• Product name: HWS heat shrinkable opening sleeve (heat shrinkable joint tape)

Product introduction:
HWS heat shrinkable band called heat-shrinkable joints w/open/lap cover (outer radiation Crosslinking polyethylene base material, a hot-melt Adhesive lining), commonly known as heat-shrinkable live sets, shrinking open sets, pipe welding heat-shrink wrap film.
Heat shrinkable joints (set) is by radiation cross-linked polyolefin base material and special sealing hot-melt Adhesive compounded at high temperatures. Has high mechanical strength, stable performance, aging resistance, chemical-resistant sealing strong adhesion, easy to operate and.

Product application:
Application 1: used in petroleum, natural gas, chemicals, gas pipeline and other projects in the steel pipe joints and welded joints corrosion, can also be used for tubes
Road coating damage repair (for mending repair damage DIA 30m square meters).
Application 2:2PE, 3PE, FBE, PP, CTE anti-corrosion Coatings for pipeline welding pipe corrosion and anticorrosion of elbow region.

Operating specifications:
Hot contraction fill mouth with (sets) in construction Shi, first will pipeline Preheat to 55 ℃ ~60 ℃, with machine or manual put hot contraction with winding in processing had of pipeline Shang, guarantee hot contraction with take received width not is less than 50mm, in thermal role Xia hot contraction sets along radial contraction, while hot melt rubber melting, and fill and package covered in pipeline surface, and original pipeline anti-corrosion layer formed continuous, and close of anti-corrosion system.

Size

Pipe outside diameter(MM) Heat shrinkable band((MM) Thickness of base film(MM) Hot-melt adhesive layer thickness(MM) Heat-shrinkable length  length(MM) Fixed width(MM) Width of sacrifice(MM)
HWS 159 Φ159 500 1.2 1.0 680 100 ≥150
HWS 219 Φ219 500 1.2 1.0 900 120 ≥150
HWS 273 Φ273 500 1.2 1.0 1070 120 ≥150
HWS 325 Φ325 500 1.2 1.0 1260 120 ≥150
HWS 355 Φ355 500 1.2 1.0 1360 120 ≥150
HWS 406 Φ406 500 1.5 1.0 1520 150 ≥200
HWS 426 Φ426 500 1.5 1.0 1600 150 ≥200
HWS 508 Φ508 500 1.5 1.0 1900 150 ≥200
HWS 529 Φ529 500 1.5 1.0 1940 150 ≥200
HWS 610 Φ610 500 1.5 1.0 2220 150 ≥200
HWS 711 Φ711 500 1.5 1.0 2560 150 ≥200

Other larger sizes can be customized according to customer requirements.

Product features:
1. excellent adhesion, bonding wide range: steel, PE, and epoxy coatings for bonding.
2. corrosion resistance: effectively blocked infiltration of a variety of media, corrosion, resistant to aging and environmental stress cracking resistance, ultraviolet radiation-resistant performance.
3. high mechanical strength: resistance to pressure, impact resistance, high shear strength.
4. use a wide range of environment: within-25~35℃ construction.
5. non-volatile, safe use, save energy and protect the environment.
6. long service life.
7. shrink fast, easy work, workable and simple installation.
8. preheating temperature: Preheat-55 ¡æ ~60 ¡æ brushing and instant install shrink.

Fittings primer Description:
3PE preservative heat shrinkable joints, including a two-component epoxy primers and accessories, 2PE preservation heat shrinkable joints without the matching accessories and primer. 

Product application pictures

Product introduction:
HWS heat shrinkable band called heat-shrinkable joints w/open/lap cover (outer radiation Crosslinking polyethylene base material, a hot-melt Adhesive lining), commonly known as heat-shrinkable live sets, shrinking open sets, pipe welding heat-shrink wrap film.
Heat shrinkable joints (set) is by radiation cross-linked polyolefin base material and special sealing hot-melt Adhesive compounded at high temperatures. Has high mechanical strength, stable performance, aging resistance, chemical-resistant sealing strong adhesion, easy to operate and.

Product application:
Application 1: used in petroleum, natural gas, chemicals, gas pipeline and other projects in the steel pipe joints and welded joints corrosion, can also be used for tubes
Road coating damage repair (for mending repair damage DIA 30m square meters).
Application 2:2PE, 3PE, FBE, PP, CTE anti-corrosion Coatings for pipeline welding pipe corrosion and anticorrosion of elbow region.

Operating specifications:
Hot contraction fill mouth with (sets) in construction Shi, first will pipeline Preheat to 55 ℃ ~60 ℃, with machine or manual put hot contraction with winding in processing had of pipeline Shang, guarantee hot contraction with take received width not is less than 50mm, in thermal role Xia hot contraction sets along radial contraction, while hot melt rubber melting, and fill and package covered in pipeline surface, and original pipeline anti-corrosion layer formed continuous, and close of anti-corrosion system.

Detection based on GB/T23257-2009(Polyethylene coating of buried steel pipeline technical standards)
Test items Unit Test results Technical specifications Test means
Base material
Tensile strength Axial MPa 35 ≥17 GB/T1040.2-2006
Circumferential MPa 28.3 ≥17
Elongation at break Axial % 456 ≥400 GB/T1040.2-2006
Circumferential % 432 ≥400
Micro-softening point 98.6 ≥90 GB/T1633-2000
Brittle temperature <-65 ≥-65 GB5470-1985
Electric strength MV/m 28 ≥25 GB/T1408.1-2006
Volume resistivity Ω.m 2.1×1014 ≥1×1013 GB/T1410-2006
Environmental stress cracking resistance(F50, 50℃) h >1000 ≥1000 GB/T1842-1999
Resistance to chemical corrosion medium(7d) 10%
HC1
Axis Tensile strength retention % 88.4 ≥85 GB/T2357-2009
Elongation retention % 102 ≥85
Week Tensile strength retention % 95.3 ≥85
Elongation retention % 125.6 ≥85
10%
NaOH
Axis Tensile strength retention % 168 ≥85
Elongation retention % 96.6 ≥85
Week Tensile strength retention % 112 ≥85
Elongation retention % 96.3 ≥85
10%
NaC1
Axis Tensile strength retention % 98.5 ≥85
Elongation retention % 89.4 ≥85
Week Tensile strength retention % 123 ≥85
Elongation retention % 106.3 ≥85
Heat aging
(150℃,168h)
Axis Tensile strength MPa 112 ≥14 GB/T1040.2-2006
Elongation at break % 96.3 ≥300
Week Tensile strength MPa 98.5 ≥14
Elongation at break % 89.4 ≥300
Hot-melt Adhesive
Peeling strength (cohesion failure) Epoxy primer N/cm 99.4 ≧70 GB/T2792-1998
The polyethylene layer N/cm 88.2 ≧70


Implementation of the standards: SY/T0413-2002 and SY/T4054-2003 and GB-T23257-2009

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