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S3DN Anticorrosive double-wall heat shrinkable tube for gas pipeline

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Introduction      
Cross-linked polyolefin material, double-wall heat-shrinkable tube, with black anti-corrosion hot melt adhesive inside. It is suitable for sealing and anticorrosion protection of steel pipe welds and wall-piercing parts of urban gas pipelines. The hot melt adhesive is firmly bonded to the steel pipe, and the product has a long service life.

 

Features      
Operating temperature: -55~105      
Minimum full shrinkage temperature: 135       
Shrink ratio: 2:1      
Sealing and anti-corrosion, resistant to mechanical damage      
Colour: Black      

 

Technical Data        
Property Test Method Value
Tensile Strength ASTM D2671 ≥ 12 MPa
Breakdown elongation ASTM D2671 ≥ 300%
Aging(158/168hrs)
Tensile Strength
Breakdown elongation
ASTM D 2671
≥ 10 MPa
≥ 200%
Embrittlement temperature ASTM D 2671 ≤ -65℃
Heat shock(200/4hrs) ASTM D 2671 No drips, no flow, no cracks
Glue's ring and ball softening point ASTM E28 ≥ 85 
Peel strength of glue to steel(23) ASTM D2671 ≥ 30 N/cm2
Dielectric strength ASTM D2671 ≥ 15 kV/mm
Volume resistivity ASTM D2671 ≥ 1.0×1013 Ω·cm

 

Dimension          
Size Applicable steel pipe
Outer diameter
As supplied(mm) After shrink(mm) Supplied length
S3DN Diameter(Min.) Diameter(Max.) W T(nomal) m/pc
DN15 20~26 30 1.5/2.0/2.5* 18 ≤1.22
DN20 25~35 40 1.5/2.0/2.5 20 ≤1.22
DN25 30~45 50 1.5/2.0/2.5 25 ≤1.22
DN32 35~55 60 1.5/2.0/2.5 30 ≤1.22
DN40 40~65 70 1.5/2.0/2.5 35 ≤1.22
DN50 50~75 80 1.5/2.0/2.5 40 ≤1.22
DN65 60~85 90 1.5/2.0/2.5 45 ≤1.22
DN80 70~100 120 1.5/2.0/2.5 60 ≤1.22
DN100 90~120 160 1.5/2.0/2.5 75 ≤1.22
Note: 1.5mm, 2.0mm, 2.5mm three wall thicknesses are available          

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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S3DN Anticorrosive double-wall heat shrinkable tube for gas pipeline
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Contact

Address: Tangjia Industrial Park, Shihe Street, Puwan New District, Dalian
Tel:
0411-87166661 87166662    0411-87166663 87166665

International line:  +86-411-87166669

E-mail: upolymer@upolymer.com 

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