AEC VacTrac Series Conveying Systems User Manual
Page 44
Page 44
VacTrac™ Series Conveying Systems
WH2-605A.4
Mechanical Components
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Cut tube ends square and chamfer edges smooth. Use a
fixed band saw or power miter saw when making cuts. You can
use a tubing cutter on aluminum tubing, but you need to use a
saw with a carbide or diamond-impregnated saw blade when
cutting stainless steel. Chamfer outer and inner edge cuts with
a die grinder or a hardened rasp file.
;
Clean all tubing after cutting and before assembly. Dampen a
rag in a non-volatile cleaning solvent, and run it through all
tubing and couplers to remove sediment from shipping or
cutting. Run a quantity of low-grade material through new lines
to remove any remaining sediment, then discard the material
immediately.
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Tube ends must butt together inside couplers.
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Tighten tube coupler nuts from the center outward to ensure
a tight seal and allow proper contact of the internal grounding
strip.
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Each material tubing run must maintain an electrical
continuity through the tubing and couplers, from pickup
point to vacuum hopper. Grounded flexible hose is
recommended.
;
If you must cut bends, cut the straight section, leaving enough
straight length for complete insertion into a coupler.
;
You can attach a quick-change or standard tube coupler to
vinyl flex hose by inserting a stub of hard tube into the hose
and securing it with a hose clamp. Be sure enough tube extends
from the hose to properly install the quick-change or coupler.
Make sure that you put clear silicone caulk around adjoining
tube seams for exterior bolted couplers.
;
If you use stainless flexible material hose, the material flow
must be in the direction as indicated by the arrows on the hose.
Material direction is not critical with vinyl flex hose.
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Bring all truck fill lines to a central location, such as a silo,
unless otherwise specified.
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All rail car manifold Y-tubes must be installed with a ten-
degree (10º) downward slant from horizontal on the leg
section. Make sure that space between rail car manifold
Y-tubes are fifteen feet (15’/4.5 meters) on center to allow
proper alignment between rail car discharge ports and the
manifold Y-tubes.