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Woodstock W1816 Determining Main Line Duct Diameter, Determining Branch Line Duct Diameter

Models: W1816

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W1816 Owner's Manual (Mfg. Since 10/09)

Determining Main Line Duct Diameter

OPERATIONS

The general rule of thumb for a main line duct is that the velocity of the airflow must not fall below 3500 FPM.

Use the inlet size of the dust collector as a starting point for the main line. Neck the main line down 1" for every 10' of length. This will usually keep the air velocity above 3500 FPM and, depending on your system, will allow you to keep multiple branches open at one time.

Mark your drawing as in Figure 43, but using the inlet size for your dust collector as the main line.

Determining Branch Line Duct Diameter

The general rule of thumb for a branch line duct is that the velocity of the airflow must not fall below 4000 FPM.

For small/medium sized shops, using the dust port size from the machine as the branch line duct size will achieve the correct velocity in most applications. However, if the dust port on the machine is smaller than 4", make the branch line 4" and neck the line down right before the dust port.

Note: Systems with powerful dust collectors work better if multiple blast gates are left open. This also allows you to run two machines at once. Experiment with different combinations of blast gates open/closed to find the best results for your system.

Write your determined branch line sizes on your drawing, as shown in Figure 44.

395

395

790

 

 

98

8" 8"

220

395

614

 

Figure 43. Sketch example with the main

line duct diameter labeled.

395

395

790

 

 

98

4" 4" 6"

4"8" 8"

4"

4"

5"

220

395

614

 

Figure 44. Sketch example with branch

line diameters labeled.

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Woodstock W1816 owner manual Determining Main Line Duct Diameter, Determining Branch Line Duct Diameter
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W1816 specifications

Woodstock W1816 is a remarkable and versatile digital watch designed for modern consumers who value both style and functionality. With its sleek aesthetic and innovative technologies, the W1816 has become a popular choice among watch enthusiasts and casual wearers alike.

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