Valves - Directional Controls - Piloted Directional Valve - 2-position 3-way

HPD42-S51

PILOTED DIRECTIONAL VALVE

Overview

Description

The HPD42-S51 is a high pressure, spool type, screw-in, cartridge style, pilot operated, hydraulic directional valve

Operation

In the neutral position flow is allowed between ports 2, 3 and 4. On remote pilot signal at port 1 the valve's spool shifts to block all ports. The spring chamber is vented to the tank through port 5. The vented spring chamber allows the valve to be fully pressurized at ports 1, 2, 3 and 4 without affecting required pilot pressure. Pressure at port 5 will increase the required pilot pressure at a 1:1 ratio

Features

  • Hardened spool and cage for long life.
  • 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)
  • 420 bar (6090 psi) 10% cycle life
Proof pressure:
  • 690 bar (10000 psi)
Burst pressure:
  • 1380 bar (20000 psi)
Flow Ratings
Flow rating:
  • 265 lpm (70 gpm) Maximum total input flow, seal option n/v/u
  • 246 lpm (65 gpm) Maximum total input flow, seal option ns/vs/us
  • 114 lpm (30 gpm) Flow restricted direction 2-3 and 3-4, seal option ns/vs/us, maximum
Maximum internal leakage:
  • 328 ml/min (20 in³/min) Direction 3-4, at 350 bar (5075 psi) 32 cSt
  • 492 ml/min (30 in³/min) Direction 3-2, at and 350 bar (5075 psi) 32 cSt
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
Unit weight:
  • 1.9 kg (4.2 lb)
Internal wetted surface area:
  • 830 cm² (129 in²)
HPD42-S51_Chrt
HPD42-S51_Dim

Materials

Cartridge: Weight: 1.9 kg. (4.2 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; PPDI Urethane seals with no back-ups standard.

Ported Body : Weight: 14.0 kg (30.90 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-s5n-bmmm Buna N
  • Hsk42-s5v-bmmm Fluorocarbon
  • Hsk42-s5u-oooo Urethane
HPD42-S51_Order
POSITION
CODE
DESCRIPTION
HPD42-S51-H-J-R
H
Line Body
H
0
No Body
J
Seal
J
N
Buna-N
J
NS
Buna-N with a Sealed Spool
J
V
Fluorocarbon
J
VS
Fluorocarbon with a Sealed Spool
J
U
PPDI Urethane
J
US
PPDI Urethane with a Sealed Spool
R
Spring
R
160
160 psi Bias Spring