the applied pilot pressure to allow flow from port 3 to 4, thru a load such as a hydraulic cylinder or motor, and from port 2 to 5 and to tank. Port 5 is to be used as tank port only with maximum pressure of 1000 psi [69 bar]. On remote pilot signal at port 6 the spool shifts proportionally to the applied force in the opposite direction, thus reversing the flow direction. The spool is non-symmetrical and provides only meter-in control

Features

  • Hardened spool and cage for long life.
  • Cost-effective cavity.
  • Excellent metering characteristics.
  • Good Linearity.
  • All HyPerformance products are tested to the rigorous standards of the NFPA specification T2.6.1 and are tested at a verification level of 90% and an assurance of 99%.
Pressure Ratings
Pressure rating:
  • 350 bar (5075 psi) Ports 2, 3, 4 (work)
  • 420 bar (6090 psi) (10% cycle life)
  • 35 bar (500 psi) Ports 1, 6 (pilot)
  • 69 bar (1000 psi) Port 5 (tank)
Proof pressure:
  • 690 bar (10000 psi)
Burst pressure:
  • 1380 bar (20000 psi)
Flow Ratings
Flow rating:
  • 170 lpm (45 gpm)
Maximum internal leakage:
  • 820 ml/min (50 in³/min) At 350 bar (5075 psi)
Other Ratings
Cycle life:
  • One million cycles
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 90 °C (-40 to 194 °F)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Displacement per stroke:
  • 3.46 cm³ (0.211 in³) per stroke direction
Unit weight:
  • 2.0 kg (4.5 lb)
Internal wetted surface area:
  • 1065 cm² (165 in²)
HPE42-S67K_Perf_Chrt1 HPE42-S67K_Perf_Chrt2
HPE42-S67K_Dim_Dwg

Materials

Cartridge: Weight: 2.0 kg. (4.5 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Urethane seals without back-ups standard.

Ported Body : Weight: 16.61 kg. (36.62 lbs.) H-series ductile iron standard. Rated to 345 bar (5000 psi).

Cavity:
Cartridge installation torque:
  • 394 to 420 N-m (290 to 310 ft-lb) Steel/ductile iron cavity
  • 298 to 311 N-m (220 to 230 ft-lb) Aluminum cavity
Orientation restriction:
  • None
Seal kit:
  • Hsk42-s6n-bmmmm Buna N
  • Hsk42-s6v-bmmmm Fluorocarbon
  • Hsk42-s6u-ooooo Urethane
HPE42-S67K_Order
POSITION
CODE
DESCRIPTION
HPE42-S67K-H-J
H
Line Body
H
0
No Body
H
20HT
Ductile Iron SAE 20
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
U
PPDI Urethane