KNF LAB LABOPORT SH820G Manual Del Usuario página 100

Product description and function
1 Outlet valve
2 Inlet valve
3 Transfer
chamber
4 Diaphragm
5 Eccentric
6 Connecting
rod
24
Function of a diaphragm pump
3
4
5
6
Fig.4: Function of a diaphragm pump
Diaphragm pumps transfer, compress (depending on the ver-
sion) and evacuate gases and vapors.
The elastic diaphragm (4) is moved up and down by the ec-
centric (5) and the connecting rod (6). In the downwards
stroke, it aspirates the gas to be transferred via the inlet valve
(2). In the upwards stroke, the diaphragm presses the medium
out of the pump head via the outlet valve (1). The pumping
chamber (3) is separated from the pump drive by the di-
aphragm.
Translation of Originial Operating Instruction, KNF 325562-325564 06/21
Vacuum system SH820G / SR820G SH840G / SR840G
2
1