Recirculation
Here is a selection of → KNF pumps for the hydrogen value chain and fuel cell systems that can be used for recirculation of the following media:
→ Hydrogen, hydrogen gas, hydrogen steam
→ Oxygen
Hydrogen, Hydrogen Gas, Hydrogen Steam
The following KNF pumps can be used for recirculating hydrogen, hydrogen gas and hydrogen steam:
NMP 820
NMP 830
N 96
NMP 830.1.2 HP
Flow rate: max. 2.1 l/min
Ultimate vacuum: max. 330 mbar (abs.)
Operating pressure: max. 1.2 bar (rel.)
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Flow rate: max. 3.1 l/min
Ultimate vacuum: max. 250 mbar (abs.)
Operating pressure: max. 1.4 bar (rel.)
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Flow rate: max. 8.5 l/min
Ultimate vacuum: max. 100 mbar (abs.)
Operating pressure: max. 2.5 bar (rel.)
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Flow rate: max. 9 l/min
Ultimate vacuum: max. 55 mbar (abs.)
Operating pressure: max. 3 bar (rel.)
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N 816
NMP 850.1.2 HP
N 838
N 938
Flow rate: max. 16 l/min
Ultimate vacuum: max. 100 mbar (abs.)
Operating pressure: max. 0.5 bar (rel.)
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Flow rate: max. 16 l/min
Ultimate vacuum: max. 50 mbar (abs.)
Operating pressure: max. 2.2 bar (rel.)
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Flow rate: max. 34 l/min
Ultimate vacuum: max. 100 mbar (abs.)
Operating pressure: max. 0.5 bar (rel.)
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Flow rate: max. 35 l/min
Ultimate vacuum: max. 160 mbar (abs.)
Operating pressure: max. 1 bar (rel.)
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N 630
N 838.1.2
Flow rate: max. 35 l/min
Ultimate vacuum: max. 120 mbar (abs.)
Operating pressure: max. 7 bar (rel.)
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Flow rate: max. 60 l/min
Ultimate vacuum: max. 90 mbar (abs.)
Operating pressure: max. 0.5 bar (rel.)
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Methanol-Water Solution
The following KNF pumps can be used for recirculating methanol-water solutions:
NF 5
FF 20
NF 60
NFB 100
Flow rate: max. 0.07 l/min
Suction height: max. 3 mH2O
Operating pressure: max. 1 bar (rel.)
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Flow rate: max. 0.23 l/min
Suction height: max. 3.5 mH2O
Operating pressure: max. 3 bar (rel.)
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Flow rate: max. 0.6 l/min
Suction height: max. 3 mH2O
Operating pressure: max. 1 bar (rel.)
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Flow rate: max. 2.6 l/min
Suction height: max. 3 mH2O
Operating pressure: max. 1 bar (rel.)
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Oxygen
The following KNF pumps can be used for recirculating oxygen:
NMP 830
NMP 850
NMP 850.1.2
Flow rate: max. 3.1 l/min
Ultimate vacuum: max. 250 mbar (abs.)
Operating pressure: max. 1.4 bar (rel.)
Learn more hereFlow rate: max. 4.5 l/min
Ultimate vacuum: max. 230 mbar (abs.)
Operating pressure: max. 2.5 bar (rel.)
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Flow rate: max. 8.5 l/min
Ultimate vacuum: max. 60 mbar (abs.)
Operating pressure: max. 2.5 bar (rel.)
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NMP 830.1.2 HP
N 816
Flow rate: max. 9 l/min
Ultimate vacuum: max. 55 mbar (abs.)
Operating pressure: max. 3 bar (rel.)
Learn more hereFlow rate: max. 16 l/min
Ultimate vacuum: max. 100 mbar (abs.)
Operating pressure: max. 0.5 bar (rel.)
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