Kingflex
Kingflex
Engineered for low-temperature containment, heavy machinery systems, and rapid installation on high-capacity industrial piping networks.
In modern industrial facilities, large-diameter piping systems are the vital arteries carrying liquid gas, high-pressure steam, cooling chemicals, or municipal water. Effective thermal insulation wrap is not merely a utility accessory—it is a critical mechanical layer required to ensure operational efficiency, prevention of thermal loss, structural integrity, and personnel safety.
Procurement teams within global EPC (Engineering, Procurement, and Construction) companies and heavy manufacturing units evaluate insulation options based on long-term Performance Sustainability and Total Cost of Ownership (TCO). A failure in proper insulation design often results in moisture condensation under insulation (CUI), excessive heat loss, freezing failures in harsh winters, or unacceptable ambient heat gain in cooling pipelines. These issues directly impair thermodynamic performance and elevate greenhouse gas emissions.
Kingflex Insulation Co., Ltd. addresses these challenges by developing tailored materials with precise closed-cell geometries and robust density matrices. Our high-performance NBR/PVC elastomeric rubber foam sheets and tubes block vapor transmission natively, eliminating the need for complex multi-layered secondary moisture jackets in typical ambient runs.
From ultra-low cryogenic environments to high-temperature process plants, our materials operate across a broad thermal spectrum.
At temperatures descending down to -200°C, ordinary polymers embrittle and crack. Kingflex Diolefin Flexible Rubber Foam is formulated with advanced synthetic polymers that maintain elasticity under extreme thermal strain, preventing thermal bridges and moisture vapor ingress on liquid nitrogen and liquid natural gas lines.
Large-scale commercial developments utilize high-capacity chillers. Condensation control on these massive pipes is paramount. Our closed-cell rubber sheet rolls, featuring a cell structure exceeding 98% closed rate, provide a robust barrier against vapor pressure, keeping central air-conditioning systems corrosion-free and operating at peak energy efficiency.
For chemical plants and refinery steam loops exceeding 150°C up to 650°C, our high-density rock wool thermal insulation blankets deliver excellent heat resistance. Non-combustible, chemically neutral, and hydrophobic, these blankets guarantee fire-safe containment and lower structural heat loss across major pipelines.
As a leading national combo of thermal research and manufacturing established by the Jinwei Group, we support global industries with volume, speed, and precision.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our core research, development, and state-of-the-art production departments are situated in Dacheng, China—historically recognized as the capital of green-building materials. As an energy-saving, environmentally friendly enterprise, we centralize materials R&D, mass production, domestic distribution, and global sales channels.
In terms of operations, Kingflex holds energy-saving and consumption reduction as our primary corporate mission. We deliver comprehensive insulation solutions through tailored consultation, bespoke research and development, strict quality manufacturing, installation instruction, and supportive post-sale services. We aim to guide the evolution of the global building and industrial thermal protection industry.
Rooted in excellence, Kingflex was established by the Jinwei Group, which possesses more than 40 years of industry experience. Formed in 1979, the group pioneered industrial thermal insulation manufacturing in the regions north of the Yangtze River, creating a standard of engineering quality that remains a benchmark today.
Our employees are outstanding in their own fields, but together they form the cohesive force that makes Kingflex a highly reliable manufacturing partner. Our team is a tight-knit, talented collective aligned with the shared vision of providing first-class product consistency and engineering service to our global industrial clients.
To support this high level of service, Kingflex has built a comprehensive human resources infrastructure. This includes 8 professional thermodynamic engineers in our R&D Department, 6 international customer support managers, and 230 highly trained operators running our precision extrusion and foaming machinery in our manufacturing facilities.
Our raw materials, intermediate structures, and finished pipe wraps undergo continuous laboratory stress-testing to meet international safety and performance criteria.
Industrial components must meet strict national and regional safety standards to pass building permits and safety audits. Kingflex has secured international testing certifications validating that our elastomeric rubber foam sheets and rock wool systems provide self-extinguishing flame resistance and zero toxic smoke propagation under standard tests.
