Replacing The Static Mixer Or Capillary Mixer - Thermo Scientific thermoscientific Vanquish Pumps C Operating Manual

7.8.2

Replacing the Static Mixer or Capillary Mixer

When
Parts, tools and additional items required
Preparations
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual
5. Depends on the pressure reading:
Pressure Reading
Pressure is less than 0.8 MPa
Pressure is 0.8 MPa or higher
6. Reconnect the capillary to the outlet of the static mixer.
7. Test the pump for leakage. See
(General Test) (} page 179).
• Impaired permeability of the static mixer
• Damage of static mixer
• Leaky capillary mixer
• As applicable
Static mixer
¨
Capillary mixer
¨
• Depending on the capillary connection:
Viper capillary: Viper knurl (usually present on the capillary)
¨
Conventional capillary (non-Viper): Open-end wrench, size 1/4"
¨
• Solvent suitable for purging
1. To flush out harmful substances, purge the pump with an
appropriate solvent.
2. To remove harmful substances from the components in the flow
path after the purge unit, have the pump deliver for a short time
with the solvent that was used for purging.
3. Turn off the pump flow and wait until the system pressure is down
to zero.
7 • Maintenance and Service
Action
Continue with the next step.
Replace the static mixer.
Testing the Pump for Leakage
Page 169