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333/334 HPLC PUMPS | USER’S GUIDE
HYDRAULIC CONNECTIONS
Piston Rinsing Chamber
When a pump is delivered, the inlet and outlet ports
to the rinsing chamber are fitted with plugs, which
prevent airborne particles from entering the ports.
If you do not need to use piston rinsing, you should
leave these plugs in place.
If the solvent is an aqueous solution containing
more than 0.1 M of solute, which is solid in ambient
conditions, then the piston should be rinsed
continuously with water.
A plumbing kit should be installed for the piston
rinsing chambers of both heads.
The plumbing kit consists of: two rinsing lines, which
connect to the rinsing chamber inlets at the bottom
of each head (the longer line connects to the left
head) and two shaped purge lines, which connect to
the rinsing chamber outlets at the top of each head.
For details about installing the piston rinse
plumbing and the piston rinsing procedure, refer to
Piston Rinsing Procedure on page 36.
Figure 25
Close Up of Piston Rinse Lines
Rinsing
Line
from
Bottle
Purge
Line
to
Drip
Tray
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