Our products conform to the following specifications to ensure consistency across architectural plans and industrial layouts.
| Parameter | Value / Range |
|---|---|
| Material Base | NBR (Nitrile Butadiene Rubber) / PVC Blend |
| Thickness Range | 6mm to 50mm |
| Core Density | 40 kg/m³ to 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ |
| Closed Cell Ratio | > 98% |
| Moisture Resistance | High resistance factor (μ ≥ 10,000) |
| Parameter | Value / Range |
|---|---|
| Material Base | NBR / PVC Foam Compound |
| Wall Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm (Supports customization) |
| Density Spectrum | 40 kg/m³ to 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ |
| Special Treatment | Even internal spraying & outer skin finish |
The closed-cell configuration prevents air currents within the insulation, giving our materials excellent thermal conductivity ($\lambda \le 0.034 \text{ W/(m}\cdot\text{K)}$ at $0^\circ\text{C}$). This keeps high-temperature steam lines warm and cold water pipelines cold. It also helps prevent surface condensation in high-humidity facilities.
The compression resilience of over 80% ensures the wrap keeps its thickness and insulation capability around bends, hangers, and structural pipe brackets.
We maintain open lines of communication, providing detailed test records, tracking, and customized manufacturing support for global purchasers.
A visual inspection of our automated production floors, showing high-density material processing and custom foam pipe extrusion lines.
Selected photos showing our insulation systems applied on pipelines across construction, power generation, and petrochemical industries.
Review detailed technical explanations regarding performance, applications, standards, and logistics for our pipe insulation products.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure makes it particularly effective in stopping moisture condensation on chilled water pipes and cooling lines.
Yes, our rubber foam insulation products are flame retardant. They are formulated to meet international building and industrial safety regulations, including UL94 standards and BS 476 flame propagation controls, meaning they self-extinguish when the direct flame source is removed.
Rubber foam is a flexible, closed-cell, moisture-proof material suitable for low-temperature, refrigeration, HVAC, and condensation-sensitive systems. Rock wool is a high-temperature resistant, fibrous mineral wool. It is suitable for high-temperature pipelines (boiler lines, steam loops) and offers excellent fire resistance, but typically requires a vapor jacket in damp environments.
Yes, we offer comprehensive OEM services. We can customize sheet thicknesses, pipe inner diameters, custom outer foil backings, and physical shapes to fit the specific needs of large-scale engineering projects.
Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other major international certifications. This ensures compliant quality and smooth imports for projects worldwide.
Yes. Every production run is cataloged with trace batches. We trace the raw material compounds, manufacturing conditions, quality control tests, and shipping dates to ensure long-term product accountability.
We produce standard thicknesses ranging from 6mm to 50mm. Specialized thicknesses can also be custom-manufactured to match custom design needs.
Under standard operating temperatures and proper installation conditions, the service life of our elastomeric rubber foam materials is approximately 10 to 15 years in typical environments.
From noise-dampening acoustic open-cell panels to high-temperature rock wool wraps, we supply comprehensive options for industrial facilities.
Detailed lists of dimensional specifications, application areas, and materials engineering benefits for project matching.
Material: NBR/PVC Compound
Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Service Temp: -40℃ to 105℃
1. Highly uniform foaming, >98% closed cell density.
2. Constant thermal conductivity values in high moisture.
3. Elastic compression recovery above 80%.
4. Complies with Class 0 fire standards (self-extinguishing).
• Commercial HVAC air duct wrap.
• Structural acoustic wall panels.
• High-volume chilling lines.
• Transit vehicles and marine engine rooms.
Material: NBR/PVC Compound
Thickness: 9mm - 40mm
Inner Diameter (ID): 6mm - 114mm
Density: 40 - 55 kg/m³
1. Smooth interior wall for slide-on fitting.
2. Built-in moisture barrier reduces surface condensation.
3. Elastic compound layout absorbs noise.
4. Resists chemical vapors, mild acids, and grease.
• Chilled water lines & condensate collection.
• Mechanical plant piping and HVAC systems.
• Domestic cold/hot plumbing freeze protection.
• Process loops in pharmaceutical cleanrooms.
Get in touch with our technical sales team for dimensional configurations, ASTM laboratory testing data, bulk wholesale pricing sheets, or custom OEM production planning. We export worldwide with complete traceability and quality standards compliance.
Contact Our Engineers