Danfoss H1 Technical Information

For definitions of the following specifications, see H1 Axial Piston Pumps, Basic Information 11062168,
chapter Operating parameters.
H1P general specifications
Design
Axial piston pump of cradle swashplate design with variable displacement
Direction of rotation
Clockwise, counterclockwise
Pipe connections
Main pressure ports: ISO split flange boss
Remaining ports: SAE straight thread O-ring boss
Recommended installation
position
Pump installation position is discretionary, however the recommended control position is on the top or at the side
with the top position preferred. If the pump is installed with the control at the bottom, flushing flow must be
provided through port M14 located on the EDC, FNR and NFPE control. Vertical input shaft installation is acceptable.
If input shaft is at the top 1 bar case pressure must be maintained during operation. The housing must always be
filled with hydraulic fluid. Recommended mounting for a multiple pump stack is to arrange the highest power flow
towards the input source.
Consult Danfoss Power Solutions for nonconformance to these guidelines.
Auxiliary cavity pressure
Will be inlet pressure with internal charge pump. For reference see operating parameters on next page.
Will be case pressure with external charge supply. Please verify mating pump shaft seal capability.
Technical data H1P 069/078
Feature Size 069 Size 078
Displacement
69.2 cm
3
[4.22 in
3
]
78.1 cm
3
[4.77 in
3
]
Flow at rated (continuous) speed
243 l/min
[53.5 US gal/min]
273 l/min
[72 US gal/min]
Torque at maximum displacement
(theoretical)
1.1 N•m/bar
[672 lbf•in/1000 psi]
1.24 N•m/bar
[758 lbf•in/1000 psi]
Mass moment of inertia of rotating
components
0.0077 kg•m
2
[0.0057 slug•ft
2
]
0.0094 kg•m
2
[0.00693 slug•ft
2
]
Mass [weight] dry
56 kg [123 lb] (without charge pump or auxiliary mounting flange)
Oil volume
2 l [0.5 US gal]
Mounting flange
ISO 3019-1 flange 127-4 (SAE C)
Input shaft outer diameter,
splines and tapered shafts
ISO 3019-1, outer Ø 32 mm - 4 (SAE C, 14 teeth)
ISO 3019-1, outer Ø 35 mm - 4 (SAE C, 21 teeth)
ISO 3019-1, outer Ø 38 mm - 4 (SAE C-C, 23 teeth)
Conical keyed shaft end similar to ISO 3019-1 code 38-3, taper 1:8
Auxiliary mounting flange
with metric fasteners,
Shaft outer diameter and splines
ISO 3019-1, flange 82 - 2, outer Ø 16 mm - 4 (SAE A, 9 teeth)
ISO 3019-1, flange 82 - 2, outer Ø 19 mm - 4 (SAE A, 11 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 22 mm - 4 (SAE B, 13 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 25 mm - 4 (SAE B-B, 15 teeth)
ISO 3019-1, flange 127 - 4, outer Ø 32 mm - 4 (SAE C, 14 teeth)
Suction port
Port ISO 11926-1 – 1
5
∕
8
-12 (SAE O-ring boss)
Main port configuration
Ø25.4 - 450 bar split flange boss per ISO 6162, M12x1.75
Case drain ports L2, L4
Port ISO 11926-1 – 1
1
∕
16
-12 (SAE O-ring boss)
Other ports
SAE O-ring boss
Customer interface threads
Metric fasteners
Technical Information H1 Axial Piston Single Pumps, Size 069/078
Technical specifications
11062169 • Rev 0700 • November 2015 5

Danfoss H1 Specifications

General

Brand	Danfoss
Model	H1
Category	Water Pump
Language	English