Design And Function; Vacuum System - VWR VP 8 Vac Manual Del Usuario

Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for coolant: for tube [mm] ID 8
Electrical Data
Voltage [V]
Frequency [Hz]
Max. operating current [A]
Power consumption pump [W]
Maximum permitted mains voltage fluctuations
Fuse pump** (2x) T [A]
Protection class motor
Tab. 3
5.

Design and Function

5.1 Pump
Design
1 Connection piece
2 Pneumatic connection
3 Pump head
4 Outlet (pressure side)
Fig. 2
Diaphragm pumps transfer, compress (depending on pump version) and evacuate gases and vapors.
The elastic diaphragm (fig. 3/4) is moved up and down by the eccentric (5) and the connecting rod (6). In the
downward stroke it aspirates the gas to be transferred via the inlet valve (2). In the upward stroke, the
diaphragm presses the medium out of the pump head via the outlet valve (1). The transfer chamber (3) is
hermetically separated from the pump drive (7) by the diaphragm.
5.2

Vacuum System

5.2.1 Design
The vacuum system consists of:
 vacuum pump;
 high performance condenser;
 separator;
 digital vacuum meter;
3
- 15 °C to + 20 °C
230
50
0.7
120
+/- 10 %
1.6
IP44
5 Inlet (suction side)
6 Power switch
* Liters in standard state (1,013 mbar)
** For spare part-No. see chapter 10
Function Diaphragm pump
1 Outlet valve
2 Inlet valve
3 Transfer chamber
4 Diaphragm
Fig. 3: Pump head
English
5 Eccentric
6 Connecting rod
7 Pump drive
7