Baileigh MDC-1800-1.0, Operator'S Manual

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General Ducting Systems Guidelines
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This is a metal dust collector. Per the National Fire Protection Agency (NFPA) a dust
collector may only be used to collect a single material as designed. Using a dust collector for
multiple materials such as metal and wood is prohibited due to the possibility of a fire and/or
explosion.
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Never use PVC pipe for duct work. The National Fire Protection Agency (NFPA) has
determined that dust traveling through PVC pipe can build up a static electric charge creating
the possibility of a fire and/or explosion.
•
Design and build the ducting system using smooth wall steel metal pipe with a minimum of 3”
(76mm) diameter (4” [100mm] recommended). Avoid and limit the amount of flexible hose in
the ducting system. The pressure drop (resistance) through flex hose is generally 2-3 times
higher than smooth wall sheet metal pipe.
•
If/when connecting a dust collector to more than one machine, install dampers at each
machine so the dust collector is only pulling from one machine at a time.
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Keep the dusting runs as short and as straight as possible and minimize/avoid using 90° and
45° elbows as much as possible. 90° elbow for example, have the same pressure drop
(resistance) as 10ft (3m) of straight pipe. Plan for a 2 CFM reduction in air flow for each 12”
(305mm) of straight pipe and 20 CFM reduction for each 90° elbow.
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Connect the dust collector suction hose to the connector port built into the dust source
machine. If there is no port on the source machine, place the suction hose and nozzle as
close as safely possible to the source of the dust material.
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Plan and route the ducting system so that it will NOT become entangled in the dust source
machine in any way.
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Plan and route the dusting system to the dust source machine in a way that does NOT
create a trip hazard.
•
It is recommended to consider static electricity in the ducting system design and employ
methods of preventing and controlling static electricity.