Danfoss PAH 20

Data sheet PAH 2/4/6.3, PAH 10/12.5, PAH 20/25/32 and PAH 50/63/70/80/100 pumps
20 | 180R380 | AQ213286502970en-000701 | IOM PAH 20-100 pumps
© Danfoss | DCS (im) | 2021.11
Contents
1. Introduction ...........................................................................20
2. Benets................................................................................21
3. Application examples ..................................................................21
4.2 PAH 20-32 .............................................................................22
4.3 PAH 50-100 ............................................................................23
5. Flow ...................................................................................24
5.4 PAH 50-100 typical ow curves at max pressure .........................................25
6. Motor requirements....................................................................26
7. Installation.............................................................................27
7.1 Filtration ..............................................................................27
7.2 Noise ..................................................................................27
7.3 Open-system design ...................................................................28
7.4 Closed-system design .................................................................29
8. Dimensions and connections...........................................................30
8.3 PAH 20-25 .............................................................................30
8.4 PAH 50-100 ............................................................................31
9. Service.................................................................................32
The data sheet is valid for PAH pumps both non
ATEX and ATEX certied. The ATEX certied
versions are indicated with Ex in the designation.
The Danfoss range of PAH high-pressure pumps
is designed to supply water ow under high-
pressure 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 propor-
tional 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 eciency and
minimum service required.
In the following all pumps are named PAH.
1. Introduction
Table of Contents