Examine our advanced NBR/PVC elastomeric rubber foam sheets, rolls, and pre-formed tubes engineered for optimal industrial efficiency.
In modern engineering, the management of thermal loss, condensation control, and structural longevity has transformed thermal insulation from a minor specification into a core engineering requirement. 30mm pipe lagging occupies a critical niche across commercial and industrial infrastructure, serving as the standard thickness required to isolate piping operating under extreme conditions.
Globally, structural criteria such as ASHRAE 90.1, the European Energy Performance of Buildings Directive (EPBD), and national codes call for higher thermal resistance (R-values). For HVAC chilled water lines, cryogenic processing networks, and industrial steam infrastructure, standard 9mm or 13mm insulation is often insufficient. A 30mm wall thickness provides the necessary thermal barrier to prevent the surrounding ambient air from reaching its dew point on cold pipe surfaces, thereby mitigating the risk of corrosion under insulation (CUI) and building degradation.
Reduces heat gain on chilled lines and heat loss on thermal pipelines, yielding measurable energy savings and lowering operational overhead globally.
Maintains pipe exterior temperatures above the dew point of the surrounding environment, stopping water vapor transmission and subsequent dripping.
The mass and structure of 30mm thick NBR/PVC matrix elastomer dampens mechanical and fluid vibration, lowering ambient noise levels.
Established under the legacy of the Jinwei Group, which boasts a history spanning more than 40 years since its founding in 1979, Kingflex has built a reputation as the first thermal insulation manufacturer north of the Yangtze River. Situated in Dacheng, China—a region known as the capital of green building materials—Kingflex functions as an energy-saving, environmentally conscious manufacturer that integrates advanced R&D, production, and sales.
At Kingflex, energy conservation and resource optimization serve as our guiding principles. We support infrastructure developers, engineers, and distributors worldwide by providing comprehensive insulation packages—offering technical design, production, custom fabrication, installation support, and after-sales service to advance the building materials sector.
To maintain consistently high specifications across large-scale production runs, Kingflex employs five high-speed automated extrusion and foaming lines. This level of automation is critical to maintaining chemical consistency and uniform cell structures across our product range, particularly for the 30mm thick NBR/PVC elastomeric formulations.
Our manufacturing site in Dacheng is recognized as a designated production provider by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry of China. This classification reflects our capability to fulfill large-scale utility and national infrastructure projects, ensuring reliable delivery, batch-to-batch traceability, and compliance with high-performance criteria.
Rooted in Jinwei Group's foundational engineering expertise since 1979, establishing standard manufacturing practices within the region.
Our staff features 8 professional R&D engineers, 6 international sales consultants, and 230 technicians managing production logistics.
Integrated testing protocols verify cellular structural integrity, vapor resistance indexes, and flame-retardant performance.
The mechanical efficiency of NBR/PVC elastomeric insulation depends directly on its physical properties. Below is the specification breakdown for our elastomeric line, illustrating why our materials are chosen by engineering firms globally.
| Material Core Property | NBR/PVC Elastomeric Rubber Foam Standard | Testing Methods / Compliance |
|---|---|---|
| Insulation Thickness Range | Pre-formed tubes: 9mm to 40mm | Sheets/Rolls: 6mm to 50mm | ASTM C534 / EN 13467 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0 °C | ≤ 0.036 W/(m·K) at 20 °C | ASTM C518 / ISO 8301 |
| Water Vapor Permeability (μ) | ≥ 10,000 (Fully closed-cell structure over 98% rating) | EN 12086 / ASTM E96 |
| Service Temperature Threshold | -40 °C to +105 °C (-40 °F to +221 °F) | EN 14706 / ASTM C411 |
| Density Range | 40 - 55 kg/m³ | ASTM D1622 / ISO 845 |
| Fire Classification | Class 0 & Class 1 compliant, self-extinguishing, low smoke index | BS 476 Parts 6 & 7, UL94 V-0, ASTM E84 |
| Mechanical Recovery (Resilience) | Compression recovery ≥ 80% | ASTM D1667 |
A major advantage of 30mm thick NBR/PVC elastomeric insulation is its adaptability across diverse thermal and environmental contexts. Below are the primary application areas where this specification is most commonly implemented:
Used on major refrigeration loops in commercial offices, hospitals, and transit hubs. The 30mm thickness helps prevent condensation when pipes transport chilled liquids at 4°C through humid environments.
Protects chemical distribution lines and industrial processing infrastructure from thermal fluctuation, maintaining fluid viscosity and process efficiency.
Applied to low-temperature transport networks and industrial cryogenic systems down to -40°C, minimizing heat absorption and reducing compressor load.
Installed in mechanical rooms, duct lines, and high-pressure steam distribution systems to reduce structural air vibration and operational noise.
The following images document various project phases, demonstrating the visual characteristics and consistent cell structures achieved in industrial applications:








To verify compliance for international construction and engineering projects, Kingflex products undergo testing and certification by external laboratories. Our certifications verify that our materials meet global fire safety, chemical restriction, and environmental performance requirements.
BS 476 Fire Standards
ISO 9001 Quality Assurance
CE Marking Standard
RoHS & REACH Compliance
Kingflex maintains an active production system designed to process orders reliably for clients in Asia, Europe, the Americas, and the Middle East. Below is a visual overview of our industrial infrastructure, demonstrating the automated production lines and logistics facilities we utilize to fulfill large-scale orders.
Kingflex works directly with building contractors, procurement agencies, and mechanical engineers worldwide. Below are documented verification materials showcasing real-time inquiries, product acceptance, and communication records from our international partners:
Review detailed technical explanations compiled by our R&D department regarding materials, installation procedures, and industry standards:
Select from our specialized elastomeric tubes, acoustic panels, and high-temperature formulations to fit your project requirements.