Engineered to mitigate thermal loss and corrosion under insulation (CUI) in industrial applications.
Kingflex Insulation Co., Ltd. stands as a premier manufacturing and trading configuration dedicated to high-grade thermal insulation products. Our core research, development, and state-of-the-art manufacturing infrastructure are localized in Dacheng, China—historically and globally recognized as the capital of green-building materials.
Established under the parent umbrella of the Jinwei Group, which boasts a rich heritage dating back to 1979 (over 40 years of pioneering manufacturing leadership), Kingflex represents the first commercial manufacturer of thermal insulation materials north of the Yangtze River. We focus on energy conservation, emission reduction, and reliable thermal barrier technologies.
We provide full-spectrum thermal insulation solutions. From initial technical consultation and customized R&D to factory-direct production, structural design layout, installation guidance, and global post-sale service tracking, Kingflex leads the transition toward structural efficiency.
Addressing the complex thermodynamic challenges across midstream transit, cryogenic LNG systems, and refining operations.
The global oil and gas sector demands insulation materials capable of performing under extreme thermal fluctuations, mechanical stress, and aggressive environmental exposure. In petrochemical refining plants and offshore drilling platforms, insulation systems serve two critical functions: energy retention (heat insulation) and vapor barrier maintenance (cold insulation).
Crucial Challenge: Corrosion Under Insulation (CUI)
CUI represents one of the most severe threats to pipeline integrity. In open-cell or fibrous systems (such as mineral wool or fiberglass), moisture infiltrates the barrier, holding corrosive agents against the carbon steel line. Kingflex's closed-cell elastomeric NBR/PVC matrix blocks moisture infiltration, achieving an absolute water barrier that eliminates the primary catalyst for CUI.
Our standard rubber foam insulation sheet roll and piping systems are manufactured utilizing a synthetic Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) blend. Through vulcanization and specialized foaming processes, we achieve an even, micro-cellular structure where over 98% of the cells remain fully closed.
This micro-cellular geometry locks in inert gas pockets, providing a remarkably low thermal conductivity (λ ≤ 0.035 W/(m·K) at 0°C). Furthermore, NBR/PVC exhibits excellent compression resilience (over 80% recovery), allowing the material to absorb vibration and structural movement along long-distance pipeline runs without cracking or losing thermal efficiency.
For liquefied natural gas (LNG) transport pipelines and storage systems operating down to -200°C, standard elastomers undergo a glass transition phase, rendering them brittle. Kingflex has developed specialized Elastomeric Cryogenic Tube and Sheet Rolls. These systems maintain high flexibility even at ultra-low temperatures, preventing contraction cracking and ensuring consistent thermal insulation barrier integrity across critical LNG operations.
| Performance Metric | Kingflex Elastomeric NBR/PVC | Elastomeric Cryogenic System | Industrial Rock Wool Board |
|---|---|---|---|
| Service Temp. Range | -40°C to +105°C | -200°C to +125°C | Up to +650°C |
| Thermal Conductivity | ≤ 0.034 W/m·k (at 0°C) | ≤ 0.032 W/m·k (at -110°C) | ≤ 0.044 W/m·k (at 70°C) |
| Closed-Cell Rate | ≥ 98% | ≥ 99% | N/A (Fibrous/Open) |
| Water Vapor Resistance | μ ≥ 10,000 | μ ≥ 20,000 | Hydrophilic (Needs Barrier) |
| Fire Standard Rating | BS 476 Class 0, UL94 V-0 | ASTM E84 Class A, BS 476 | Non-combustible Class A1 |
How Kingflex insulation systems perform in harsh real-world industrial landscapes.
Offshore Floating Production Storage and Offloading (FPSO) units are subjected to continuous saltwater spray, high mechanical vibrations, and wide temperature differentials. Kingflex closed-cell rubber sheet rolls with aluminum foil cladding protect piping from corrosive salt air while maintaining acoustic damping to reduce mechanical noise.
At LNG re-gasification and liquefaction hubs, cold conservation is critical. The use of Kingflex Elastomeric Cryogenic tubes prevents energy leaks in liquid methane pipelines, ensuring no condensation occurs. This minimizes frost build-up, which can lead to weight-load failure on support pipe hangers.
Refineries feature dense, interwoven networks of steam and process piping. Kingflex NBR/PVC thermal pipes prevent heat loss on hot water and low-pressure steam pipelines, while our rock wool thermal insulation blankets provide fire barriers and heat containment up to 650°C on high-temperature catalytic reforming units.
In municipal and industrial utility setups, maintaining liquid flow during winter is essential to prevent pipe freezing and cracking. Kingflex insulation tubes wrap seamlessly around bends, valves, and tees, reducing heat loss in distribution networks.
Purchasing directly from a verified Chinese manufacturer provides significant capital advantages. Kingflex operates 5 large-scale automated assembly lines, giving us an annual production throughput capacity exceeding 600,000 cubic meters. This scale allows us to buffer raw material swings, securing cost savings that we pass to our clients.
As a designated supplier to the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China, we are integrated with domestic raw polymer suppliers. This integration ensures stable supply lines, preventing the delivery bottlenecks often experienced with regional distributors.
Our workforce is structured to maintain output quality: 230 skilled production workers and 8 professional R&D engineers continuously refine polymer chemistry and structural configurations, supported by 6 dedicated international sales managers who manage global B2B procurement logistics.
Industrial thermal barriers are transitioning toward stricter safety profiles. Kingflex is leading this effort with development focus in three areas:
Rigorous verification paths ensure entry and reliability in global industrial sectors.
Kingflex insulation products are certified to international quality and safety regimes. Our materials pass testing protocols to ensure stable thermal insulation properties and flame-retardant performance under harsh operating conditions.
Expert answers to common engineering questions regarding the application, durability, and specifications of Kingflex insulation systems.
Specialized solutions for extreme low-temperature and high-density industrial systems.
Providing direct mechanical design parameters for engineering procurement.
Material Structure: High-density Nitrile Rubber (NBR) and PVC blend.
Standard Thickness Range: 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, 50mm.
Apparent Density: 40 – 55 kg/m³.
Operational Service Temperature: -40°C to +105°C.
Product Application Scope: High-volume central AC systems (ductwork wrapping), building envelopes (walls, basements, and roof decks), soundproofing panels, and vibration absorption in industrial machinery rooms.
Material Structure: Closed-cell extruded NBR/PVC matrix.
Standard Wall Thickness: 9mm, 13mm, 19mm, 25mm, 32mm, 40mm.
Inner Diameter Range: 6mm to 114mm (compatible with standard copper and steel pipes).
Thermal Conductivity: ≤ 0.035 W/(m·K) at 0°C.
Product Application Scope: HVAC chilled and hot water loops, industrial process plumbing, cold-room refrigeration, and steam condensate systems.
We supply a range of products to meet complex project specifications:
Kingflex
