Operating Principle - Thermo Scientific Vanquish VH-P10 Operating Manual

3.2

Operating Principle

Vanquish Pumps (VH-P10) Operating Manual
The pump can generate pressures up to 151 MPa with ultra-low
pulsation. The pump is based on a two-channel, dual-piston design with
electronic compressibility compensation.
The picture illustrates how the pump operates:
Figure 1: Operating Principle
No. Description
1 Solvent degasser
2 Solvent selectors
3 Pump heads (two pistons, parallel)
4 Purge unit
5 Pressure transducer
6 Inline filter (static filter)
7 Pump outlet (outlet of the inline filter)
Each pump head comprises two cylinders that are connected in parallel.
Thus, the solvent passes only one cylinder when the pump is delivering.
To achieve continuous delivery, one cylinder is refilled while the other
cylinder is delivering at the selected flow rate.
3 • Pump Overview
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