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

HPD42-S50

PILOTED DIRECTIONAL VALVE

Overview

Description

The HPD42-S50 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 3 and 2 bidirectionally while port 4 is blocked. On remote pilot signal at port 1 the valve's spool shifts to block port 2 while opening flow between ports 3 and 4 bidirectionally. 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.
  • All HyPerformance valves 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) Seal option n/v/u
246 lpm (65 gpm) Seal option ns/vs/us
114 lpm (30 gpm) Seal option ns/vs/us, direction 2-3 maximum
Maximum internal leakage
328 ml/min (20 in³/min) HPD42-S50, flow-path 3-4, at and 350 bar (5075 psi) 32 cSt
492 ml/min (30 in³/min) HPD42-S50, flow-path 3-2, at pilot pressure 350 bar (5075 psi) 350 bar (5075 psi)
410 ml/min (25 in³/min) Hpd42-s50n, flow-path 3-4 at 350 bar (5075 psi)
655 ml/min (40 in³/min) HPD42-S50, flow-path 3-2, at pilot pressure 350 bar (5075 psi) 350 bar (5075 psi)
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-S50_Perf_Chrt

Dimensions

HPD42-S50_Dim_Dwg

Materials

Materials

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

Ported Body : Weight: 14.0 kg. (30.9 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-S50B-H-J-R
B
Spool Option
B
BLANK
Standard
B
N
Normally Open in Transition
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-S50_Order