DIRECTIONAL VALVES
PD10-50 Piloted 3-Way Spool
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve
which is open in transition, for three-way circuits requiring remote pilot operation.
OPERATION
In neutral (unpiloted), the PD10-50 allows fl ow from ➂ to ➁ bidirectionally, while fl ow
is blocked from
➂ to ➃. The spring chamber is vented to tank at port ➄, and is inter-
nally O-ring sealed from the cartridge fl ow paths.
On remote pilot signal at
➀, the valve shifts to block fl ow from ➂ to ➁, while opening
fl ow between
➂ and ➃ bidirectionally. Any pressure at port ➄ is added to the spring
value.
FEATURES
• Hardened spool and cage for long life.
• Cost-effective cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: See Performance Chart
Internal Leakage: 82 cc/minute (5 cu. in./minute) max. at 207 bar (3000 psi)
Pilot Pressure Required using 10.3 bar (150 psi) Spring:
To Spool Crossover: 10.3 bar (150 psi)
To Full Spool Shift: 12.2 bar (177 psi)
Oil Volume Required to Full Shift: 0.44 cc (0.027 cu. in.)
Temperature: -40 to 100°C with standard Buna 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: VC10-5; See page 9.110.1
Cavity Tool: CT10-5XX; See page 8.600.1
Seal Kit: SK10-5X-MMMM; See page 8.650.1
Cap Vent Seal: Part No. 6003117
SYMBOLS
ISO:
PERFORMANCE (Cartridge Only)
4.370.1
Open Transition:
5
4
3
2
1
HYDRAFORCE
.com
®
6.9/100
8.3/120
5.5/80
4.1/60
1.4/20
2.8/40
7.5
2
15.1
4
30.2
8
FLOW lpm/gpm
PRESSURE DROP bar/psi
37.9
10
22.7
6
to —— ; to - - - -
32 cSt/150 sus oil at 40nC
Blue rectangles are links to other catalog pages.
DIMENSIONS
Cartridge: Weight: 0.20 kg. (0.44 lbs.)
Steel with hardened work surfaces;
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.41 kg. (0.85 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.010.1
TO ORDER
PD10-50
4.370.2
PD10-50__ - __ __ __ - __ -__
Seals
N Buna N (Std.)
NS Buna N with Sealed Spool
V Fluorocarbon
VS Fluorocarbon with Sealed Spool
Bias Spring
100 6.9 bar (100 psi)
150 10.3 bar (150 psi)
230 15.9 bar (230 psi)
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
INCH
MILLIMETRE
1.17
29.7
1.00
25.4
ACROSS
FLATS
TORQUE:
25 ft-lbs (33.9 Nm)
max.
1.36
34.5
2.62
66.5
5.00
127
1.48
37.6
2.00
50.8
1.99
50.6
4.38
111.3
0.75
19.1
3.06
77.7
5
4
4
3
2
2
1
1
5
3
0.34
8.7
4.00
101.6
0.19
4.8
3.63
92.1
®
HYDRAFORCE
HYDRAFORCE
.com
®
MATERIALS
Option
None
(Blank)
Open Transition N
Blue rectangles are links to other catalog pages.
