Premium selection of industry-grade elastomeric foam sheets, rolls, and specialized cryogenic isolation systems.
Founded under the umbrella of the legendary Jinwei Group—established in 1979 as the pioneering thermal insulation materials manufacturer north of the Yangtze River—Kingflex Insulation Co., Ltd. has evolved into a premier global manufacturing and trading combination for thermal insulation products.
Headquartered in Dacheng, China, the designated capital of green building materials, Kingflex integrates state-of-the-art research and development with large-scale production. We operate under the core philosophy of energy saving and consumption reduction, delivering holistic consultancies, structural design guidance, and dedicated post-sale solutions.
Analyzing the evolution of low thermal conductivity materials from standard closed-cell foams to advanced hybrid formulations.
Based on high-density NBR/PVC polymer structures. Featuring a uniform micro-cellular structure, offering baseline values ($\lambda \leq 0.034 \text{ W/(m}\cdot\text{K)}$ at $0^\circ\text{C}$). Outstanding flexible handling, resistance to condensation, and standard fire-retardant parameters.
By infusing silica aerogels into closed-cell structures, Kingflex R&D is engineering thin-profile materials that reach ultra-low thermal conductivity values ($\lambda \approx 0.026 \text{ W/(m}\cdot\text{K)}$). This reduces overall space requirements in dense HVAC ductwork.
Focusing on bio-based polymer networks and eco-compatible foaming agents. Free of halogenated hydrocarbons (CFCs & HCFCs), aligning with zero ODP (Ozone Depletion Potential) targets and catering to international LEED v4.1 and BREEAM certifications.
How our low thermal conductivity solutions address site-specific variables and climate constraints across global markets.
High ambient temperatures combined with extreme relative humidity levels lead to chronic moisture condensation on HVAC steel pipes. If left untreated, this results in corrosion under insulation (CUI). Kingflex high-density NBR/PVC closed-cell rubber foam insulation, featuring a vapor permeability resistance factor ($\mu \geq 10,000$), acts as an integrated vapor barrier. It ensures that the core insulation retains its low thermal conductivity properties for decades, preventing structural damage and reducing operating costs.
Transporting Liquefied Natural Gas (LNG) at ultra-low temperature systems requires insulation materials that do not crack under thermal shock. Our specialized elastomeric cryogenic rubber insulation system remains flexible at temperatures down to $-40^\circ\text{C}$ (and specialized cryogenic variants to $-200^\circ\text{C}$). This prevents cracking and minimizes the thermal bridging that compromises conventional rigid insulation systems.
Operating out of Dacheng, Hebei Province, Kingflex harnesses a complete vertical supply chain. Raw polymer inputs, chemical foaming agents, and processing equipment are sourced within a 50-kilometer radius. This geographic advantage shields our operations from international raw material volatility.
With 5 large automatic assembly lines, we process raw materials continuously, reaching an annual capacity of 600,000 cubic meters. This scale enables us to fulfill high-volume international orders in fractions of the lead times required by regional competitors.
Direct highway access allows delivery to Tianjin seaport within 3 hours, facilitating rapid ocean freight operations.
Designated supply enterprise for the Ministry of Energy and the Ministry of Chemical Industry.
Compare standard dimensions, material thresholds, and localized properties of our core NBR/PVC sheets and pipes.
Kingflex Standard Dimensions:
Primary Applications: Air ducts, HVAC systems, basement thermal barrier plates, industrial water reservoirs, process line protection.
Kingflex Standard Dimensions:
Primary Applications: HVAC chilled/hot water lines, solar thermal water pipes, chemical processing channels, commercial refrigeration.
Specialized Design Attributes:
Primary Applications: Liquid Nitrogen/Oxygen pipelines, LNG re-gasification facilities, offshore marine fuel transfers, process lines.
Take an inside look at our advanced R&D facilities and automated production pipelines.
With a legacy tracing back over four decades, we continue to engineer reliable insulation systems.
Jinwei Group is established, creating the first manufacturing plant for thermal insulation materials north of the Yangtze River.
Kingflex pivots to the global export trade, serving projects in Southeast Asia, Europe, and Latin America.
With 5 automated assembly lines, Kingflex achieves an annual production capacity exceeding 600,000 cubic meters.
Our employees are the core of our business. The Kingflex team is a tight-knit, talented group with a shared vision of delivering reliable service to our international clients.
Explore our comprehensive catalog of closed-cell elastomeric tubes, sheets, and cryogenic accessories.
Under Google's E-E-A-T guidelines, transparency and verifiable customer feedback are crucial markers of trust. We maintain direct, open communication channels with engineering consultants and energy contractors worldwide. Our supply capabilities are supported by real-time quality control checks and order tracking.
These real transaction records demonstrate our capability to meet tight delivery windows, handle custom sizing requests, and maintain core thickness tolerances across large shipments.
Selected references of construction, cold storage, and energy projects utilizing Kingflex low thermal conductivity systems.
Explore our industrial range of cryogenic line wraps, colorful identification sheets, and self-adhesive options.
Comprehensive engineering details concerning elastomeric, cryogenic, and building insulation systems.
A1: It is primarily designed for commercial HVAC ductwork, hot and cold water system pipelines, industrial process equipment insulation, and sound attenuation barriers in noise-sensitive mechanical spaces.
A2: Yes, our elastomeric compounds incorporate advanced flame-retardant chemistry. Our products meet global fire safety standards, achieving BS 476 Part 7 Class 1 ratings and UL94 flammability requirements.
A3: Rubber foam features a flexible, closed-cell polymer structure that acts as its own vapor barrier, making it suitable for cold systems and HVAC applications to prevent condensation. Rock wool is an open-fiber mineral structure designed for high-temperature applications and passive structural fire protection.
A4: Yes, we provide full OEM and ODM services. We customize insulation sheets and pipes to specific wall thicknesses, interior diameters, density values, and outer coatings to meet project specifications.
A5: Our products are tested and certified under international standards, including BS 476 (Class 0 and Class 1), CE, REACH, RoHS, UL94, and ASTM, ensuring compliance for public and commercial developments.
A6: Yes, each production lot is marked with a tracking code. This allows us to track raw material batches, quality control records, and line variables for every shipment.
A7: We operate extrusion lines that produce continuous sheets in thicknesses ranging from 6mm up to 50mm, accommodating a wide range of thermal resistance requirements.
A8: When installed according to manufacturer guidelines, Kingflex systems maintain their structural integrity and design thermal conductivity for approximately 10 to 15 years, depending on environmental conditions.
A9: Our formulation features a closed-cell structure exceeding 98%. These microscopic, gas-filled cells prevent convective heat transfer, while the NBR/PVC polymer matrix minimizes conductive heat flow.
Kingflex
