20 | 180R9383 | AQ121686503103en-000803
© Danfoss | 2023.03
Data sheet
Product type
Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2. Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.
Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.1
PAHT G 2-12.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.2
PAHT G 20-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4.3
PAHT G 50-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4.4
PAHT G 256-308. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
5. Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5.1
PAHT G 2-6.3 typical flow curves at max pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5.2
PAHT G 10-12.5 typical flow curves at max pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.3
PAHT G 20-32 typical flow curves at max pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.4
PAHT G 50-90 typical flow curves at max pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5.5
PAHT G 256-308 typical flow curves at max pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
6.
Motor requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
7. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7.1 Filtration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7.2 Noise
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7.3
Open-system design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
7.4
Closed-system design (not applicable for PAHT G 256-308). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.
Dimensions and connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
8.1
PAHT G 2-6.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
8.2
PAHT G 10-12.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.3
PAHT G 20-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
8.4
PAHT G 50-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
8.5
PAHT G 256-308. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9. Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
The Danfoss range of PAHT G high-pressure
pumps is specifically designed for use with
technical water such as:
•
Ultra-pure water that has undergone
multiple reverse osmosis processes
•
De-ionized water
•
Demineralized water
Danfoss PAHT G pumps are positive displace-
ment pumps, with axial pistons that move a fixed
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 flow at a given speed independently of
no matter what the discharge pressure.
The range of PAHT G pumps is based on the
standard PAHT pump series. The PAHT G pumps
are made with extra coatings that reduce the
wear of the pump. This coating is particularly
important for pumps used in gas turbine
applications or other similar applications where
the wear of the pumps is higher due to the ultra
pure water quality.
The next pages will cover both PAHT G and PAHT
G ATEX pumps.
ATEX certified pumps are indicated by Ex in the
type designation - example PAHT G 12.5 Ex.
1. Introduction
Table of Contents
Data sheet
Содержание PAHT G
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Страница 39: ...180R9383 AQ121686503103en 000803 39 Danfoss 2023 03 Data sheet Product type 8 5 PAHT G 256 308 Data sheet...
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Страница 43: ...Danfoss 2023 03 180R9383 AQ121686503103en 000803 1 Instruction PAHT G pumps PAHT G 2 12 5 hpp danfoss com...
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