Class Tube
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 Marshall Class5 Tube Head 5 Watt Head 5W Tube Head  US $349.99
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In a loose tube, fiber is well shielded from being affected by the surrounding cable elements. By stranding the tube, it is also possible to design in strain relief from both temperature changes and mechanical forces.
For these reasons, some variations of the loose tube structure have found widespread use. The loose tube cables are, however, more difficult to terminate and connectorize as compared to the tight buffered fiber cables.
The loose tube can be air filled, but very often a filling gel (compound) is used. The purpose of the filling compound is to prevent water penetration, and it also restricts fiber movements since the compound is much more viscous than air.
If water is present, it can freeze and cause microbends. Water has also a detrimental effect on the mechanical strength of the fiber.
The loose tube is normally made of a plastic and has an inner diameter of typically 4-5 times that of the primary coated fiber.
Loose tube materials for loose tube cables need to possess a relatively high modulus and good processability. During manufacture, optical fiber is fed into the loose tube at a faster rate than it is being produced so that the optical fiber is laid helically within the tube.
To buffer the fibers from each other and from any perturbations on the tube walls, the loose tube is filled with a gel compound similar in composition to the water blocking gels in conventional telecommunication cables. The loose tube material must therefore be compatible with the gel as in conventional cable insulation.
Polypropylene has been used for loose tube but more recently, polyethylene have become more widely used.
Colin Yao is an expert on fiber optic communication technology and products. Learn even more about loose tube fiber cable, armored loose tube, Corning loose tube and optic loose tube on Fiber Optics For Sale Co. web site.
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Plantronics / Voice Tube Acoustic / SS Class / 18093-01 $15.18 Plantronics - Voice Tube Acoustic / SS Class - 18093-01 |
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Avalon VT-737sp Class A Mono Tube Channel Strip $2047.5 Avalon VT-737sp Class A Mono Tube Channel Strip |
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Avalon Vt-737Sp Class A Mono Tube Channel Strip $2047.49 Avalon VT-737sp Class A Mono Tube Channel Strip |
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Palomino Palomino V32 30W Class-A Tube Combo $499.99 Palomino Palomino V32 30W Class-A Tube Combo |
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Class III/IV; Hitch Receiver Tube Cover $5.99 Class III/IV; Hitch Receiver Tube Cover; For 2 in.; Black Nylon; |
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Used Presonus Studio Channel Class A Tube Channel $224.99 In Store Used USED PRESONUS STUDIO CHANNEL CLASS A TUBE CHANNEL |
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Avalon VT-737sp Class A Mono Tube Channel Strip Limited Edition $2250 Avalon VT-737sp Class A Mono Tube Channel Strip Limited Edition |
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Avalon Vt-737Sp Class A Mono Tube Channel Strip Limited Edition $2250 Avalon VT-737sp Class A Mono Tube Channel Strip Limited Edition |
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Used Prs Sweet 16 Class A Tube Combo Rel042112 $1399.99 In Store Used USED PRS SWEET 16 CLASS A TUBE COMBO REL042112 |
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Used Vox Ac30cch 30W Class A All-Tube Head 051412 $549.99 In Store Used USED VOX AC30CCH 30W CLASS A ALL-TUBE HEAD 051412 |
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Tube $10 Tube |
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The Tube $3.99 The Tube |
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BAZOOKA BTA6250D BT SERIES CLASS D AMPLIFIED TUBE 6 250W $359.76 BAZOOKA BTA6250D BT Series Class D Amplified Tube (6 ). Builtin 250W digital amplifier. Dual voice coil subwoofer. Optional speaker output for a BTseries passive bass tube. Exceptional customer service and unparalleled product expertise. |
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Class III/IV; Round Tube Max-Frame; Trailer Hitch $177.99 Class III/IV; Round Tube Max-Frame; Trailer Hitch; Rear; 2 in. Rec.; 4000 lbs. GTW/4000lb Wt. Dist;400 lbs. Tongue Wt/400lb Wt. Dist.; Hitch Crosstube Visible Beneath Bumper; |
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Class III/IV; Round Tube Max-E-Loader; Trailer Hitch $219.99 Class III/IV; Round Tube Max-E-Loader; Trailer Hitch; Rear; 2 in. Receiver; 3500 lbs. GTW; 315 lbs. Tongue Weight; Exhaust Temporarily Lowered For Install; No Drill Req.; |
