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%.

Ratings

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
Maximum 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)

Operating Parameters

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

Properties

Cartridge weight
1.9 kg (4.2 lb)
Internal wetted surface area
830 cm² (129 in²)

Performance

HPD42-S51_Chrt

Dimensions

HPD42-S51_Dim

Materials

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).

Installation Specifications

Cavity
Hvc42-s5
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

Accessories

Seal kit
Hsk42-s5n-bmmm Buna N
Hsk42-s5v-bmmm Fluorocarbon
Hsk42-s5u-oooo Urethane

Order code

POSITION
CODE
DESCRIPTION
HPD42-S51-H-J-R
H
Line 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
HPD42-S51_Order