KNF NF 100 - NFB Pump Hose Configuration

Diaphragm liquid pump NF 100 Installation and connection
KNF Flodos BA_NF100_EN_10_067676.docx
Translation of original Operating and Installation Instructions 19
6.3.2. NFB 100 hose configuration
A double-headed pump is normally selected to reduce the
pressure surges caused by the alternation between suction
and exhaust in a diaphragm pump. In order to achieve this
effect, in addition to the pump configuration it is important to
configure the hoses correctly.
For low pulsation (pressure surges) in NFB pumps:
 Use pump in non-boxer (standard) version so that the heads
expel alternately.
 Configure pump head hoses in parallel (see Fig. 13).
 Keep hoses between pump and junction as short as possible.
 As little constriction as possible should be caused when using
connecting components. As a guide: min. inner diameter 5.5
mm.
Contact your KNF technical advisor if you have any questions
(see last page for telephone number).
Fig. 13: NFB 100 hose configuration for low pulsation
CAUTION
Changed technical characteristics
In the case of NFB versions, the use of .27 versions
may affect technical characteristics. (See Fig. 12,
Hose connection optionsb) and d) ).
Fig. 12: Hose connection options
for NFB versions
Fig. 14: no series connection in the
case of NFB versions
CAUTION
Series connection damages pump
If the two heads in the NFB versions are connected
in series, the pump will be damaged, and may leak.