DIRECTIONAL VALVES
HPD42-M44 HyPerformance
TM
Piloted 2-Way Spool
DESCRIPTION
A high performance, screw-in, cartridge-style, pilot-operated, spool-type, hydraulic
directional valve for two-way circuits requiring remote pilot actuation and vented
spring chamber.
OPERATION
In neutral (unpiloted), the HPD42-M44 blocks flow from 2 to 3 and 3 to 2 on remote
pilot signal at port 1. The valve's spool shifts to allow flow from port 2 to 3 and port 3
to 2. The spring chamber is vented to port 4. Pressure at port 4 will directly (1:1) affect
the pilot pressure required and must be added to the bias spring value.
FEATURES
• Multiple function/application potential.
• Smooth shift transition.
• Low pressure drop.
• Hardened spool and cage for long life.
• Optional sealed pilot.
• Industry-standard ISO cavity.
• All HyPerformance products are tested to the rigorous standards of NFPA
specification T2.6.1.
• All HyPerformance products are tested at a verification level of 90% and an
assurance of 99%.
RATINGS
Operating Pressure: 350 bar (5075 psi); 10% cycle life: 420 bar (6090 psi)
Note: All HyPerformance products are tested for 900K cycles at 350 bar and 100K at
420 bar
Fatigue Rating: 2 million cycles at 420 bar
Burst Pressure: 1380 bar (20000 psi)
Flow: 265 lpm (70 gpm)
Internal Leakage: 310 ml/min (19 cu. in./minute) at 350 bar (5075 psi)
Pilot Pressure Required:
To Spool Crossover: 10.3 bar (150 psi) with 150 psi bias spring
To Full Spool Shift: 17.9 bar (260 psi) with 150 psi bias spring
Oil Volume Required to Full Shift: 6.22 cc (0.38 cu. in.)
Temperature: -54°C to 107°C (-65°F to 225°F) with standard PPDI Urethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: HVC42-M4 See page 9.142.1
Cavity Tool: HCT42-M4XX See page 8.600.1
Seal Kit: SK42-M4U-000 (Urethane) See page 8.650.1
SYMBOLS
PERFORMANCE
(Cartridge Only)
4.358.1
12.4/180
11.0/160
5.5/80
2.8/40
8.3/120
76
20
114
30
38
10
151
40
189
50
265
70
227
60
FLOW lpm/gpm
PRESSURE DROP bar/psi
2 to 3 Fully Open
32 cSt/150 sus oil at 40°C
1.4/20
4.1/60
6.9/100
9.6/140
3
2
1
4
HYDRAFORCE
.com
®
USASI: ISO:
Blue rectangles are links to other catalog pages.
Cartridge: Weight: 1.9 kg. (4.2 lbs.)
Steel with hardened work surfaces.
Zinc-nickel plated exposed surfaces.
PPDI urethane O-rings and
polyester elastomer back-ups
standard.
Ported Body: Weight: 10.68 kg
(23.56 lbs.) HyPerformance
TM
Ductile iron (code 'D') standard. PD
type. Rated to 345 bar (5000 psi).
DIMENSIONS
MATERIALS TO ORDER
HPD42-M44
4.358.2
HPD42-M44__- __ __ __ - __ -__
Porting
Cartridge Only 0
SAE 20 20TD
1-1/4" BSP* 10BD
Seals
*U PPDI Urethane (Standard)
*US PPDI Urethane with Sealed Spool
* Urethane seals recommended for operating
pressures above 241 bar (3500 psi)
Bias Spring
150 10.3 bar (150 psi)
®
HYDRAFORCE
HYDRAFORCE
.com
®
2
4
INCH
MILLIMETRE
1.99
ACROSS
M42 x 2.0 -6g
THREAD
FLATS
TORQUE -
290 – 310 ft-lbs
(393.1 – 420 Nm)
50.4
3
6.00
152.4
5.37
136.5
2.64
67.0
0.29
7.2
3.93
99.8
0.34
8.6
1.34
34.0
3.94
100.1
3.56
90.4
4.87
3
123.7
2
1
4
ORIFICE DISC CANNOT BE USED
WITH THIS VALVE
due to HyPerformance™ cavity.
1
4.00
101.6
2.00
50.8
2.25
57.1
4.50
114.3
*BSP body; U.K. mfr. Only
NOTE: All bodies are PD type.
Option
None
(Blank)
Blue rectangles are links to other catalog pages.
