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518, 526 series0 pages
®
Microtorque Valvet
"PRESSURE"
PORT
"CYL.1" PORT
Features
t
t
t
t
t
t
Valves
1.062
(27)
E
518, 526 Series
1.125
(29)
"PRESSURE"
PORT
F
"CYL.2" PORT
"CYL.2" PORT
.562 (14)
Original Shear-Seal® technology
Compact design
Non-interflow option
Spring return option
Multiple handle types
2 or 3 position detent
REGULAR (SIDE) PORTING
t Work holding clamps and systems
1.125
1.062
PORT
"PRESSURE"
(29)
(27)
t "CYL.1" PORT
Hydraulic presses and lifting systems
"CYL.2" PORT
PORT
"CYL.2"
t Hydraulic test equipment PORT
t Grease injection equipment
t Hydraulic power units
"PRESSURE"
PORT
.562 (14)
1.0
(25)
"CYL.1" PORT
"RETURN" PORT
General Specifications*
Media:
1.220
.562 (14)
(31.0)
Hydraulic oil
REGULAR (SIDE) PORTING
Working Pressure:
6,000 psi (415
Flow Capacity, Cv:
See table
"RETURN" PORT
Proof Pressure:
Detent: ø 1.250
2-position: (31.8)
2-1/2 times working pressure except
(32.5)
.410
(10.4) .640
at return port
(16.3)
1.260
(32.5)
Media Temperature
Range:
"CYL.1" PORT -40° to +250°F (-40° to +121°C)
.206 THRU (5.2)
Porting:
.345
(8.8)
4 PLACES
1/4” NPT, SAE for 1/4” tubing, or DO3
.690
pattern for manifold mounting
(17.5)
"RETURN" PORT
Panel Mounting:
MANIFOLD PORTING
Panel mountingSpec) (-P option)
(Mounting per DO3 nut
Manifold Mounting:
3-position:
.690
A
Detent at 90° positions
Return:
B
P
Shaft, Rotor, Pressure
Seals:
400 series stainless steel
Standard O-Rings:
Buna N, others available
CLOSED CENTER MANIPULATOR
Back-up Rings:
PTFE
Bearings:
Hardened steel
RET
.95 lbs
Q
PRESS
PRESS
RET
K
OPEN (TANDEM) CENTER
PRESS
0.40
1
2
1
P
1
P
R
CYL 1
RET
RET
2
RET
PRESS
CYL 1 CYL 2
CYL 1 CYL 2
R
CLOSED CENTER
CYL 1
CYL 1 CYL 2
CYL 1 CYL 2
RET
R
PRESS
PRESS
PRESS
PRESS
RET
R
CLOSED CENTER
OPEN (TANDEM) CENTER
CYL 2
1
P
RET
CYL 2
PRESS
0.09
2
1
P
RET
RET
CYL 1
CYL 1 CYL 2
RET
Cv
Factor
CYL 1
CYL 1 CYL 2
CYL 1 CYL 2
PRESS
CYL 1 CYL 2
2
PRESS
PRESS
PRESS
RET
0.086"
1
MANIFOLD PORTING
P
R
CYL 2
0.72 (2.7)
CYL 1
RET
2
L
ø 1.250
(31.8)
PRESS
0.36 (1.4)
M
CYL 1 CYL 2
RET
0.17"
PRESS
CYL 1 CYL 2
CYL 2
CLOSED CENTER MANIPULATOR
2.8 (11)
Q
Anodized aluminum
CYL 2
Min. Flow
Passage Dia.
K
Available to center or either
J
ø 1.250
shifted position (4 PLACES)
(31.8)
5,000 psi (345 bar) max working
pressure on spring return option
* See product configurator for additional options.
** Consult factory for pressure up to 10,000 psi (690 bar)
*** For requirements in excess of 250 psi (17.2 bar) at return port consult factory
1.4 (5.6)
L
Detents at center and 2 extreme
Regular
positions and Straight Porting
90°; 45° each side of center position
Flow Capacity (Approx.)
20 ft/sec
40 ft/sec
(6.1 m/s)
(12.2 m/s)
gpm (l/min)
gpm (l/min)
.250
(7)
MAX. PANEL
THICKNESS
Body & Housing:
A
ISO 4401-03 mounting pad
DO3 Manifold mounting shipped with
(4) #10-24 screws and O-Rings
Handle Rotation:
P
Shipping Weight:
1.260
.610
(15.9)
Q
.206 THRU (5.2)
4 PLACES
.345
(8.8)
1-1/2 times working .820 (20.8)
pressure except
at return port
1.220
Burst Pressure: (31.0)
PANEL CUTOUT
H
B
.640
(16.3)
(17.5)
Ø.16 X .16 DEEP
1.594
Must not exceed 250 psi (17.2
(40.5)
"PRESSURE"
bar)*** at return port for "CYL.2" PORT
satisfactory MANIFOLD PORTING
Optional Spring
(Mounting per DO3 Spec)
PORT
.850
.450
operation (11.4)
(21.6)
Back Pressure:
G
1.437
(37)
.820 (20.8)
.410
(10.4)
M
PANEL
ø 1.250
(31.8)
Regular
"CYL.2" PORT
D
"RETURN" PORT
STRAIGHT (BOTTOM) PORTING
bar) **
"CYL.1" PORT
Q
Ø.16 X .16 DEEP
C
PA
H
.562 (14)
STRAIGHT (BOTTOM) PORTING J
E
(4 PLACES)
F
1.594
(40.5)
1.125
.850
.450
(29)
(21.6)
(11.4)
.610
(15.9)
D
"RETURN" PORT
"CYL.1" PORT
"RETURN" PORT
G
C
1.125
(29)
1.0
(25)
Applications
"PRESSURE"
518 Series
Interflow
526 Series
Non-Interflow
J
"
