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#SM321 Daflex Shrink/Melt Semi-Rigid Dual Wall 3:1 Shrinkable Polyolefin Tubing
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Available to Order
Product Options
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Description: DAFLEX SM321 is a Semi-Rigid, large ratio, heat shrinkable tubing with a meltable adhesive liner. When 120°C is applied, the tubing will shrink to 1/3 of its supplied size. As the outer wall shrinks the inner adhesive liner melts and flows. When cooled, it offers protection for a variety of electrical applications such as insulating and sealing cable splices, terminations and jacket repairs as well as retrofitting. It provides “sealed-in” protection from chemicals and oils. Daflex SM321 also resists abrasion, UV radiation and is RoHS compliant.
Because of Its’ large shrink ratio and adhesive liner, SM321 offers excellent protection for cable repairs above or below ground, as well as when submersed.
OPERATING TEMPERATURE: -55°C to +125°C.
Meets or exceeds MIL-DTL-23053/15, Class 1 & 2.
Shrink Ratio 3:1.
Flammability: VTFT (IEEE 383)
This series is RoHS compliant.
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Daburn
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Nom.
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Expanded ID
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Recovered ID
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Min. Rec.Wall
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Standard
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Cat. No.
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Size
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IN.
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mm
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IN.
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mm
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IN.
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mm
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Packaging
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SM321-3/4
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3/4”
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0.75
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19
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0.22
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5.6
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0.105
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2.7
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40 X 4ft lengths
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SM321-1 1/2”
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1 1/2”
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1.5
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38
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0.5
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12.7
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0.14
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3.6
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5 X 4ft lengths
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SM321-2”
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2”
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2
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50
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0.75
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19.1
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0.155
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3.4
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5 X 4ft lengths
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SM321-3 “
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3”
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3.54
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76
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1.25
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32
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0.155
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3.4
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5 X 4ft lengths
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SM321-4"
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4"
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4
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102
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1.25
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32
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0.155
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3.4
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5 X 4ft lengths
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SM321-5”"
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5"
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5.11
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130
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1.41
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36
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0.182
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4
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5 X 4ft lengths
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STANDARD COLOR: Black. Red is available to order.
STANDARD PACKAGE: 20FT (5 X 4ft), except SM321-3/4 which is 160FT (40 x 4ft).
(Rev. 2)
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This tubing meets or exceeds MIL-I-23053/1 Class 1 & 2. It shrinks down 50% of its supplied inside diameter, upon exposure to heat of 150°C/302°F - will remain elastomeric - with no cracks. Longitudinal shrinkage +5% to -10% upon complete shrinkage.
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This non-irradiated heat shrinkable PVC tubing is flexible and shrinks 50% when heated to 100°C (212°F) for one minute or less, with approximately 15% longitudinal contraction**. There is controlled shrinkage on the application of heat.
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This heavy wall PVC tubing shrinks 50% in diameter when heated to 95°C / 200°F for one minute or less, and has the same characteristics as the DAFLEX SH265 All Purpose Series, except for its heavier wall. The heavier wall allows for additional protection.
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When exposed to heat 194°F/90°C the tubing shrinks 50% in diameter, with 5% longitudinal contraction. Controlled shrinkage to exact requirement takes place. All Purpose · 2:1 · AMS-DTL-23053/5, CL 1 & 2
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DAFLEX SH277 shrinkable irradiated polyolefin tubing recovers to 25% of its supplied size when full recovery is permitted. Material will shrink with the application of 120°C (250°F), is rated for continuous operation from -55°C to +135°C.
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This series is designed for maximum mechanical strength at stress or points of connection. It is strong, abrasion resistant and is supplied in expanded sizes. It insulates, jackets, splices, connectors, cables & irregular shaped objects.
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DAFLEX SH321 Heat Shrinkable Polyolefin Tubing recovers to 33% of its supplied size. It will shrink, with the application of only 90°C (194°F); it is rated for continuous operation from -55°C to +135°C and will withstand up to 200°C for short durations.
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DAFLEX KYNAR, a semi-rigid shrinkable polyvinylidene fluoride tubing, is free from flaws, pin holes, seams, cracks or inclusions. It is a tough, high temperature, thin wall tubing with high cut through & abrasion resistance. It shrinks 50% in diameter.
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Made of modified extruded FEP, the SH400 series will shrink over inserted objects upon exposure to moderate heat. Heretofore, many joints, parts components, devices could not be protected because of high temperature required for shrinkage.
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DAFLON SH421 Shrinkable PTFE Tubing recovers to approximately 25% of its expanded size when heated to the gel point (621°F). It is now possible to use shrinkable PTFE tubing over objects which require more than the standard 2:1 shrink down ratio.
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This series of Daflon Heat Shrinkable ultra thin wall PTFE offers a range of sizes with ultra-thin walls and a range of shrink ratios. It shrinks at 327°C/621° F.
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Made of modified extruded PTFE (polytetraflourethylene) it will shrink when heated to 621°F (327°C). Suitable where hi-temp protection is required. Color: Natural/Clear.
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Daburn's dual wall polyolefin heat shrinkable tubing is designed to provide a tight moisture proof encapsulating seal. When 110°C/230°F is applied, the inner wall melts & flows, as the outer wall shrinks; forcing the melting wall to fill voids & interstic
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DAFLON SM450 is a dual wall shrink and melt PTFE tubing which gives a tight, moisture-proof seal. It is made from two types of PTFE. The outer wall is TFE and the inner lining is FEP.
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DAFLEX SM278 is a flexible, large ratio, heat shrinkable tubing with a meltable adhesive liner. When 120°C is applied, the tubing will shrink to 25% of its supplied size (4:1). Longitudinal shrinkage is 10% maximum.
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