Sterling A0567659 User Manual

Page of 118
Page 84 of 118                                                       
SGB Batch Blender with Mitsubishi Controller 
6-7  Pneumatic System Maintenance 
 
The SGB blending system uses plant-supplied compressed air to operate the 
metering and dump valves on the blender. 
 
It is the user’s responsibility to provide CLEAN AND DRY air for the blender to be 
connected to. The air supply should be filtered through a 5 micron air filter and 
have a water separator installed. Oil should not be used unless air dryers are 
installed on the compressed air supply.  In this case, an oiler may be required on 
the blender to keep the air cylinder seals lubricated. 
 
Important!
  As this blender uses air for blender metering functions, 
it is very important to supply clean, dry air to the 
blender. Dirty air can affect blender accuracy, result in 
poor performance and cause injury.  Provide a 5-micron 
air filter on the air supply to the blender and be sure 
excess oil is removed.
 
 
5 MICRON
 
FILTER
 
DRY 60 psi COMPRESSED AIR
 
LUBRICATOR
 
PRES SURE
 
REGULATOR
 
OS/OA BLENDER
 
CUSTOMER-SUPPLIED COMPRESSED AIR COMPONENTS
 
 
 
Sterling provides all pneumatic lines on the blender piped to a single ¼” NPT 
standard pipe thread fitting. The SGB blending system requires approximately 1 
cfm @ 60 psi (1.7 m³/hr @ 4.14 bar) air pressure for proper operation. 
 
The working pressure of the blender cylinders is 60 psi. This is adjustable by the 
regulator supplied on the rear panel of the blender. (It is important that the air 
pressure to the blender is not fluctuating by installing the unit on an air line with 
other equipment using large volumes of air. If this is the case, an accumulator 
tank with a check valve may have to be provided by the customer to ensure the 
blender a steady air supply.) 
 
 
WARNING! 
 
Always disconnect the compressed air supply when working 
on any part of the blender. 
 
 
 
 
 
 
 
SGB