Page 2888 - Flipbook_SolidDesignSoutheast2020

Flexible Conveyor Outer Tubes

Protect valuable uptime and process materials from the early wear and worry typical of thin-wall tube.
Double the thickness of typical replacement tube, National Bulk Equipment thick-gauge tube is available
in up to half-inch wall thickness; in either UHMWPE or polypropylene construction. The extremely smooth
interior surface adds additional protection from cross contamination. From the inside out, NBE outer
tubes provide long-term performance, regardless of demanding process materials, duty cycles, or both.

TUBE O.D. (IN.) BEND
UHMWPE Outer Tubes (NOMINAL SIZE) DIAMETER (IN.) RADIUS (FT.) MODEL NO.
2 1.837 OD × 1.60 ID 6 200 UHMWPE
UHMWPE provides the highest 2.32 OD × 2.06 ID 6 232 UHMWPE
impact strength and tensile
strength of any thermoplastic. 2.5 2.50 OD × 2.00 ID 6 250 UHMWPE
It is FDA and USDA approved, 2.65 OD × 2.25 ID 6 265 UHMWPE
non-corrosive, temperature 2.96 OD × 2.70 ID 10 300 UHMWPE
resistant, and aids in material
flow. UHMWPE outer tubes can 3.5 3.115 OD × 2.75 ID 10 312 UHMWPE
bend to a radius as tight as 6 3.50 OD × 3.00 ID 12 350 UHMWPE
feet; enabling conveying tube 4.20 OD × 3.83 ID 20 420 UHMWPE
to run around layout obstacles. 4.5 4.50 OD × 4.00 ID 20 450 UHMWPE
UHMWPE outer tubes are
available in lengths up to 40 feet. 4.70 OD × 4.36 ID No bend 470 UHMWPE
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5.00 OD × 4.50 ID No bend 500 UHMWPE
Denotes National Bulk Equipment standard products.

TUBE O.D. (IN.)
Polypropylene Outer Tubes (NOMINAL SIZE) DIAMETER (IN.) MODEL NO.
6.5 6.625 OD × 6.00 ID 650 PP
For applications requiring high-volume 8.5 8.625 OD × 8.00 ID 850 PP
conveying, or conveying of larger materials,
polypropylene outer tubes provide large- Denotes National Bulk Equipment standard products.
diameter tube construction. Polypropylene
tube is non-bending, and is available in
lengths up to 30 feet.

Flexible Screw Conveyor Performance Upgrade Kit

Improving total process performance is possible The National Bulk Equipment discharge head
without a total system replacement. When original is built for strength; its gear drive and motor
equipment specifications are not enough. When are specified for power, performance, and
application requirements have changed. Or, when longevity. Optimal output torque and motor
unplanned downtime caused by under-built horsepower combine to bring maximum power
equipment is too frequent; specify the flexible screw and efficiency to the most challenging flexible
conveyor performance upgrade kit from National screw conveying operations. NBE motor and
Bulk Equipment. This performance upgrade kit gear drive specifications turn difficult material
includes the discharge head, flexible screw, and types, capacity requirements, and conveying
outer tube; and is designed to easily interface with distances from problems to production.
most any process hopper or material supply source.

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