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SVL-A, SVL-B, SVL-C, & SVL-D Self-Contained Material Loaders - Venturi Style 18 of 49
SVL-C (Two inlet) Installation
Any SVL loader may be equipped for “ratio” or proportioning loading so that two
materials (usually virgin and regrind) may be loaded simultaneously. The
equipment for this function consists of a “Y” tube and coupler that is installed on
the inlet stub of the loader, two controls (one for each component,) a pick-up
device (feed tube), a second venturi and both compressed air lines and material
hoses. If included at the time of original purchase, all of these items will be
included with your SVL. If not included, they may be added later and installed
along with your original system. (See “Spare Parts Lists” for required part
numbers.)
To Install the Ratio Option
Install the “Y” tube using the included “O” ring coupler (see Fig 6.3) onto the inlet
of the SVL-C loader, then connect the flex hoses to the “Y” tube from the two
venturis. Connect the second venturi to the second solenoid package in a
manner similar to the first venturi/solenoid.
Compressed air must be provided to the second filter/regulator in exactly the
same fashion as the first and the second venturi should be joined to the second
solenoid in a similar manner as the first.
Note: Unlike the other types of loading systems that alternately load virgin and then
regrind(back and forth), compressed air conveying systems load the two materials
at the same time, through the “Y” tube conveying material through both venturi
assemblies occurs at the same time as well.
Position the 2 proximity sensors so they are approximately the same height on
the sight glass, then properly adjust the sensors. (See Section 4-3)
Once completed, the installation should provide dual-energized compressed air
solenoids, connected directly to two regulators, so that the material flow through
each venturi may be regulated independently as material flows.
See Section 4-2, Adjusting Compressed Air Flow to properly adjust air flow.