DIRECTIONAL VALVES
PD42-M45 Piloted 2-Way Spool
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 PD42-M45 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 ➂ to ➁ bidirectionally.
Note that
➃ is common to the spring chamber. Pressure on ➃ will directly (1:1) affect
required pilot pressure and must always be added to the bias spring value.
FEATURES
• Hardened spool and cage for long life.
• Optional sealed pilot.
• Industry-standard ISO cavity.
RATINGS
Maximum Operating Pressure: With Polyurethane Seals: Ports ➀, ➁ & ➂:
344 bar (5000 psi); Port
➃: 210 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage: 246 ml/minute (15 cu. in./minute) max. at 344 bar (5000 psi)
Pilot Pressure Required:
To Spool Crossover: 13 bar (188 psi)
To Full Spool Shift: 17.2 to 27.6 bar (250 to 400 psi)
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: VC42-M4; See page 9.142.1
Cavity Tool: CT42-M4XX; See page 8.600.1
Seal Kit: SK42-4X-MMM; See page 8.650.1
USASI: ISO:
SYMBOLS
4.363.1
PERFORMANCE (Cartridge Only)
13.8/200
10.3/150
6.9/100
3.4/50
37.8
10
75.7
20
113.6
30
151.4
40
FLOW lpm/gpm
PRESSURE DROP bar/psi
189.3
50
227.1
60
265.0
70
to or to
32 cSt/150 ssu oil at 40°C
➂➁➁➂
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.