Specifications

Model 50 Valve, Continued
Step Procedure
6. Repeat steps 3 and 4 with the middle plate.
7. Place the top plate on the valve, verifying alignment using the
alignment marks.
8. Install the 5 screws and washers finger tight.
9. Tighten the screws down evenly (2.5mm Allen wrench) to 6 to 8
inch-pounds of torque. (It is recommended to use the torque
wrench available from Siemens, PN 1631005-001, which is
calibrated at 7.2 inch pounds). Remove the assembled valve
from the valve fixture.
10. Reinstall the valve in the Analytical Module and connect all
tubing.
11. Check for leaks.
12. Reinstall the Analytical Module in the Modular Oven as
described in the section of this chapter relating to the Analytical
Module. Verify valve operation by running chromatograms.
A5E31405710001 4-25