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2.5.2 PTFE-lined Suction Line
Inserting a tube coupler into PTFE-lined
suction line will damage the thin lining.
Instead, refer to Figure 2-7 and the instructions
below to attach PTFE-lined suction line to the
sample tube:
1. Slide a short piece of silicone tubing over
the inlet fitting and install a hose clamp (B).
2. Push about 20 mm of the PTFE-lined
suction line into the end of the silicone tube
(A).
3. Slide the clamp over the union and tighten.
Do not overtighten; this might cause the
tubing to collapse or restrict the flow.
Figure 2-7 Connecting PTFE-lined suction
line (A) silicone tube (B)
A
Section 2 Installation
B
2-15
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