Grizzly Model G0638 owner manual Designing System, General, Duct Material, Metal Duct

designing the system

SECTION 4: DESIGNING THE

SYSTEM

General

The Model G0637/G0638 is designed to be a cen- tral dust collector system. Locate the dust collec- tor in an out of the way location such as a corner or separate room. The large suction capacity of the Model G0637/G0638 allows great flexibility in planning and designing of your dust collection duct layout. Grizzly offers a complete line of dust collection accessories for setting up a stationary system. Additionally, Grizzly offers a complete guide book titled Dust Collection Basics.

Whatever system design you choose, always make sure there are no open flames (including pilot lights) in the same room as the dust col- lector; otherwise you risk an explosion if dust is dispersed into the air.

Duct Material

You have many choices regarding main line and branch line duct material. For best results, use metal duct for the main line and branch lines, then use a short lengths of flexible hose to connect each machine to the branch lines.

Plastic duct is also a popular material for home shops. However, be aware that there is a fire or explosion hazard if plastic duct material is used for dust collection without being grounded against static electrical charge build-up. This topic will be discussed later in this section. Another problem with using plastic is that it is less efficient per foot than metal.

Metal Duct

Advantages of metal duct is its conductivity and that it does not contribute to static electrical charge build-up. However, static charges are still produced when dust particles strike other dust particles as they move through the duct. Since metal duct is a conductor, it can be grounded quite easily to dissipate any static electrical charges.

Figure 43. Examples of metal pipe and

components.

-28- G0637/G0638 Cyclone Dust Collector