Avoiding Expensive Service Calls With Rotary Screw Air Compressors
In industrial applications, oil flooded rotary screw air compressors are the most popular. There are many myths about rotary screw compressors that seem to be based around the concept of winterizing.
Cold weather does cause problems that are unique to this type of compressor and these problems can be very expensive. However, these problems can be avoided by following some simple rules.
Cold weather sometimes causes condensation to buildup in the air lines of the rotary screw air compressors. This can cause sensors to send the wrong signals to the screw compressors computer control systems.
This will cause the compressor to run with a full load until someone notices the constant lifting of the pressure relief valves. Condensation is removed through drains that are placed strategically in the air system.
These discharge lines are usually taken to a drain point outside of the building. During cold weather, these lines can become clogged with ice, forcing condensation back into the air system. If not properly drained before the compressor is shut down, this can damage some of the compressor parts and expensive components.
It is common for businesses to take their rotary screw air compressors out of service during the winter months. This is good only if the proper steps are taken to winterize the screw compressors.
This includes oil and filter changes. Used oil generates an acid that can damage the bearings in the motor and the compressor parts. Manually rotating the motors and keeping the rotors oiled are also important to avoid seizing at startup.
Proper maintenance of the screw compressors is important to avoid expensive service calls and to minimize downtime.
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February 12th, 2010 at 1:05 pm
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