Metrohm 843 Pump Station with membrane pump - Manual (Page 15)

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2 Overview of the instrument
843 Pump Station with Membrane Pumps
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2.3 Membrane pump
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Figure 3 Membrane pump with inlet and outlet tubing
1 Outlet tubing (e. g. 6.1812.000) 2 Union nut
3 Valve opening with protective cap 4 Specification of flow direction
5 Inlet tubing (e. g. 6.1812.000) 6 Tube connection
7 Valve 8 Pump head