DIRECTIONAL VALVES
PD10-40 Piloted 3-Way Spool, External Vent
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve for
three-way circuits requiring remote pilot actuation.
OPERATION
In neutral (unpiloted), the PD10-40 allows fl ow from ➂ to ➁ bidirectionally, while fl ow
is blocked at
➃. V is a spring chamber vent-to-atmosphere, which is internally O-ring
sealed from the cartridge fl ow paths.
On remote pilot signal at
➀, the valve shifts to open from ➂ to ➃,
while blocking fl ow at
➁.
Because of the vented spring chamber, the cartridge may be fully pressurized at any
port without affecting required pilot pressure.
FEATURES
• Hardened spool and cage for long life.
• Industry common 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:
To Spool Crossover: 7.6 bar (110 psi)
To Full Spool Shift: 8.6 bar (125 psi)
Oil Volume Required to Full Shift: 0.65 cc (0.04 cu. in.)
Temperature: -40 to 120°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: VC10-4; See page 9.110.1
Cavity Tool: CT10-4XX; See page 8.600.1
Seal Kit: SK10-4X-MMM; See page 8.650.1
Cap Vent Seal: 6003117
SYMBOLS
USASI:
PERFORMANCE (Cartridge Only)
4.340.1
8.6/125
6.9/100
5.2/75
3.4/50
1.7/25
7.5
2
15.1
4
30.2
8
FLOW lpm/gpm
PRESSURE DROP bar/psi
to or to
32 cSt/150 ssu oil at 40°C
37.9
10
22.7
6
➂➂➃➁
ISO:
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Note: This valve is designed with a dynamic oil-to-atmosphere seal in the
vent section. Ambient conditions will cause this vent seal to degrade which
will reduce the valve’s cycle life. If this could cause a problem, we suggest
that a non-vented model be selected. Consult factory for assistance.
Blue rectangles are links to other catalog pages.
DIMENSIONS
Cartridge: Weight: 0.16 kg. (0.35 lbs.)
Steel with hardened work surfaces;
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.34 kg. (0.75 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
PD10-40
4.340.2
PD10-40__ - __ __ __ - __ -__
Options
None
(Blank)
Open Transition N
Tall Cap T
Seals
N Buna N (Std.)
NS Buna N with Sealed Spool
(110 psi spring minimum required)
V Fluorocarbon
VS Fluorocarbon with Sealed Spool
(110 psi spring minimum required)
‡
T option required.
Cap Height: 2.21" (56.1 mm)
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
*BSP Body
U.K. Mfr. Only
†
Note: 110 psi bias spring is the
minimum required for use with
sealed spool.
Bias Spring
†
40 2.8 bar (40 psi)
60 4.1 bar (60 psi)
110 7.6 bar (110 psi)
130 9.1 bar (130 psi)
170 11.7 bar (170 psi)
M5.0 5.0 bar (73 psi)
‡
M14.0 14 bar (203 psi)
‡
M15.0 15 bar (217 psi)
®
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MATERIALS
Blue rectangles are links to other catalog pages.
