DIRECTIONAL VALVES
PD10-45 Piloted 2-Way Spool
DESCRIPTION
A 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 PD10-45 allows fl ow from ➂ to ➁ bidirectionally.
The spring chamber is directed to port
➃.
On remote pilot signal at
➀, the valve shifts to block from ➂ to ➁, bidirectionally.
Since
➃ is common to the spring chamber, pressure on ➃ will directly (1:1) affect the
pilot pressure required, and must always be added to the bias spring value.
FEATURES
• Hardened spool and cage for long life.
• Industry common cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow: See Performance Chart
Internal Leakage: at 207 bar (3000 psi) and 38° C (100° F):
From
➂ to ➁ and ➃: 82 cc/minute (5 cu. in./minute) max.
From
➀ to ➁: 164 cc/minute (10 cu. in./minute) max.
Pilot Pressure Required:
To Spool Crossover: 4.1 bar (60 psi) Spring: 4.7 bar (68.2 psi)
7.6 bar (110 psi) Spring: 7.6 bar (110 psi)
To Full Spool Shift: 4.1 bar (60 psi) Spring: 5.2 bar (75 psi)
7.6 bar (110 psi) Spring: 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
USASI:
ISO:
SYMBOLS
PERFORMANCE (Cartridge Only)
4.360.1
8.3/120
6.2/90
4.1/60
2.1/30
7.5
2
15.1
4
30.2
8
FLOW lpm/gpm
PRESSURE DROP bar/psi
37.9
10
45.5
12
22.7
6
to or to
32 cSt/150 ssu oil at 40°C
➂➁➁➂
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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.
DIMENSIONS
MATERIALS
TO ORDER
PD10-45
4.360.2
Bias Spring
†
60 4.1 bar (60 psi)
110 7.6 bar (110 psi)
170 11.7 bar (170 psi)
PD10-45 - __ __ __ - __ -__ __ __
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
Seals
Buna N (Std.) N
Buna N with Sealed Spool NS
Fluorocarbon V
Fluorocarbon with Sealed Spool VS
†
Note: 110 psi bias spring is the
minimum required for use with
sealed spool.
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