Thermo Scientific thermoscientific Vanquish Pumps C, Operating Manual

Page: 172 / 296

7 • Maintenance and Service
Page 172 Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual
7.9.2 Replacing Solvent Lines
To replace solvent lines, follow the sequence of steps for the solvent line
that you want to replace:
The flow path determines the pump inlet (component at which the
solvent enters the pump) and the solvent flow through the pump.
Pump Type Pump Inlet
Binary pump The pump inlets are the solvent selectors.
Isocratic pump The pump inlet is the pump head.
Quaternary pump,
dual pump The pump inlet is the vacuum degasser.
For the pump-specific operating principles that illustrate the solvent
flow through the pump, see
Pump-Specific Information (
}
page 215) .
• Solvent line from the solvent reservoir to the pump inlet: Follow the
steps
Solvent Lines From Reservoir To Pump Inlet ( } page 173) .
• Depending on the pump type
Solvent line from the pump inlet to the proportioning valve or
degasser: Follow the steps in
Solvent Lines From Pump Inlet to
Proportioning Valve or Degasser ( } page 173) .
• Depending on the pump type
Solvent line from the proportioning valve or degasser to the pump
head: Follow the steps in
Solvent Line From Proportioning Valve or
Degasser To Pump Head ( } page 174) .