Dwyer AFG User Manual

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Bias protruding ends of tubes towards the edge of the 1.26” (32
mm) diameter hole while cutting to length, and cut tubes 0.20” to
0.28˝ (5 to 7 mm) from the outside of the duct wall. DEBURR and
REMOVE SHARP EDGES from the tube ends and slide tube caps
over tubes (see Fig. 8 & 9). Fit the grommets as shown.

Position and secure diaphragms and duct caps over protruding
tubes using clamping washers and No. 6 x 5/8” screws, etc. (See
Fig. 10 & 11).

Push the elbows into the adapters. These may point in any direc-
tion to suit tubing runs to differential pressure measuring instru-
ments (See Fig. 12 & 13).

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Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

AFG iom1 1/3/06 2:00 PM Page 3