DIRECTIONAL VALVES
HPD16-S50 HyPerformance
TM
Piloted 3-Way Spool
DESCRIPTION
A high pressure, screw-in, cartridge-style, pilot-operated, spool-type, hydraulic
directional valve.
OPERATION
When in neutral, the HPD16-S50 allows flow between ports 3 and 2 bidirectionally
while port 4 is blocked. On remote pilot signal at 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 at port
5. 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
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.
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow Rating: Up to 151 lpm (40 gpm) with PPDI urethane seals. Up to 114 lpm
(30 gpm) with sealed spool between ports 1 and 2 and restricted flow between
ports 2 and 3 up to 57 lpm (15 gpm) maximum.
Maximum Internal Leakage: 350 bar (5075 psi) at 32 cSt.
HPD16-S50:
Ports 3-4: 246 ml/min. (15 cu.in./min.)
Ports 3-2: 410 ml/min. (25 cu.in./min.) Pilot Pressure 350 bar (5075 psi)
HPD16-S50N:
Ports 3-4: 328 ml/min. (20 cu.in./min.)
Ports 3-2: 492 ml/min. (30 cu.in./min.) Pilot Pressure 350 bar (5075 psi)
Operating Temperature: -54° to 107°C (-65° to 225°F) with 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: HVC16-S5; See page 9.116.1
Cavity Tool: HCT16-S5XX; See page 8.600.1.
Seal Kit: HSK16-S5U-0000 (Urethane); See page 8.650.1.
SYMBOLS
PERFORMANCE
(Cartridge Only)
4.372.3
8.6/125
10.3/150
12.1/175
13.8/200
6.9/100
5.2/75
3.4/50
1.7/25
37.9
10
75.8
20
113.6
30
151.4
40
FLOW lpm/gpm
PRESSURE DROP bar/psi
3 to 2 - - - - -; 3 to 4 ———
32 cSt/150 sus oil at 40°C
ISO:
OPEN TRANSITION OPTION:
HYDRAFORCE
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Blue rectangles are links to other catalog pages.
Cartridge: Weight: 0.8 kg. (1.75 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
PPDI Urethane seals and no
back-up rings standard.
Ported Body: Weight: 8.09 kg
(17.79 lbs) HyPerformance™
Ductile iron (code 'D') standard.
Rated to 345 bar (5000 psi).
See page 8.016.1.
DIMENSIONS
MATERIALS TO ORDER
HPD16-S50
4.372.4
HPD16-S50 __ - __ __ __ - __ - __ __ __
Porting
Cartridge Only 0
3/4" BSP 6BD
1" BSP 8BD
SAE12 12TD
SAE 16 16 TD
Option
None Blank
Open Transition N
Bias Spring
150 10.3 bar (150 psi)
Optional bias springs considered
on OEM request.
Seals
U PPDI Urethane
US Sealed spool between ports 1 and 2
Note: PPDI Urethane seals are recommended
for pressures over 241 bar (3500 psi).
Note: Consult factory for additional seal
options.
4.79
121.7
1.52
38.5
INCH
MILLIMETRE
3.25
82.6
1.75
44.5
4.00
101.6
6.00
152.4
0.50
12.7
0.57
14.5
2.88
73.0
0.38
9.5
0.34/8.7 Dia. Mounting Holes (2)
5.63
142.9
3.00
76.2
1.63
41.3
2.00
50.8
4.00
101.6
ACROSS FLATS
1.55
39.2
TORQUE
220 to 230 ft-lbs
(298 to 312 Nm)
Ductile iron
body shown
ORIFICE DISC CANNOT
BE USED WITH THIS PRODUCT
due to HyPerformance
TM
Cavity.
®
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