Engineered rubber foam sheet rolls and flexible piping constructed to minimize heat flux and block condensation.
In modern mechanical design, thermal efficiency is not merely an optional performance metric; it is a regulatory and financial imperative. Air conditioner ducting and refrigeration lines are subjected to relentless thermal cycling, making them highly vulnerable to energy loss and structural failure through vapor condensation.
Using high-grade Elastomeric NBR/PVC closed-cell rubber foam is essential for maintaining optimal COP (Coefficient of Performance) in systems. Closed-cell rubber foam functions as a comprehensive, integrated thermal block and vapor barrier. This structural configuration delivers superior performance compared to open-cell alternatives, which can absorb moisture and degrade over time.
How state-of-the-art infrastructure and concentrated material supply chains create unmatched value for global HVAC contractors.
Kingflex runs 5 large-scale automated assembly lines in Dacheng, China, generating over 600,000 cubic meters of high-density elastomeric insulation annually. This scale maintains consistent supply lines during peak seasonal demand.
Being situated in the center of China’s green building materials sector enables real-time access to high-grade polymers, flame retardants, and foaming agents. This minimizes geopolitical price spikes and ensures chemical composition stability.
Equipped with specialized testing laboratories and 8 senior R&D engineers, we customize formulations for extreme temperature environments, from cryogenic piping (-196°C) to high-temperature solar lines (+105°C).
Established by the Jinwei Group, which possesses more than 40 years of industry experience since its founding in 1979, Kingflex has led the development of thermal insulation manufacturing. We were the first thermal insulation manufacturer established north of the Yangtze River.
Today, we operate as an energy-saving, environmentally friendly enterprise. We integrate engineering, manufacturing, global sales, and post-sale technical support, supplying thermal insulation products to over 66 countries worldwide.
| Milestone / Stat | Details |
|---|---|
| Year of Group Establishment | 1979 (Over 4 decades of domain authority) |
| R&D Personnel | 8 Professional Engineers, 230 Production Specialists |
| Key Certifications | BS 476, CE, REACH, RoHS, UL94, ASTM |
Our standards comply with international requirements. Below are the key structural specifications for NBR/PVC sheets and tubes.
Designed to insulate wide-radius ductwork and mechanical surfaces. These rolls exhibit uniform density and a high closed-cell structure to resist thermal transmission.
| Property | Standard Rating / Range |
|---|---|
| Material Composition | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Available Thickness | 6mm to 50mm |
| Density Range | 40 to 55 kg/m³ |
| Service Temperatures | -40℃ to 105℃ (Extended Cryogenic Series down to -196℃) |
| Vapor Barrier Factor (μ) | ≥ 10,000 (Built-in continuous barrier) |
| Flame Propagation | Class 0 / Class 1 (BS 476 Part 6 & 7), Class V-0 (UL94) |
Engineered specifically for copper, steel, and PVC piping systems, our pipe insulation prevents condensation and reduces pipe freezing risks.
| Property | Standard Rating / Range |
|---|---|
| Inner Diameter (ID) | 6mm to 114mm |
| Available Thickness | 9mm to 40mm |
| Flexibility Rating | Compression resilience > 80% |
| Thermal Conductivity | ≤ 0.034 W/m·K at 0°C |
| Ozone/UV Resistance | Good (Outdoor installations require cladding or paint protective layers) |
Key factors driving project costs and material selection for HVAC installations.
Aircon insulation pricing depends on wall thickness, inner diameter, and special laminations (such as aluminum foil or self-adhesive backings). Specifying customized dimensions during raw material stages minimizes material waste during installation.
Global standards demand strict adherence to fire safety. Selecting materials certified under BS 476 (Class 0 and Class 1) ensures project approval in regions with strict regulatory frameworks, such as the UK, Middle East, and Southeast Asia.
Modern commercial developments prioritize HVAC insulation with zero ODP (Ozone Depletion Potential) and low GWP (Global Warming Potential). Closed-cell elastomeric foams support LEED, BREEAM, and Estidama certifications.
Our labs run continuous thermal conductivity, flame resistance, and density distribution audits.
We prioritize transparency at every step. From initial sample approval to automated production tracking, our export team keeps customers updated throughout the delivery process.
Our materials are packed, tracked, and shipped globally to maintain the performance ratings specified during ordering. This approach ensures product traceability, verified by our ISO quality audits.
Our products are engineered for clean integration, simple cutting, and secure adhesion in commercial mechanical installations.
Key Applications:
Key Applications:
A view of our raw materials, finished stock inventory, and distribution logistics.
Our specialized materials are designed for commercial applications, including mechanical, acoustical, and high-temperature systems.
Offers low thermal conductivity and reliable moisture barrier performance. Designed for HVAC duct lines and liquid refrigeration lines.
Engineered to protect metal lines against Corrosion Under Insulation (CUI) in chemical plants and harsh environments.
Flexible pipe design for quick installation on plumbing lines, reducing labor costs and installation time.
A classic solution for commercial air conditioner split copper pipes, providing condensation prevention and thermal efficiency.
Maintains consistent wall thickness to ensure thermal protection throughout long pipe runs.
Specially developed to resist condensation, ozone, and weathering in external roof HVAC installations.
A comprehensive system designed for plumbing, chilled lines, and complex industrial process piping.
Engineered for low-temperature applications, including LNG systems and industrial liquid gas lines.
Maintains structural flexibility at extremely low temperatures to prevent stress cracking in thermal systems.
Features multi-layered chemical structures to minimize heat gain on cryogenic pipelines and valves.
Provides structural fire resistance and acoustic absorption for high-temperature building facades and furnaces.
A highly flexible mineral wool solution designed for high-temperature industrial ducting and boilers.
Answers to common technical queries about elastomeric closed-cell rubber foam and project delivery.
Select the appropriate model for your application. Our sales team provides quotes based on thickness, dimensions, and order volume.
Contact our engineering desk for pricing, thermal thickness calculations, and fire classification certificates.
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Kingflex
