5 Overview of equipment and control elements
5.1
Overview of equipment
Fig. 2: Overview of equipment, complete
1 Control unit
2 Drive unit
3 Liquid end
Fig. 3: Liquid end with PV bleed valve
1 Discharge valve
2 Backplate
3 Dosing head
4 Bleed valve
5 Bypass hose sleeve
6 Diaphragm rupture indicator (optional)
7 Suction valve
Self-bleeding liquid ends (SER)
Externally self-bleeding liquid ends with groove
(SER) look identical to liquid ends with bleed valve.
Overview of equipment and control elements
17