PAHT Pumps

High-Pressure Pumps
Pumps for Ultra Pure Water Applications

What's in it for You?

  • Zero risk of oil contamination thanks to the pump’s ultra-clean technology where no oil is needed.
  • Low maintenance costs thanks to its efficient design and all-stainless steel construction. Service intervals of up to 8,000 hours can be expected.
  • Low energy costs  due to its highly efficient axial piston design
  • Easy installation 
  • Fulfills the stringent hygiene requirements, VDI 6022, HACCP 
  • ISO 9001 and  ISO 14001

Pumps for Reverse Osmosis Applications
Pumps for Oil and Gas Applications
Pumps for Tap Water Applications
Danfoss Pumps, Parts and Accessories Complete List
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Danfoss PAHT high-pressure pumps are designed for ultra-pure water. PAHT pumps are developed for cleaning applications in the manufacturing of electronic parts (LCD and LED) and parts in the automobile industry, as well as in adiabatic cooling- and humidification systems. Lubrication of the moving parts is provided by the water itself. PAHT pumps are the lightest and most compact pumps in the industry and can be installed horizontally or vertically. They are powered by electric motors or combustion engines and are suitable for boosted inlet pressure and water supply from tank. There is no need for cooling circuits due to very high mechanical efficiency.

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PAHT 2-6.3









 Pressure Range:
 Max. outlet pressure:
 100 barg/1,450 psig

 Inlet pressure, cont.:
 0-4 barg/0-58 psig

 Flow Range:
 0.7 to 18.1 l/min
 0.2 to 4.7 gpm

 Speed:
​ 1,000 to 3,000 rpm
PAHT 10-12.5









 Pressure Range:
 Max. outlet pressure:
 140 barg/2,031 psig

 Inlet pressure, cont.:
 0-4 barg/0-58 psig

 Flow Range:
 7.6 to 25.8 l/min
 2.0 to 7.2 gpm

 Speed:
​ 1,000 to 2,400 rpm
PAHT 20-32









 Pressure Range:
 Max. outlet pressure:
 100 barg/1,450 psig (PAHT 20)
 160 barg/2,321 psig (PAHT 25-32)

 Inlet pressure, cont.:
 0-6 barg/0-87 psig

 Flow Range:
 10.8 to 73.5 l/min
 2.8 to 19.1 gpm

 Speed:
​ 700 to 2,400 rpm
Data sheet
Data sheet
Service Manual
Service Manual
Dimensional drawing (.dxf)
Dimensional drawing (.dxf)
3D drawing (.stp)
3D drawing (.stp)
Data sheet
PAHT 50-90









 Pressure Range:
 Max. outlet pressure:
 80 barg/1,160 psig (PAHT 50)
 160 barg/2,321 psig (PAHT 63-90)

 Inlet pressure, cont.:
 0-6 barg/0-87 psig

 Flow Range:
 28.6 to 149.6 l/min
 7.4 to 38.9 gpm

 Speed:
​ 700 to 1,800 rpm
PAHT 256-308









 Pressure Range:
 Max. outlet pressure:
 120 barg/1,740 psig

 Inlet pressure, cont.:
 2-6 barg/29-87 psig

 Flow Range:
 89.6 to 354.2 l/min
 23.3 to 92.1 gpm

 Speed:
​ 450 to 1,250 rpm
Service Manual
PAHT 20 Dimensional drawing (.dxf)
PAHT 20 3D drawing (.stp)
PAHT 25-32 Dimensional drawing (.dxf)
PAHT 25-32 3D drawing (.stp)
Relevant Literature
Data Sheet PAHT Pumps (pdf)
Data sheet
Data sheet
Troubleshooting Guide for PAHT Pumps (pdf)
Service Manual
Service Manual
Filter Solutions for PAH, APP and CLP Pumps (pdf)
Dimensional drawing (.dxf)
Dimensional drawing (.dxf)
3D drawing (.stp)
3D drawing (.stp)
High-Pressure Pumps for Ultra Pure Water (pdf)
Pump Animation

Learn how an axial piston pump works.
High-Pressure Pumps for Cleaning Applications (pdf)
High-Pressure Pumps for Humidification Applications (pdf)