The data sheet is valid for PAH pumps both non
ATEX and ATEX certied. The ATEX certied
versions are indicated with Ex in the designation.
The Danfoss range of PAH high-pressure pumps
is designed to supply water ow under highpressure for a varity of tap water applications.
Danfoss PAH pumps are positive displacement
pumps, with axial pistons that move a xed
amount of water in each cycle. Flow is proportional to the number of input shaft revolutions
(rpm). Unlike centrifugal pumps, they produce
the same ow at a given speed no matter what
the discharge pressure.
All components are designed to provide long
service life with a constantly high eciency and
minimum service required.
Data sheet PAH 2/4/6.3, PAH 10/12.5, PAH 20/25/32 and PAH 50/63/70/80/100 pumps
Below sectional drawing is an example of a PAH pump.
1: Shaft sealing
2: Mounting ange/
housing with bearing
3: Retaining ring
4: Piston/shoe
5: Valve trust plate
6: Swash plate
7: Cylinder barrel8:
8: Spring
9: Port plate
10: Connecting ange
2. Benets• Zero risk of lubricant contamination:
- Oil lubricants are replaced with the
pumped medium, water, so there is no
contamination risk from the pump.
• Low maintenance costs:
- Ecient design and all-stainless steel
construction ensure exceptionally long
lifetime. When Danfoss specications
are met, service intervals of up to 8,000
hours can be expected. Service is easy,
and can be carried out on site due to
the simple design and few parts.
• Low energy costs:
- The highly ecient axial piston design
provides the lowest energy consumption of any comparable pump on the
market.
• Easy installation:
- The lightest and most compact design
available.
3. Application examples• Stationary and mobile hydraulic systems
• High-pressure systems
• Fire ghting
- Pump can be installed horizontally or
vertically.
- No pulsation dampeners necessary due
to extremely low-pressure pulsation.
- Powered by electric motors or combustion engines.
- Suitable for both boosted inlet
pressure and water supply from a tank.
- No need for cooling circuits due to very
high mechanical eciency.
• Certied quality:
Certicates:
ISO 9001, ISO 14001, ITF 16949
ATEX available on request
ABS and DNV GL certications on
request
For certied pumps specications on inlet and outlet pressure is stated on the 3.1 inspection certicate and may
vary from generic specications stated above.
2)
180B 6124180B 6122180B612 3180B6108180B6107
cm³/rev246.31012 .5
in³/rev0.120.240.380.600.75
barg3030303030
psig435435435435435
barg140140140160160
psig20302030203023202320
barg0-40-40-40-40-4
psig0-580-580-580-580-58
rpm700700700700700
l/min1.03.25.68.411.0
l/min2.05.28.713.417.2
gpm0.41. 01.82.73.5
gpm0.71.72.84.35.5
kW
hp
0.91.72.64.55.6
1.52.74.27.39.0
Nm5.910.916.729.035.8
lbf-ft4.48.012. 321.426.4
°C2-502-502-502-502-50
°F36 -12236 -12236 -1223 6-12236 -122
°C0-500-500-500-500-50
°F32-12 232-12 232-12232-12232-12 2
dB(A)7676767575
1)
lbs9.79.79.717.017.0
4 | AI073186502976en-001801
1)
Measurements according to EN ISO 3744: 2010 / dB(A) [L
Measured at max pressure and rpm for a motor pump unit.
Data sheet PAH 2/4/6.3, PAH 10/12.5, PAH 20/25/32 and PAH 50/63/70/80/100 pumps
4.2 PAH 20-32
Pump size202532
Code number18 0B0079180 B0036180 B0037
Code number ATEX
3)
Housing materialAISI 304AISI 304AISI 304
Geometric
displacement
cm³/rev202532
in³/rev1.221.531.95
Pressure
Min. outlet
pressure
Max. outlet
pressure
Inlet pressure,
continuous
barg303030
psig435435435
barg80160160
psig116023212321
barg0-40-40-4
1)
psig0-580-580-58
Speed
Min. speed,
continuous
rpm700700700
Max. speed rpm180018001800
Typical ow - Flow curves available in section 5
1000 rpm at
max pressure
1500 rpm at
max pressure
1200 rpm at
max. pressure
1800 rpm at
max. pressure
l/min18.822.529.7
l/min28.935.245.9
gpm5.97. 29.4
gpm9.111.114.5
Typical motor size
1500 rpm at
kW
max. pressure
1800 rpm at
hp
max. pressure
Torque at max.
spec.
Media
temperature
Ambient
temperature
Sound
pressure level
Nm28.068.588.1
lbf-ft20.750.265.0
°C2-502-502-50
°F36 -12236 -12236 -122
°C0-500-500-50
°F32-12 232-12 232-122
dB(A)
2)
Weightkg161616
lbs353535
For certied pumps specications on inlet and outlet pressure is stated on the 3.1 inspection certicate and may
vary from generic specications stated above.
180B617918 0B613618 0B6137
4.410.813.8
7.117. 322.3
797979
1)
Above 1800 rpm inlet pressure 2-6 barg
2)
Measurements according to EN ISO 3744: 2010 / dB(A) [L
Measured at max pressure and rpm for a motor pump unit.
For certied pumps specications on inlet and outlet pressure is stated on the 3.1 inspection certicate and may
vary from generic specications stated above.
1)
Measurements according to EN ISO 3744: 2010 / dB(A) [L
Measured at max pressure and rpm for a motor pump unit.
2)
Category 2, Zone 1 or Category 3, Zone 2.
3)
If PAH 63/70/80 run 1800 - 2400 rpm the following conditions apply:
Inlet pressure 2 -4 barg, outlet pressure max. 140 barg for a maximum of 500 hours in between service
inspection
4)
Pump operation, with full service life of 8000 hours, is max 80 barg (1160 psig) and 1500 rpm. Under following conditions,
PAH 100 can handle outlet pressures up to 160 barg (2321 psig):
- at maximum 1500 rpm up to 500 hours operation in between service inspection. Maximum ow is 143 l/min (37 gmp)
- at maximum 1800 rpm up to 250 hours operation in between service inspection. Maximum ow is 173 l/min (45 gpm)