Audited Supplier
Silicone rubber cold shrink tube, specifically designed for photovoltaic connectors, is an insulating sleeve made from special silicone rubber, pre-expanded over a removable support tube. Its very high expansion ratio allows it to accommodate the radial size differences between photovoltaic connectors and optical cables. When in use, simply position it and remove the support tube. It utilizes its radial shrinking force to form a tight encapsulation, providing insulation, dust prevention, waterproofing, and sealing effects.
Features
• Continuous operating temperature: -55°C~180°C
• Shrink Ratio : 6:1 or so .Suits for an extensive range of cable sizes because of the shrinkage
• Retains its resiliency and pressure even after prolonged years of ageing and exposure, seals tight against moisture and water
• Good weather resistance, ozone ageing, ultraviolet and salt mist corrosion resistance, performs stably under long-period exposure to the sun
• Simple installation, requires no special heating tools , and adhesive to seal the connections
• Standard color: black(Other colors can be customized)
Technical Data
| Properties | Typical Data | Test Method |
| Hardness | 40±5 Shore A | GB/T 531-2008 |
| Tensile strength | ≥7.0MPa | GB/T 528-2009 |
| Tensile strength after aging MPa (232ºC×7 D) | ≥ 60% of initial value | / |
| Elongation at break | >800% | GB/T 528-2009 |
| Elongation at break after aging % (232ºC×7 D) | ≥25% of initial value | / |
| Tear strength | ≥25kN/m | GB/T 529-2008 |
| Volume resistivity | ≥10 12Ω.m | / |
| Flammability | HB | UL 94 |
| Requirements for UV/light aging resistance test | Tensile strength ≥75% of initial value, no surface damage | / |
Dimensions
| Size (mm) | Inner Diameter (mm) | Min Cable Outer Diameter (mm) | Max Cable Outer Diameter (mm) | Full Recovered Length L(mm) |
| VS-25-175 | Ф25 | 6.0 | 20.0 | 175 |
Suzhou Volsun Electronics Technology Co.,Ltd. was founded in 2006. We keep focusing on the R&D, production and sales in insulation, sealing & protection solutions for over 18 years.
Quality is our culture. Volsun has a modern quality management system, which has passed a series of quality system certification such as IATF16949, ISO9001 etc. And we have gained some advanced titles such as Jiangsu famous scientific and technical corporation, China new high-tech enterprise etc. have independent intellectual property rights, 88 patents and 97 product certifications.
Up to now, Volsun cooperated with customers from 88 countries, we offer suitable sealing, waterproof solutions for some well-know enterprises in communication,Automobile, Power industry etc.
| Trade terms | FOB, EXW, CIF, DDU, DDP, CFR |
| Payment terms | T/T, L/C, Negotiable |
| Supply capability | 100000 pieces per month |
| Lead time | usually 2-3 working days |
| Shipment | Express, Air, Sea |
| Port | Shanghai, Ningbo, Shenzhen |
| Sample availability | Yes |
| Sample time | usually 1-2 days |
| Packaging | Normal: Plastic bag & Carton & Pallet Special: Customized packing |
