High-performance elastomeric thermal rolls and sleeve tubes developed for energy conservation and condensation control.
Modern building services, petrochemical infrastructures, and HVAC installations face unprecedented energy regulation, structural complexity, and demanding environmental pressures. System condensation, energy losses, and pipe corrosion represent millions of dollars in maintenance expenses. In this landscape, Tubular Sleeve Pipe Insulation serves as a crucial component of industrial piping engineering.
By trapping clean, dry air within billions of microscopic closed cells, elastomeric sleeves suppress heat migration. Because moisture acts as a potent thermal conductor, maintaining high water-vapor resistance ($\mu \ge 10,000$) is essential for process efficiency. Modern installations require chemical compatibility, flame-retardant properties, and extreme mechanical durability across operating ranges spanning from ultra-low cryogenic systems up to thermal steam processes.
Consistent thermal conductivity ($\le 0.034$ W/mK at 0°C) prevents energy leaks on hot/cold water pipelines and HVAC equipment.
High moisture resistance prevents water vapor infiltration, eliminating mold risks and structural corrosion issues.
Fire retardant properties meet strict regulatory standards like BS 476, UL94, and ASTM to limit smoke spread and fire propagation.
Kingflex Insulation Co., Ltd. is an industry-leading manufacturing and trading group specializing in advanced thermal insulation systems. Located in Dacheng, China—a hub for green building materials—we combine R&D, manufacturing, and distribution within one operation. We design energy-saving products focused on lowering energy consumption and protecting piping infrastructure.
Kingflex offers comprehensive insulation solutions, including pre-sales consulting, custom product design, manufacturing, and installation guidance. Our solutions serve major developers and mechanical contractors worldwide, helping to improve efficiency across global building and processing industries.
Founded by the Jinwei Group, which holds over 40 years of manufacturing history since its establishment in 1979. We were the first thermal insulation manufacturer north of the Yangtze River, growing from a regional supplier into a major global exporter.
The Kingflex team operates with a unified vision of delivering reliable products and support. Our engineering department includes 8 R&D specialists, supported by 6 international sales managers and 230 production personnel.
Technical dimensions and material behavior curves for Kingflex elastomeric NBR/PVC systems.
| Property Parameter | NBR/PVC Elastomeric Sheet Roll Value | NBR/PVC Elastomeric Pipe Sleeve Value |
|---|---|---|
| Base Material Structure | Closed-Cell Nitrile Rubber/PVC blend | Closed-Cell Nitrile Rubber/PVC blend |
| Standard Thicknesses | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm |
| Inner Diameters (ID) | N/A (Flat sheet/roll layout) | 6mm up to 114mm (Nominal pipe sizes) |
| Density Range | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Service Temperature Boundaries | -40℃ to 105℃ (Ultra-low down to -200℃ for specialty lines) | -40℃ to 105℃ (Ultra-low down to -200℃ for specialty lines) |
| Thermal Conductivity ($\lambda$) | $\le 0.034$ W/m·K at 0°C | $\le 0.034$ W/m·K at 0°C |
| Closed Cell Proportion | Over 98% uniform cell structure | Over 98% uniform cell structure |
| Moisture Permeability | Low moisture absorption, high resistance factor | Low moisture absorption, high resistance factor |
Continuous testing ensures compliance with international fire, thermal, and environmental standards.
How engineering firms use Kingflex elastomeric systems in diverse environments.
Used to control condensation on chilled water pipes and ductwork. Our dust-free, non-fibrous design maintains clean air conditions in hospitals, offices, and semiconductor manufacturing facilities.
Protects piping lines in power plants, oil refineries, and chemical facilities. The high-density formulation handles high vibration, thermal stress, and chemical exposure across varied weather conditions.
Our specialty cryogenic systems (Dolefin & Alkadiene elastomers) are rated for temperatures down to -200°C. They are used to prevent boil-off gas and control condensation in LNG, liquid nitrogen, and oxygen piping.
Designed for large-diameter pipelines, duct systems, and irregular shapes. Its flexible design allows it to wrap around flat, round, or complex equipment geometries.
Pre-extruded sleeves that slide over copper, steel, or plastic pipes. They are designed for copper refrigeration lines, hot/cold domestic water pipes, and process lines.
Kingflex operates modern manufacturing systems in Dacheng, China. Our facilities utilize vertical production integration, connecting polymer feedstocks directly with our extrusion lines. This helps control material quality and protects our supply chain from raw material price volatility.
Our proximity to Tianjin Port provides reliable logistics connections for global shipping. We utilize automated material handling, computerized extrusion, and online curing ovens to maintain consistent product quality. Our production capacity allows us to manage large project orders while maintaining fast delivery timelines.
Our operations follow international environmental and manufacturing standards. This focus on process control ensures consistent product performance from raw material processing through final delivery.
Our ongoing R&D efforts to improve product performance and sustainability.
Developing specialized cryogenic foams capable of handling temperatures down to -200°C without cracking, designed for LNG transport pipelines.
Integrating silica aerogels into elastomeric matrices to reduce thermal conductivity to less than 0.028 W/m·K, allowing for thinner insulation profiles.
Replacing petroleum-derived polymers with bio-based alternatives to lower the carbon footprint of our manufacturing process.
Developing smart jackets with built-in thermal sensors to monitor pipeline temperatures and detect moisture leaks in real-time.
To support global projects, Kingflex products are tested and certified to international standards. These certifications ensure compliance with regional building codes and safety regulations.
Our products are certified to BS 476 (Part 6 & 7 Class 0 / Class 1) for fire safety, UL94 for flammability, and ASTM criteria for moisture absorption and thermal transmission. Our materials are also registered under REACH and RoHS, confirming they are free of hazardous substances.
We work with global logistics networks to manage delivery, custom clearance, and tracking. Every product batch is traceable back to its production line, ensuring transparency for all project materials.
We maintain transparent, responsive communications with our international procurement partners.
Answers to common engineering and technical questions about Kingflex insulation products.
Specialty cryogenic systems and elastomeric tube lines designed for low-temperature applications.
Kingflex
