Specifications
General specifications
Design
Axial piston pump of trunion swashplate design with variable displacement
Direction of rotation
Clockwise, counter-clockwise
Port connections
Main pressure ports: SAE straight thread O-ring boss
Recommended installation
position
Pump installation recommended with control position on the bottom or side.
Consult Danfoss for non conformance to these guidelines. The housing must always
be filled with hydraulic fluid.
Physical properties
Displacement
Feature
Unit
25
30
35
Maximum displacement
cm³ [in³]
25 [1.53]
30 [1.83]
35 [2.14]
Flow at rated speed (theoretical)
l/min
[US gal/min]
85.2
[22.5]
104.9
[27.7]
137.0
[36.2]
Input torque at maximum displacement
(theoretical)
N•m/ bar
[lbf•in/1000 psi]
0.4
[244]
0.5
[291]
0.6
[340]
Mass moment of inertia of internal rotating
components
kg•m²
[slug•ft²]
0.001670
[0.0012]
0.001580
[0.00120]
0.001530
[0.0011]
Weight
kg [lb]
23 [51]
Rotation
Clockwise, counter-clockwise
Mounting
SAE B 2 bolt
Auxiliary mounting
SAE J744 A 9T, SPCL 11T
System ports (type)
1 1/16-12 UNF-2B ORB
System ports (location)
Twin radial
Control types
Direct displacement control
Shafts
Splined SAE 13 tooth, 15 tooth
Case drain ports
1 1/16-12 SAE ORB
Operating parameters
Displacement
Rating
Units
25
30
35
Input speed
2
minimum
min
-1
(rpm)
500
500
500
continuous
3400
3500
3600
maximum
3950
4150
4300
Pressure
maximum working
bar [psi]
400 [5800]
350 [5075]
300 [4350]
maximum
415 [6020]
400 [5800]
350 [5075]
External shaft loads External moment (Me)
N•m [lbf•in]
7.7 [68]
Thrust in (Tin), out (Tout) N [lbf]
750 [169]
Bearing life (max.
swashplate angle
and max.
continuous speed)
at 210 bar [3045 psi]
B10 hours
120,000
63,000
37,000
Charge pressure
minimum
bar [psi]
6 [87]
maximum
30 [435]
Technical Information
LPV Axial Piston Pumps
Technical specifications
20 |
©
Danfoss | September 2017
520L0954 | BC00000044en-US0102