Single fiber shrinkable protection sleeve

Single fiber shrinkable protection sleeve

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Shrinkable sleeve is applied to the optical fiber closure to fix and protect the optical fiber when splicing.

The sleeve can be divided into two types(single and mass) according to the function. The single type is used for the single-fiber, and the mass type is used for the ribbon fiber. It is different in the reinforcement between two types. The single one realizes the reinforcement by the stainless steel needles, the later one via the ceramic reinforcement member to realize the function.

Mass means there are several cores for the fiber. So the mass sleeve includes 4cores,6cores,8cores,12cores(for types).



Fiber Splice Protection Sleeves parameters:


Shrinking Temperature (°C)

110 ~ 130

Radial Shrinking Rate (%)


Axial Shrinking Rate (%)


Low Temperature Property

No crackle at -55°C lasting 4 hours

Normal Operation Temperature (°C)

-55°C ~ + 135°C

Normal Operature Relative Humidity


Spark- over Strength (kV/mm)


Tensile Strength (Mpa)


Loss at -40°C


Loss at +60°C RH95%




Steel Rod

O.D & Length

Fusion Tube

I.D. & Length

Heat Shrink Tube



O.D.(After shrink)

1.5 & 58mm 1.3 & 60mm 60mm 3.0mm 100pcs/bag
1.2 & 40mm 1.3 & 45mm 45mm 2.5mm 100pcs/bag
1.2 & 36mm 1.3 & 40mm 40mm 2.5mm 100pcs/bag
1.0 & 56mm 0.5 & 60mm 60mm 2.0mm 100pcs/bag
1.0 & 36mm 0.5 & 40mm 40mm 2.0mm 100pcs/bag