4. Composition and function
page 11
EN
4. Composition and
function
Fig.1 shows the principle design of the pumps PXA
or PXK.
The pumps are used in suction operation. They are
designed for vertical installation.
The electric drive (1) is installed on the pump
connector (2), to which the individual pump stages
(7) are fastened by means of tie rods (6).
The connector houses the pump shaft bearing and
the sealing. The pressure connection (4) and the
assembly flange (3) for installation on the medium
container are likewise part of the connector. The
pump PXA also features a venting screw (5) near
the pressure connection.
A variable number of pump stages supplies the
mediumn that is drawn in at the pump bottom (8)
through the intake opening (9).
Fig.: 1. Design of the
pumps PXA and PXK
1 Drive
2 Pump connector
3 Assembly flange
4 Pressure connection
5 Venting screw (PXA
only)
6 Tie rod
7 Pump stage
8 Pump bottom
9 Intake opening
1
6
5
4
3
2
7
8
9
PXA
PXK
