Mini Laboratory pumps N 86.18, N 811.18
Design and Function
Translation of original Operating Instructions, English, KNF 121435-121438 04/18
13
Function Diaphragm Pump
1
Outlet valve
2
Inlet valve
3
Transfer chamber
4
Diaphragm
5
Eccentric
6
Connecting rod
7
Pump drive
Fig. 4: Pump head
Diaphragm pumps transfer, compress (depending on pump ver-
sion) and evacuate gases and vapors.
The elastic diaphragm (
4
) is moved up and down by the eccentric
(
5
) and the connecting rod (
6
). In the downward stroke it aspirates
the gas to be transferred via the inlet valve (
2
). In the upward
stroke, the diaphragm presses the medium out of the pump head
via the outlet valve (
1
). The transfer chamber (
3
) is hermetically
separated from the pump drive (
7
) by the diaphragm.
DE
EN
FR
ES
IT
Содержание Laboport N811 KN.18
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