DIRECTIONAL VALVES
PE12-S67H Proportional, Pilot Operated
DESCRIPTION
A screw-in, cartridge-style, proportional, spring-centered, pilot-operated spool-type
hydraulic directional valve.
OPERATION
When the PE12-S67H is in neutral position port ➂ is blocked and ports ➁, ➃ and ➄
are in communication with each other. When the remote pilot signal at
➀ exceeds the
force of the bias spring, the spool shifts proportionally to the applied pilot pressure
to allow fl ow from
➂ to ➃, through a load such as a hydraulic cylinder or motor, and
from
➁ to ➄ and to tank. On remote pilot signal at ➅, the spool shifts proportionally to
the applied pressure in the opposite direction, thus reversing the fl ow direction. The
valve’s spool is symmetrical, providing meter-in and meter-out control.
FEATURES
• Hardened spool and cage for long life.
• Excellent metering characteristics.
• Good linearity.
RATINGS
Maximum Operating Pressure: Ports ➂ and ➄: 345 bar (5000 psi)
Ports
➁ and ➃: 240 bar (3500 psi)
Ports
➀ and ➅: 27.6 bar (400 psi)
Orifi ce Diameter: Between ports
➁ and ➃ and port ➄ in neutral position: 0.030 in.
Flow: See Performance Chart
Internal Leakage: 100 ml/minute (6 cu. in./minute) at 207 bar (3000 psi)
Temperature: -40 to 120°C with standard Buna N 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: VC12-S6; See page 9.112.1
Cavity Tool: CT12-S6; See page 8.600.1
Seal Kit: SK12-6X-BMMMM; See page 8.650.1
USASI:
ISO:
SYMBOLS
4.428.1
PERFORMANCE (Cartridge Only)
20.7/300
17.2/250
6.9/100
3.4/50
13.8/200
10.3/150
15.1
4
22.7
6
7.6
2
30.3
8
37.9
10
45.4
12
FLOW lpm/gpm
PRESSURE DROP bar/psi
➂ to ➁ - - - - ➂ to ➃ ——
➁ to ➄ or ➃ to ➄ – – –
32 cSt/150 sus oil at 40°C
Flow vs. Pilot Pressure
➂ to ➃ or ➀ to Pilot - - - -
➂ to ➁ or ➅ to Pilot ——
32 cSt/150 sus oil at 40°C
7.6/2
15.1/4
22.7/6
30.3/8
37.9/10
45.4/12
FLOW lpm/gpm
0
0
6.9
100
6.9
100
13.8
200
13.8
200
20.7
300
20.7
300
PILOT PRESSURE bar/psi
U.S. Patent
6,554,014
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
Cartridge: Weight: 0.98 kg. (0.45 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Ported Body: Test housing available.
See page 8.012.1
DIMENSIONS
MATERIALS
TO ORDER
PE12-S67H
4.428.2
PE12-S67H - __ - __
Seals
N Buna N (Std.)
P Polyurethane (for pressures over 240 bar/3500 psi)
V Fluorocarbon
Porting
Cartridge Only 0
INCH
MILLIMETRE
4.72
119.9
1.54
39.0
1.25
31.7
ACROSS
FLATS
TORQUE
33–37 ft-lbs
(44.7–50.2 Nm)
max.
U.S. Patent 6,554,014
®
HYDRAFORCE
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
