Buchi V-600 - Connecting a Secondary Cold Trap

5 | Installation BÜCHI Labortechnik AG
28/65 Operation Manual Vacuum Pump V-600
5.8 Connecting a secondary cold trap
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Fig.14: Secondary cold trap and holder
1 Secondary cold trap 6 Secondary cold trap outlet
2 Pump outlet with GL14 union nut 7 Mounting rail on V-600
3 Connecting tube 8 Ball joint clamp
4 Secondary cold trap inlet 9 Receiving flask
5 Holder for secondary cold trap
The secondary cold trap is fixed to a mounting rail on the V-600 in the same way as
the secondary condenser (see Chapter5.7 "Connecting a secondary condenser",
page27) and is connected to the pump outlet.
u Fit a short connecting tube (3) to the secondary cold trap inlet (4).
u Loosely screw a GL14 union nut together with tube seal onto the thread of the
pump outlet (2), Chapter7.2.8 "Fitting GL14 union nut with tube seal", page55.
NOTICE!If incorrectly fitted, the tube seals may be damaged.
u Position the secondary cold trap in front of the pump outlet of the V-600. Slide the
holder into the upper slot of the mounting rail (7). When doing so, make sure that
the inlet of the secondary cold trap with connecting tube attached is facing the
pump outlet.
u Insert the connecting tube into the threaded pump outlet connector, taking care
not to damage the tube seal when doing so.
u Tighten the GL14 union nut.
u Fit receiving flask (9) onto the bottom outlet of the secondary cold trap and fix with
the aid of a ball joint clamp (8).
u From the outlet (6) of the secondary cold trap, feed another connecting tube di-
rectly into a fume hood.