Kingflex
A comprehensive analysis of thermal resistance (R-Values), compliance standards, and supply chain optimized engineering for the UK commercial construction and HVAC sectors.
Within the United Kingdom, thermal insulation specifications are strictly regulated under Part L of the Building Regulations (Conservation of Fuel and Power). Design engineers and mechanical consultants are increasingly required to translate standard manufacturing metrics into verified localized values. With standard metric R-values representing thermal resistance measured in square-meter Kelvins per Watt (m²·K/W), calculating the exact performance profile of imported closed-cell materials is paramount.
Kingflex Insulation Co., Ltd. serves as a leading design and manufacturing cluster combo. Headquartered in Dacheng, China—historically regarded as the national capital for green building materials development—Kingflex bridges the gap between high-volume, cost-efficient manufacturing and stringent European performance metrics. By detailing verified Insulation R-Value Charts mapped directly to UK standards, we enable procurement managers to bypass middlemen, directly validating calculations against BS 476 and BS EN 12667 test reports.
Thermal performance must always be validated at specific mean operating temperatures. The chart below correlates our elastomeric closed-cell rubber foam sheet thickness against thermal conductivity (λ) and the resultant thermal resistance (R-Value) utilized by UK structural engineers.
| Material Type | Nominal Thickness (mm) | Thermal Conductivity λ at 0°C (W/m·K) | Resultant R-Value (m²·K/W) | UK Building Code Reference Application |
|---|---|---|---|---|
| NBR/PVC Elastomeric Foam | 6.0 mm | ≤ 0.033 | 0.18 | HVAC Control Lines & Vapor Seal |
| NBR/PVC Elastomeric Foam | 9.0 mm | ≤ 0.033 | 0.27 | Domestic Hot/Cold Water Pipe Wrap |
| NBR/PVC Elastomeric Foam | 13.0 mm | ≤ 0.034 | 0.38 | Commercial Chilled Water Runs |
| NBR/PVC Elastomeric Foam | 19.0 mm | ≤ 0.034 | 0.56 | Industrial Plant Chilled Water Plant |
| NBR/PVC Elastomeric Foam | 25.0 mm | ≤ 0.035 | 0.71 | Commercial Air Handling Ducts |
| NBR/PVC Elastomeric Foam | 32.0 mm | ≤ 0.035 | 0.91 | Outdoor High-Risk Condensation Pipelines |
| NBR/PVC Elastomeric Foam | 50.0 mm | ≤ 0.036 | 1.39 | Heavy Industrial Process Pipelines & Tanks |
Note: The R-Value is calculated mathematically as: $R = \text{Thickness (m)} / \lambda$. Our laboratory tests utilize ISO 8301 / ASTM C518 standard heat flow meter methods to verify these readings consistently.
Kingflex Insulation Co., Ltd. operates as a highly integrated professional manufacturing and trading combination for state-of-the-art thermal insulation systems. As a strategic energy-saving enterprise, our focus rests on three key axes: research and development, smart manufacturing, and dynamic global sales networks.
Established in 1979 by the Jinwei Group (previously Kingway Group), our manufacturing lineage spans more than 40 years of continuous history. As the pioneer manufacturer of high-grade thermal insulation materials north of the Yangtze River, we have built a manufacturing apparatus that balances massive capacity with meticulous chemical engineering.
A reliable manufacturing process is only as strong as its technical core. Our team represents a tight-knit, highly qualified group driven by a shared vision of providing first-class engineering services to our global clients. Kingflex houses:
Five fully automated high-speed production lines yielding 600,000+ cubic meters annually to service global infrastructure projects.
At present, Kingflex operates 5 large automatic continuous foaming lines. We are designated as an official supplier of thermal insulation solutions by major energy, power, and chemical planning ministries. Our strict testing protocol verifies that every batch of NBR/PVC elastomeric rubber maintains a closed-cell configuration exceeding 98%. This prevents moisture ingress, which is the primary driver of thermal degradation over time.
For UK projects, safety is non-negotiable. Our NBR/PVC systems have undergone fire testing to meet BS 476 standards.




Every product rolling out of the Kingflex manufacturing floor carries a specific batch number tracked through our custom ERP system. This guarantees traceability from the source compound input to final shipment. We work directly with certified global inspection services like SGS or TÜV to verify technical performance properties before dispatch, preventing site non-conformances in the UK.
Our logistics support handles custom packaging, palletizing, and shipping directly to UK ports including London Gateway, Felixstowe, and Liverpool, coordinating closely with local import brokers.
Real-time technical consultations and quality feedback loops with our international client base.




Standard engineering profiles for NBR/PVC elastomeric rubber foam sheets and specialized pipe insulations.
Engineered for broad-surface thermal shields, duct lagging, and larger vessels.
| Material Base | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) blend |
| Thickness Range | 6mm to 50mm |
| Density Profile | 40 - 55 kg/m³ |
| Service Temperature Range | -40℃ to 105℃ |




Specifically shaped for rapid installation over pipelines, reducing condensation risk on chilled lines and heat loss on heating networks.
| Material Base | Premium NBR/PVC blend with built-in vapor barrier |
| Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) Range | 6mm to 114mm (Compatible with standard UK copper/steel piping) |
| Service Temperature Range | -40℃ to 105℃ |




How Kingflex products meet the demands of commercial construction, heavy industrial process networks, and cryogenic logistics.
Used extensively to wrap supply and return air ducts, fan coil units, and chilled water pipes. Our BS 476 Class 0 certification satisfies local council fire regulations for high-occupancy structures including hotels, regional malls, and modern medical centers.
Our specialized elastomeric cryogenic foam insulation handles temperatures down to -196°C. Excellent for LNG pipelines, storage tanks, and chemical process infrastructure, it prevents boiling off and system failures.
Our dual-action nitrile insulation features sound absorption properties, dampening structural vibration in rail transit carriages, plant machinery rooms, and high-velocity airflow ducts.




Sourcing directly from our Dacheng manufacturing complex cuts out distribution layers, lowering material costs for contractors by up to 25-40% compared to local UK distributors.
We supply standard FOB (Tianjin/Qingdao) or CIF/DDP (UK major ports) quotes based on order volume. Standard container shipping details include:




How Kingflex is modernizing insulation materials to meet upcoming net-zero carbon rules and volatile organic compound limits.
As the UK targets net-zero carbon by 2050, the embodied carbon index of building materials is closely scrutinized. Kingflex is leading development in three main areas:


Technical details, compliance answers, and logistics information regarding our elastomeric rubber foam insulation products.
High flexibility vapor-barrier protection tube for small copper runs.
Formulated to resist acid rain, salt air, and chemical line splash.
Maximum stretch factor for retrofitting over complex pipe layouts.
Standard closed cell formulation, available in standard UK pipe sizes.
Lightweight thermal lagging for residential domestic water setups.
Designed for high-performance cooling runs, preventing external sweating.
Integrated system with vapor barriers for complex commercial spaces.
Handles high thermal shock and vibration at low temperatures.
Specifically developed for heavy industrial petrochemical processes.
Advanced insulation wrap designed for LNG tankers and port supply terminals.
High-temperature mineral fiber board for structural fireproofing.
Flexible wire-meshed backing blanket for high-temperature ducts.
Traceable batch logs representing the production run parameters across our continuous vulcanization ovens.
















