Diaphragm liquid pump NF 25, NFB 25
Installation and connection
KNF Flodos AG BA_NF25_NFB25_EN_07_159615
Translated from the Original Operating and Installation Instructions
14
6.3.2. NFB 25 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:
Configure pump head hoses in parallel (see Fig. 8).
Keep hoses between pump and junction as short as possible.
Cause as little narrowing as possible with connection ele-
ments. Recommendation: Min. inside diameter 3mm.
Please contact your local KNF partner for further information
(www.knf.com).
Please contact your local KNF partner for further information
(www.knf.com).
Fig. 11: NFB hose configuration for low pulsation
Fig. 10: Hose connection options
for NFB versions
Fig. 12: 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.
