BUCHI Rotavapo R-220 SE - Manual (Page 45)

5 Putting into operation
45 R-220 SE Operation Manual, Version F
5 .8 Inlet valve
The inlet valve allows continous feeding and manual aeration (e.g. at foam formation) of the evapo-
rating flask. The feeding throughput is manually adjustable via the thumbscrew.
NOTE
The PTFE seal element inside the valve is a standard spare part and can be exchanged easily accor-
ding to the drawing below.
a
b
041388
PTFE inlay
a Remove the three allen key screws and pull off the valve head.
b The white PTFE seal element (order no. 041388) is equipped with a thread and can be
exchanged easily. Turn counterclockwise to remove the element.