Danfoss H1 078 - Operating Parameters; Fluid Specifications

Operating Parameters
Feature Unit Frame size
069 078 089 100 115 130 147 165 210 250
Input speed Minimum min
-1
(rpm) 500
Minimum for full
performance
1200
Rated 3500 3200 3000
2600
Maximum 4000 3400 3100
2800
System pressure Working pressure bar [psi] 450 [6525]
Maximum pressure 480 [7000]
Minimum low loop 10 [150]
Charge Pressure Minimum bar [psi] 10 [150] 16 [232] 18 [261]
Maximum 35 [508] 60 [870]
Control Pressure Minimum (at
corner for EDC and
FNR)
bar [psi] 17 [ 247] 16 [232]
Minimum (at
corner for NFPE)
25 (377)
Maximum 40 [580] 40 [580]
Charge pump inlet
pressure
Rated bar (absolute)
[in Hg
vacuum]
0.7 [9]
Minimum (cold
start)
0.2 [24]
Maximum bar [psi] 4.0 [58]
Case pressure Rated bar [psi] 3.0 [40]
Maximum 5.0 [75]
Fluid Specifications
Feature Unit Value
Viscosity Minimum mm
2
/sec [SUS] 7 [49]
Recommended Range 12-80 [66-370]
Maximum 1600 [7500]
Temperature Range Minimum OC [OF] -40 [-40]
Rated 104 [220]
Maximum intermittent 115 [240]
Filtration (recommended
minimum)
Cleanliness per ISO 4460 22/18/13
Efficiency (charge pressure filtration) b-ratio b
15-20
= 75 (b
10
≥10)
Efficiency (suction and return line filtration) b
35-45
= 75 (b
10
≥2)
Recommended inlet screen mesh size mm 100 - 125
Ratings and data are based on operation with premium petroleum-based hydraulic fluids containing
oxidation, rust, and foam inhibitors.
Service Manual
H1 Pumps 069/078, 089/100, 115/130, 147/165, 210/250
Technical Specifications
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©
Danfoss | May 2018 520L0848 | AX00000087en-US0308