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Speedaire Operating Instructions and Parts Manual
Speedaire
Use of Air Motors in Hazardous (Classified) Locations
To-date, there are no known standards governing the operation of air motors in Class I and Class II Hazardous
(Classified) Locations like those that exists and are defined by Underwriters Laboratories Inc. (UL) for electric
motors. As such, please note the following:
An air motor is typically not a source of sparks. However, it is possible to create an external spark if something
strikes against the air motor housing or shaft (e.g., a wrench, hammer, etc.).
An air motor housing enclosure is not designed to contain an internal explosion as is the case with UL Certified
Hazardous Location Electric Motors. The only possible ignition source of a hazardous atmosphere inside an air motor
would be the result of contact between the stationary housing and the rotating parts. Although highly improbable, an
internal explosion of a hazardous atmosphere inside an air motor is possible.
Finally, to ensure the safe operation of an air motor in a hazardous location application, always follow the safety
information, installation, operation and maintenance instructions provided herein.
Most important: Prior to installing and operating an air motor in a hazardous location, always consult with a qualified
engineer, local officials and your insurance carrier representative for a final determination of a safe operating
environment.
Mounting and Connection
The motor must be installed to a solid metal base plate,
which is installed to a stable and solid operating surface.
A shock absorber is needed to reduce the noise and
vibration. A simple shut-off valve or a pressure
regulator is also needed to control the motor.
Main Air Line
Regulator
Lubricator
Filter
Shutoff Valve
Air Motor System
Check the motor's airflow direction. A single rotation
motor is only suitable for operation in one direction. A
muffler is required to be connected to the air outlet of
single rotation motors. Unlike the single rotation motor,
the reversible motor will work equally well in both
directions. Connect a 4-way valve with piping to both
air ports of the motor to make reversing possible.
Connect the sound absorber on the air exhaust port
connection. Remove the shipping plugs from the ports
and save them for future use during shutdown.
Before connecting the motor, an air filter is needed to
be installed in the air line. An air pressure regulator to
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Rotary Vane Air Gear Motor
Air Line
Muffler
Air Driven Motor
control motor torque and a flow control (shut-off) valve
to control motor speed is also required.
Install an automatic air line lubricator in the air line
within 18 inches (0.5 meter) or as close as possible to
the air motor. The lubricator needs to be installed
upstream of the air motor so that the oil mist will be
blown directly into the motor. Make sure the lubricator
is always filled with oil.
Before connecting to the ports, clean the compressed air
connections with low pressure air to remove any dirt or
debris.
Always use air lines that are the same size, or larger,
than the air motor inlet port (refer to port size in the
Specifications chart).
When making connections, you
should not add any thrust to the
end or side of the shaft.
Do not use a hammer on the shaft or connections.
Accessories
A muffler is packed in the box with the air motor but is
not installed. A moisture trap and 5 micron filter in the
air line ahead of motor is recommended (not provided
with product and needs to be purchased separately).
Air stream from product may
contain solid or liquid material
that can result in eye or skin damage.
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22UX54, 22UX81
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