Danfoss H1 Series Technical Information

Also see for H1 Series: Service manual Technical information Technical information Technical information Technical information

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H1 Pumps General SpecificationAxial piston closed circuit variable displacement pump of cradle swash-plate design with clockwise orcounterclockwise direction of rotation.Pipe connections• Main pressure ports: ISO split flange boss• Remaining ports: SAE straight thread O-ring bossRecommended installation positionPump installation position is discretionary, however the recommended control position is on the top orat 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 bemaintained 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 theinput source.Consult Danfoss for nonconformance to these guidelines.Auxiliary cavity pressureAuxiliary cavity pressure will be inlet pressure with internal charge pump or case pressure with externalcharge supply. For reference see H1P 115/130 Operating Parameters on page 6. Please verify matingpump shaft seal capability.H1P 115/130 Technical DataFeature Size 115 Size 130Displacement 115.2 cm3 [7.03 in3] 130.0 cm3 [7.93 in3]Flow at rated speed(continuous)371 l/min[98 US gal/min]419 l/min[111 US gal/min]Torque at maximum displacement(theoretical)1.83 N•m/bar[1120 lbf•in/1000 psi]2.07 N•m/bar[1260 lbf•in/1000 psi]Mass moment of inertia of rotatingcomponents0.021 kg•m2[0.0155 slug•ft2]0.0094kg•m2[0.0069 slug•ft2]Mass (dry – no charge pump orauxiliary mounting flange)83 kg [187 lb] 83 kg [187 lb]Oil volume 2.0 l [0.5 US gal] 2.0 l [0.5 US gal]Shaft, flange and ports descriptionInput shaft outer diameter, ISO3019-1 splined or tapered shaft• Outer Ø44 mm – 4 (SAE D, 13 teeth)• Outer Ø44 mm – 4 (SAE D, 27 teeth)• Conical keyed shaft end similar to ISO 3019-1 code 44-3, taper 1:8Mounting flange per ISO 3019-1 Flange 152-4 (SAE D)Technical InformationH1P 115/130 Axial Piston Single PumpsTechnical specifications© Danfoss | May 2018 BC00000198en-US0901 | 5