
Heat shrinkable sleeve/belt developed and manufactured by Qingdao Huashida Machinery Co., Ltd for anti-corrosion of pipeline, is composed by radiation cross-linked polyethylene backing and adhesive (2 layers).
During connecting pipes, the hot melt adhesive is squeezed into the joint by the shrink power to form a perfectly sealed surface after being heated. It has good performance in pipeline waterproof, anti-chemical corrosion, insulation and anti-aging.
Application area:
It is mainly used for wrapping around the pipe, anti-corrosion of kinds of pipe joints, and repairing pipes.
For example Oil and gas pipe, PU insulation pipe, 3PE/2PE steel pipe.
Feature of our heat shrinkable sleeve:
1.Fast shrinkage speed,
2.good waterproof performance,
3 good anti-corrosive performance,
4.long service life, convenient transportation and fast construction.
5.using pure PE material and imported adhesive for ensuring the quality
TECHNICAL PARAMETERS
| NO | Test Item | Unit | Performance | Test Result | Test Method | ||
| Back Material | |||||||
| 1 | Tensile Strength | MPa | ≥17 | 19.47 | ASTM D638 | ||
| 2 | Elongation | % | ≥400 | 626 | ASTM D638 | ||
| 3 | Vicat Softening Point | ºC | ≥90 | 92 | ASTM D1525 | ||
| 4 | Brittleness Temperature | ºC | <-65 | <-65 | ASTM D2671C | ||
| 5 | Dielectric Strength | MV/m | ≥25 | 33.13 | ASTM D149 | ||
| 6 | Volume Resistivity | Ω.m | ≥1*1013 | 1.1*1013 | ASTM D257 | ||
| 7 | Environment Stress Crack | h | ≥1000 | >1000 | GB/T1842 | ||
| 8 | Chemical resistance (7d) | 10% HCI | Tensile strength | MPa | ≥85 | 104.9 | ASTM D638 |
| Elongation | % | ≥85 | 96.3 | ASTM D638 | |||
| 10% Naah | Tensile strength | MPa | ≥85 | 102.1 | ASTM D638 | ||
| Elongation | % | ≥85 | 95.6 | ASTM D638 | |||
| 10% NaCl | Tensile strength | MPa | ≥85 | 108.3 | ASTM D638 | ||
| Elongation | % | ≥85 | 94.1 | ASTM D638 | |||
| 9 | Thermal aging (150ºC,168h) | Tensile strength | MPa | ≥14 | 20.7 | ASTM D638 | |
| Elongation | % | ≥300 | 630 | ASTM D638 | |||
| NO. | Test Item | Unit | Performance | Text Result | Text Method | |
| Adhesive | ||||||
| 1 | Softening Point | ºC | ≥90 | 90.1 | ASTM E28 | |
| 2 | Brittleness Temperature | ºC | <-15 | <-15 | ASTM D2671C | |
| 3 | Lap Shear | MPa | ≥1.0 | 1.5 | ASTM D1002 | |
| 4 | Peel Strength (23±2ºC) | Steel | N/cm | ≥70 | 145.6 | ASTM D1000 |
| Primer | N/cm | ≥70 | 205.9 | ASTM D1000 | ||
| PE layer | N/cm | ≥70 | 190.0 | ASTM D1000 | ||
| Non-solvent Epoxy Primer | ||||||
| 5 | Shear of cured primer | MPa | ≥5.0 | 12 | SY/T0041 | |
Heat shrinkable sleeve for Oil & Gas Pipe

Heat shrinkable sleeve for Thermo Insulated Pipe

Specification of heat shrinkable sleeve for underground buried steel pipe and insulated pipe
| No. | Size, mm | Length, mm | Patch | |
| Length, mm | Width, mm | |||
| 1 | Ф159*500 | 670 | Length equals the width of heat shrinkable sleeve | 80 |
| 2 | Ф219*500 | 860 | 100 | |
| 3 | Ф273*500 | 1000 | 100 | |
| 4 | Ф325*500 | 1200 | 100 | |
| 5 | Ф355*500 | 1300 | 100 | |
| 6 | Ф406*500 | 1460 | 120 | |
| 7 | Ф508*500 | 1800 | 120 | |
| 8 | Ф610*500 | 2170 | 120 | |
| 9 | Ф711*500 | 2500 | 150 | |
| 10 | Ф813*500 | 2880 | 150 | |
| 11 | Ф1016*500 | 3480 | 150 | |
| 12 | Ф1219*500 | 4120 | 200 | |
| 13 | Ф1420*500 | 4780 | 200 | |
For metal reinforced HDPE corrugated pipe (drainpipe)

Specification of Heat Shrinkable Sleeve for HDPE spiral pipe and metal reinforeced corrugated pipe
| Pipe Diameter, mm | Length, mm | Width, mm |
| DN300 | 1200 | 300 |
| DN350 | 1430 | 300 |
| DN400 | 1600 | 300 |
| DN450 | 1770 | 300 |
| DN500 | 1900 | 300 |
| DN600 | 2300 | 300 |
| DN700 | 2560 | 300 |
| DN800 | 2900 | 400 |
| DN900 | 3250 | 400 |
| DN1000 | 3600 | 400 |
| DN1200 | 4250 | 400 |
| DN1400 | 4940 | 500 |
| DN1500 | 5290 | 500 |
| DN1600 | 5630 | 500 |
| DN1800 | 6320 | 500 |
| DN2000 | 7010 | 500 |
| DN2200 | 7700 | 500 |
| DN2400 | 8390 | 500 |
Remark: The above is standard size. Production will be according to the buyer's requirements.
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