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Series AFG Averaging Flow Grid Specifications - Installation and Operating Instructions - page 3 / 6

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page 3

Fig. 6

Fig. 7

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.

Fig. 8

Fig. 9

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).

Fig. 10

Fig. 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).

Fig. 12

Fig. 13

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