Explore our premium grade elastomeric foam, cryogenic rolls, and engineered structural barrier products optimized for global installations.
In modern industrial applications, thermal control and energy efficiency are no longer optional compliance parameters; they are fundamental drivers of operational sustainability and bottom-line stability. Selecting the precise thickness and configuration of insulation material dictates the structural integrity, condensation control, and thermal efficiency of large-scale mechanical operations. A comprehensive Insulation Size Chart functions as the engineering blueprint that bridges raw material potential with high-performance real-world output.
Standardizing size metrics ensures that mechanical, design, and pipeline engineers can establish predictable calculations across international systems. Whether managing chilled water loops in commercial HVAC configurations or containment modules in ultra-low-temperature cryogenic processing, deviations in sizing of even a few millimeters can induce catastrophic thermal bridging, moisture infiltration, or runaway pipeline corrosion under insulation (CUI). High-density elastomeric closed-cell materials, manufactured under standardized global specifications, provide a resilient barrier that shields complex thermodynamic systems from continuous thermal exchange.
A primary challenge for mechanical procurement directors is translating dimensional charts across diverse markets. In the United States and regions utilizing British Imperial systems, nominal pipe sizes (NPS) are widely referenced alongside thickness measurements represented in inches. Conversely, Europe, Asia, and standard international operations align with Metric standards, leveraging Nominal Diameter (DN) specifications and millimeter dimensions. Our comprehensive sizing methodologies unify these standardizations to prevent layout misalignments on-site.
Engineering compliance requires exact raw data. Here are the core specifications, dimensions, and limits for our main elastomeric rubber foam sheets and pipelines.
Designed for flat plates, air ducts, storage tanks, and irregular large-diameter industrial equipment pipelines.
| Parameters | Standard Values |
|---|---|
| Material Composition | Premium NBR/PVC elastomer mix |
| Thickness Range | 6mm to 50mm |
| Density Range | 40 to 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Closed Cell Structure | Over 98% uniform density micro-voids |
| Flame Retardancy | Class 0 / Class 1 / Self-extinguishing |
Engineered for snug-fit placement over pipeline loops to optimize thermal stability and prevent condensation.
| Parameters | Standard Values |
|---|---|
| Material Composition | Premium NBR/PVC elastomer mix |
| Wall Thickness Options | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm |
| Internal Diameter (ID) | 6mm to 114mm (Nominal Fit) |
| Density Range | 40 to 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Water Vapor Permeability | High resistance factor (μ ≥ 10,000) |
How the evolution of advanced material science is shaping global insulation design, digital planning tools, and eco-friendly standards.
By integrating cross-linked synthetic rubber with advanced PVC matrices, modern foam structures achieve exceptionally low thermal conductivity (λ ≤ 0.034 W/m·K at 0°C) with superior physical density balance.
Transitioning from halogenated compounds to nitrogen-based expanding technologies allows zero ODP (Ozone Depletion Potential) and extremely low GWP (Global Warming Potential) compliance.
Digitalization of size charts directly into Building Information Modeling (BIM) programs enables automated engineering checks, minimizing manual sizing errors on site drawings.
Kingflex Insulation Co., Ltd. is a highly professional manufacturing and trading combo specializing in premium-grade thermal insulation products. Our cutting-edge research, development, and high-capacity manufacturing centers are situated in Dacheng, China—globally recognized as the capital of green-building materials.
As a leading energy-saving, environmentally conscious enterprise, Kingflex prioritizes structural consumption reduction. We deliver unified, high-integrity thermal insulation, cold insulation, and acoustic reduction solutions. Our operations range from early consultation and customizable sizing charts to rigorous manufacturing, installation assistance, and long-term after-sales support.
| Group Heritage | Founded by Jinwei Group (Established 1979) |
| Assembly Lines | 5 Large Automatic Lines |
| Special Status | Designated Supplier for Ministries of Energy, Electric Power, and Chemical Industry |
Kingflex is established by the Jinwei Group, which boasts more than 40 years of pioneering history in the green insulation sector. Formed originally in 1979, the group was the very first thermal insulation material manufacturer located north of the Yangtze River. Decades of research, process optimization, and industrial adaptation have cemented our status as a trusted global authority on closed-cell rubber elastomers.
A global supply chain relies on the expertise of the people driving it. The Kingflex workforce is a tightly knit, highly skilled organization aligned toward client satisfaction. Our structure includes 8 specialized thermodynamic research engineers in the R&D Department, 6 certified international sales representatives, and a workforce of 230 technicians and manufacturing experts across our assembly units.
Our commitment to reliable performance requires rigorous testing. Our physical testing and chemical optimization facilities ensure compliance with international safety protocols.
Guarded hot plate apparatus tests the lambda values of our elastomer structures under varying temperatures.
Proprietary blending processes regulate the uniformity of polymer links, enhancing aging resistance.
Ensuring our BS 476 and UL94 ratings comply with modern commercial structure standards.
Tested and approved by international third-party institutions. Our products meet global quality and environmental standards.
Our solutions are deployed across large-scale commercial facilities, industrial zones, transport systems, and cryogenic processing plants.








Our collaborative production teams, R&D personnel, and international logistics experts work together to ensure seamless global supply chains.
Explore our specialized industrial solutions, designed for cryogenic, acoustic, and high-vibration engineering systems.
High elasticity, closed-cell NBR structure for HVAC loops.
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Formulated to block moisture ingress and protect steel pipelines.
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Snug-fit flexibility allows fast application around corners.
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Optimized density profile to manage condensation control.
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Ultra-low temperature design protects critical process lines.
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Exceptional flexible capabilities for extreme cryogenic setups.
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Multi-layer system integration protects against thermal stress.
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Engineered thermal barrier for low-temperature processing.
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Exceptional heat performance for high-temperature ducts.
View DetailsContinuous output and large inventories ensure prompt delivery for international projects.

















Reliable supply is built on transparent communication. Here are actual client discussions regarding orders, custom sizes, and technical specifications.





Industrial thermal configurations vary greatly by region and environment. For example, high-humidity tropical zones face significant risk of condensation and mold on chilled water lines. In these environments, applying closed-cell NBR/PVC foam with a high water vapor diffusion resistance factor (μ ≥ 10,000) prevents air moisture from reaching the pipe surface. In dry, high-altitude locations, insulation helps maintain fluid flow rates by reducing heat loss in hot water pipes.
Get technical answers about sizing, specifications, fire safety ratings, and custom industrial manufacturing configurations.
Review our specialized high-performance product listings and request an direct factory quote for your project.