Pipeline coating heat shrinkable wraparound sleeves

Superior resistance to Cathodic disbondment Pipeline coating heat shrinkable wraparound sleeves

Product profile

       Heat Shrinkable Tubular Sleeves (HSWS) consist of a cross-linked polyolefin backing, coated with an adhesive which effectively bonds to steel substrates and common pipeline coating including polyethylene and fusion bonded epoxy.

      Tubular type sleeves are installed before joining the pipe ends by sliding the coat from a free end of the pipe onto the area to be coated.

     It is designed for corrosion protection of flanges, bell and spigot joints and other high profile couplings.

Features & Benefits

  Heat Shrinkable Tubular Sleeves are superior performance heat shrinkable products designed for corrosion protection of flanges, bell and spigot joints and other high profile couplings.

  T-900 provide great corrosion protection, Superior resistance to Cathodic Disbondment and excellent durability against abrasion and chemical attack. The result is effective, good performance of sealing, wide application, easy to operate and preheating temperature low (50 ºC), long term protection against corrosion.

  Tubular design allows for convenient and fast installation because less time is spent handling the sleeve and closure  

  Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.

  High performance adhesive provides excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection    pipeline coating heat shrinkable wraparound sleeves

Specification: (mm)

  Pipeline size: from Φ30mm to Φ1000mm

  Sleeves width: 100mm, 150mm, 200mm, 300mm, 450mm, 500mm, 600mm, 900mm

Model: T-900-510/ Φ711

T-900—Tubing type Heat shrinkable wraparound sleeves

505—Roll Width (as supplied)

Φ711—Joint or pipeline Diameter

  Note: The Size can be ordered according to customers’ demand

Properties of sleeve other

Width deviation (max)	±10% width or 0.25 in.(6mm),Whichever is smaller	AWWAC216-5.3.1
Thickness(min)	60mil 1.5mm 45mil 1.1mm	AWWAC216-5.3.2
Dieletctric strength	400V/mil(15V/um)	ASTM D149
Volume resistivity	1014 ohm-cm	ASTM D257
Adhesion to steel	15lb/in. width (25N/cm)	ASTM D1000
Lap shear	12 psi	ASTM D1002
Heat shock	No visual cracking, flowing, or dripping	AWWAC216-5.3.8
Tensile strength	2200 psi	ASTM D638
Elongation 23	400%	ASTM D638
Impact resistance	25 in.-lb (282cm-N)	ASTM G14

A.            Properties of sleeve PE backing

Properties	Test Method	Typical Values
Tensile strength at 23 ºC kg/cm2	ASTM D638	170Min
Elongation at 23 ºC,%	ASTM D638	500Min
Volume resistivity, at 23 ºCΩ.m	ASTM D257	1*1014min
Dielectric strength KV/mm	ASTM D149	25
Water absorption at 23 ºC 24hrs.wt	ASTM D570	≤0.1
Water-vapour transmission (max)	ASTM E96	0.05g/h/ m2
Low Temp. Brittleness ºC	ASTM D764	-65

B.            Properties of Melt Adhesive Sealant

Properties	Test Method	Typical Values
Softening point, ºC	ASTM E28	100
Peel strength 250mm/min At 23 ºC At 50 ºC	ASTM D1000	≥70
Lap shear strength (N/ m2) At 23	ASTM D1002	≥1.0

C.            Properties of Installed sleeve

Properties	Test Method	Typical Values
Impact Resistance	ASTM G14	≥50
Cathodic Disbondment At 23 ºC 30 days mm rad	ASTM G8	≤10
Dielectri Breakdown Voltage 23 ºC MV/N	ASTM D149	≥25

Pipeline coating heat shrinkable wraparound sleeves