These steps apply only when installing a shut-off valve during initial setup of the pump. To install a shut-off valve after initial operation of the pump, follow the steps in Installing Solvent Shut-Off Valves.
When
To shut off the solvent flow through the system at the solvent reservoir, for example, to prevent solvent from flowing through the system when you open a flow connection on the low-pressure side
Parts and additional items required
Shut-off valve, kit containing one shut-off valve and fitting connections
Tubing cutter
Preparations
Prepare the pump and follow the steps in Connecting the Solvent Lines.
Follow these steps
No. | Description |
---|---|
1 | Solvent line |
2 | Fitting |
3 | Ferrule |
4 | Shut-off valve |
Cut the solvent line about 10 cm from the reservoir cap with a tubing cutter. Make sure that the cut is at a right angle to the length of the line.
Onto the free end of each solvent line, slide a fitting and a ferrule. Mind the correct orientation of the fitting and ferrule (see picture).
Tighten the solvent lines to the shut-off valve.
No. | Description |
---|---|
1 | Shut-off valve |
2 | Retaining guide |
Check the solvent lines across the entire flow path. Make sure that the lines are not bent, pinched, or squeezed at any point in the flow path.