Kingflex
Engineered rubber foam tubes targeting London's building services, commercial retrofits, and high-performance HVAC specifications.
Specifically developed with robust UV-stabilizers and anti-oxidation agents, providing excellent resistance against structural degradation in British environments.
View Details
Offers superior thermal performance, minimal heat conductivity, and exceptionally low moisture absorption, perfect for commercial projects in Greater London.
View Details
A highly flexible elastomeric thermal insulation engineered for rapid installation on intricate chilled water piping networks and heat distribution lines.
View Details
Heavy-duty elastomeric composition offering advanced resistance against moisture ingress, vapor transmission, and micro-organic development.
View DetailsLondon’s HVAC, district heating, and process cooling markets are experiencing rapid transitions governed by stringent environmental policies, including the UK Net Zero Carbon Buildings Standard and the amended Building Regulations (Part L: Conservation of Fuel and Power). To meet these high benchmarks, MEP engineers, acoustic consultants, and building specialists require materials that provide superior thermal insulation and resist condensation-related degradation.
Our premium NBR/PVC elastomeric rubber foam insulation tubes are engineered to prevent thermal bridging, limit energy dissipation, and suppress condensation, particularly on refrigerant pipelines and chilled water networks in municipal systems, commercial towers like Canary Wharf, and underground public transport lines.
Empowering global and domestic construction sectors via high-capacity production, cutting-edge R&D, and 40+ years of manufacturing expertise.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales. In operation, Kingflex takes energy saving and consumption reduction as its core concept.
We provide comprehensive solutions regarding insulation by means of consulting, research & development, production, installation guidance, and post-sale services, leading the development of the global building materials industry.
Kingflex was established by the Jinwei Group, which possesses more than 40 years of history. Established in 1979, the group was the very first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for contemporary elastomeric manufacturing technologies.




A comprehensive overview of product sizes, performance metrics, and estimated commercial wholesale prices for London import programs.
Estimating commercial budgets for London construction requires analyzing production raw material costs, freight charges to ports like Felixstowe or London Gateway, and regional processing margins. Below is our baseline pricing structure for NBR/PVC elastomeric foam tubes, offering factory-direct cost efficiency.
| Insulation Thickness (mm) | Pipe ID Range (mm) | Thermal Conductivity (W/m·K) | Fire Protection Class | Est. Wholesale Price Range (GBP/m) |
|---|---|---|---|---|
| 9 mm | 6 - 114 mm | ≤ 0.034 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £0.45 - £1.80 |
| 13 mm | 6 - 114 mm | ≤ 0.034 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £0.65 - £2.60 |
| 19 mm | 9 - 114 mm | ≤ 0.035 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £1.10 - £4.20 |
| 25 mm | 13 - 114 mm | ≤ 0.035 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £1.85 - £6.50 |
| 32 mm | 19 - 114 mm | ≤ 0.036 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £2.50 - £9.80 |
| 40 mm | 22 - 114 mm | ≤ 0.036 (at 0°C) | BS 476 Part 7 Class 1 / Class 0 | £3.80 - £14.50 |
Engineered technical values ensuring consistent energy conservation in industrial and commercial HVAC systems.
Ideal for central air conditioning duct systems, sound attenuation in building envelopes, roofs, subterranean structures, and heavy machinery insulation.
Engineered for central cooling pipelines, HVAC plumbing services, solar water heaters, process chemical piping, cryogenic plants, and transport services.
Our manufacturing lines operate under strict quality management systems, ensuring full compliance with European and British regulatory codes.
Compliance is paramount in high-stakes construction environments. Our elastomeric foam insulation materials undergo rigorous testing by third-party laboratories to meet requirements for international applications, including Europe and the United Kingdom.
Meets Part 6 & 7 fire spread requirements for building structures.
Complies with European fire safety and product quality regulations.
Free from heavy metals, halogenated fire retardants, and restricted chemical compounds.
Meets strict flame spread and smoke density requirements for transport and industrial projects.



Our products are used in high-profile construction projects across the UK, Europe, and the Middle East, delivering excellent performance under demanding conditions.
With an annual capacity of over 600,000 cubic meters, Kingflex regularly coordinates volume container shipments to ports in the UK. Whether you are a mechanical contractor in East London, a building services merchant in Croydon, or an MEP consultant in Canary Wharf, we handle the production logistics, packaging, and custom declarations to ensure hassle-free delivery.
Our dedicated sales managers and structural engineering division provide detailed product documentation, design support, and installation guidance tailored to local building regulations.
We work closely with procurement officers and engineers, providing transparent documentation and project support from order processing to site installation.







Common questions from design engineers, estimators, and project managers regarding rubber foam insulation systems.
Explore our selection of specialized closed-cell rubber foam tubes and sheets, complete with original manufacturer specifications.
Designed for optimal thermal efficiency, reducing energy loss on heated piping and commercial hot water loops.
Request Quote
Highly flexible elastomeric tube designed for quick installation on long copper piping runs.
Request Quote
Engineered for durability under demanding mechanical stress and varying temperature ranges.
Request Quote
Get factory-direct pricing on standard and custom sizing runs for large-scale construction schedules.
Request Quote
Features low thermal conductivity, helping control condensation and improve energy conservation.
Request Quote
A versatile selection of elastomeric sheets, rolls, and tubes for commercial construction applications.
Request Quote
Designed specifically for air conditioning refrigerant lines, preventing condensation and energy loss.
Request Quote
Flexible, closed-cell NBR/PVC pipes available at wholesale rates for major commercial projects.
Request QuoteExplore our high-performance solutions for low-temperature applications and industrial plant operations.
Access competitive wholesale pricing on bulk orders of high-grade elastomeric insulation materials.
View OptionsNBR-based raw materials provide superior mechanical resistance and longevity in building services applications.
View OptionsEngineered for extreme cryogenic lines, maintaining structural flexibility and thermal performance at sub-zero temperatures.
View OptionsPartner with Kingflex to secure factory-direct pricing on premium elastomeric rubber foam insulation. Contact our engineering and logistics team for technical data sheets, compliance verification, and direct price lists.