Danfoss PAHT - PAHT 20-32 and PAHT 20-32 LP

180R9288_AQ109686503100en-001301 | 23© Danfoss | 2023.12
Operation guide Installation, Operation and Maintenance Manual for PAHT 20-90 pumps
Pump size 20 20 LP 25 25 LP 32 32 LP
Code number PAHT 180B0019 180B0070 180B0020 180B0071 180B0021 180B0072
Housing material AISI 316 or
higher
AISI 316 or
higher
AISI 316 or
higher
AISI 316 or
higher
AISI 316 or
higher
AISI 316 or
higher
Geometric
displacement
cm³/rev 20 20 25 25 32 32
in³/rev 1.22 1.22 1.53 1.53 1.95 1.95
Pressure
Min. outlet
pressure
barg 30 10 30 10 30 10
psig 435 145 435 145 435 145
Max. outlet
pressure
barg 100 50 160 50 160 50
psig 1450 725 2321 725 2321 725
Inlet pressure,
continuous
1)
barg 0-6 2-6 0-6 2-6 0-6 2-6
psig 0-87 29-87 0-87 29-87 0-87 29-87
Max. inlet
pressure, peak
2)
barg 20 20 20 20 20 20
psig 290 290 290 290 290 290
Speed
Min. speed rpm 700 700 700 700 700 700
Min. speed,
continuous
rpm 1000 1000 1000 1000 1000 1000
Max. speed rpm 2400 2400 2400 2400 2400 2400
Typical ow - Flow curves available in section 5
1000 rpm at max
pressure
l/min 16.9 17. 9 20.6 23 28.0 31.5
1500 rpm at max
pressure
l/min 2 7.0 27. 5 33.2 35.3 44.2 47. 4
1200 rpm at max.
pressure
gpm 5.4 5.7 6.7 7.4 9.0 10.0
1800 rpm at max.
pressure
gpm 8.6 8.8 10.6 11. 3 14.0 15.1
Typical motor size
1500 rpm at max.
pressure
kW
50Hz
5.5 4 11. 0 5.5 15.0 15.5
1800 rpm at max.
pressure
hp
60Hz
10 7. 5 20.0 7. 5
25
10
Torque at max.
outlet pressure
Nm 35 19.5 69.2 25 89.0 29
lbf-ft 25.8 14.4 51.1 18.5 65.7 21.4
Media tempera-
ture
°C 2-50 2-50 2-50 2-50 2-50 2-50
°F 37-122 37-122 37-122 37-122 37-122 37-122
Ambient
temperature
°C 0-50 0-50 0-50 0-50 0-50 0-50
°F 32-122 32-122 32-122 32-122 32-122 32-122
Sound pressure
level
3)
dB(A)
79 79 79 79 79 79
Weight kg 19 19 19 19 19 19
lbs 42 42 42 42 42 42
4.2 PAHT 20-32 and PAHT 20-32 LP
1)
Above 1800 rpm inlet pressure 2-6 barg
2)
1% per minute peak, 10% per minute during start up.
3)
Measurements according to EN ISO 3744: 2010 / dB(A) [L
PA, 1m
] values are calculated.
Measured at max pressure and rpm for a motor pump unit.