Description
3.1.2 Diaphragm
pump
Design:
The diaphragm pump MPC 104 Tp con-
sists of a pump body and a drive motor.
The pump body consists of a drive
shaft and four pump heads.
Each pump head contains the
diaphragm and the work valves.
The two pump heads are arranged
opposite each other.
In a three-stage (T) diaphragm pump,
the two pump heads are connected
in parallel, two further pumps in
series.
The pump heads are driven via an
eccentric shaft with a connecting
rod.
Fig. 2 Diaphragm pump MPC 104 Tp
Function:
Motor, eccentric shaft and connecting rod set the diaphragms in stroke movement. This
changes the size of the space between the diaphragms and pump head (pump chamber).
Increasing the size of the pump chamber opens the inlet valve while the outlet valve is clo-
sed (intake process). Decreasing the size of the pump chamber ejects the gas through the
outlet valve.
The valves are actuated by the gas being pumped. A large proportion of fluid in the dia-
phragm pump minimizes the pumping efficiency.
Component
Materials
Connection- / pump head
PTFE with carbon-fibre reinforcing
Seal EPDM
Screw fitting
PVDF / PP
Valves PEEK
Diaphragm
fabric reinforced with a PTFE layer
Connecting elements
PP
Hose PTFE
PTFE with carbon-fibre reinforcement, electrically conductive (with manufacturer's certificate
of electrical conductivity).
Material resistance to aggressive media see: “Kunststoff Kautschuk Produkte“, Jahreshand-
buch der Verarbeiter 2000/2001 ("Plastic, Rubber Products“, Annual Handbook of the Proc-
essor 2000/2001), Publisher Hoppenstedt Darmstadt, Vienna, Zurich.
3.1.3 Vacuum
Controller
Into the existing hardware of the vacuum controller VCZ 424 a particularly developed soft-
ware was installed.
Technical data:
see chapter 4
Operation:
see chapter 6
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