Kingflex
Kingflex
Engineered to align with global refrigerant pipe insulation codes for energy retention and condensation control.
A comprehensive overview of mechanical insulation standards designed to eliminate thermal losses, prevent condensation, and ensure regulatory alignment.
Within modern mechanical engineering, building energy codes such as the ASHRAE Standard 90.1, the International Energy Conservation Code (IECC), and European Normative standards (such as EN 14304 and BS 5422) dictate clear mandates on refrigerant pipe insulation. These regulations are designed to minimize heat transfer, prevent moisture vapor transmission, and mitigate mold growth risk.
Proper compliance relies on selecting an insulation material with high resistance to water vapor transmission and low thermal conductivity. For systems working in sub-ambient or variable-temperature cycles (chilled water, VRF systems, and refrigeration lines), a fully closed-cell structure acts as a continuous vapor barrier. This eliminates the need for supplementary external vapor jackets on indoor lines.
Under China's domestic standard, GB 50189 (Design Standard for Energy Efficiency of Public Buildings) and GB/T 17794, flexible elastomeric cellular materials are classified and marked specifically based on their density, operating temperatures, and flammability parameters.
Evaluating Kingflex standard properties and material parameters against international compliance frameworks.
| Regulatory Standard | Material Class | Thermal Conductivity (λ) | Water Vapor Permeability (μ) | Fire Classification |
|---|---|---|---|---|
| ASTM C534 (Type I Grade 1) | Flexible Elastomeric Cellular | ≤ 0.034 W/(m·K) at 0°C | ≥ 1.0 x 104 | Flame Spread < 25, Smoke Developed < 50 (ASTM E84) |
| BS 476 Part 6 & 7 | NBR/PVC Elastomeric Foam | ≤ 0.033 W/(m·K) at -20°C | ≥ 1.0 x 104 | Class 0 / Class 1 compliance |
| EN 14304 (FEF) | Flexible Elastomeric Foam | ≤ 0.035 W/(m·K) at 10°C | ≥ 10,000 | Euroclass B-s3, d0 / C-s3, d0 |
| GB/T 17794 (Class 1) | Nitrile-Butadiene Rubber | ≤ 0.034 W/(m·K) at 0°C | ≥ 2.0 x 104 | Class B1 (Flame Retardant) |
Kingflex insulation boasts an even closed-cell rate exceeding 98%. This micro-cavity structure restricts gas convection and prevents moisture penetration, ensuring stable, long-term thermal conductivity.
Fully compliant with BS 476, UL94, and European fire resistance tests. Built-in flame retardants produce self-extinguishing properties, minimizing smoke density and heat release rate during fire incidents.
With compression resilience exceeding 80%, Kingflex elastomeric materials maintain structural thickness under external pressure, preventing local thermal bridges at pipe hangers and supports.
Protecting critical infrastructure and optimizing thermal efficiency in demanding operating environments worldwide.
Modern VRF systems route refrigerant throughout buildings at varying temperatures. The Kingflex insulation system prevents line condensates and controls radiant losses, complying with ASHRAE 90.1 thickness protocols.
For applications down to -200°C, ordinary insulation suffers cell collapse due to rapid thermal contraction. Kingflex cryogenic systems use multi-layered elastomeric membranes to protect piping in LPG/LNG transit lines and biochemical cooling zones.
In chemical complexes, refinery networks, and steam applications, the environmental resilience of the nitrile-butadiene rubber (NBR) base protects lines against acid corrosion, salt exposure, and atmospheric moisture ingress.
A trusted manufacturer with over 40 years of industry experience, delivering high-performance insulation solutions worldwide.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and manufacturing facility is located in Dacheng, China—a well-known capital of green building materials.
Founded by the Jinwei Group, which carries a rich manufacturing heritage dating back to 1979, Kingflex traces its lineage to the very first thermal insulation material manufacturer established north of the Yangtze River. Operating under the core philosophy of "energy saving and consumption reduction," we provide end-to-end consulting, R&D, manufacturing, and technical installation guidance for mechanical insulation systems.
Our dedicated team consists of 8 professional R&D engineers, 6 international sales specialists, and 230 production workers committed to quality assurance and reliable service.
Leveraging high production capacity and quality standards to meet mechanical insulation demands worldwide.
Kingflex operates 5 large automatic assembly lines, generating an annual output capacity exceeding 600,000 cubic meters. This production level makes us a trusted manufacturing supplier for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our raw materials are processed through computerized batch systems to ensure consistent polymer density and expansion ratios. We also provide direct material traceability across all production runs to verify code compliance for structural projects.
Over the past 16 years, our commercial and industrial insulation products have been exported to over 66 countries worldwide.
Testing and compliance documentation verified by third-party international testing authorities.
Our insulation materials are fully certified under BS 476, CE, REACH, RoHS, UL94, and ASTM standards. This compliance ensures that Kingflex insulation materials meet the safety and quality requirements of high-efficiency building and industrial projects worldwide.
The development roadmap of mechanical insulation, balancing performance requirements with environmental sustainability.
Moving away from HCFCs to zero-ODP and low-GWP blowing technologies, matching future environmental regulations on greenhouse gas emissions.
Integrating flexible aerogel composites into elastomeric foams to reduce thickness requirements on chilled lines in confined areas.
Developing pre-laminated aluminum foil coatings to protect against UV radiation, physical wear, and severe weather in outdoor installations.
Verified delivery records and technical consultations from our international service network.
Standard Dimensions: Material: NBR/PVC | Thickness: 6mm - 50mm | Density: 40 - 55kg/m³ | Temperature Range: -40℃ to 105℃.
Performance Advantages: High closed-cell rate (>98%) for consistent thermal resistance; low moisture absorption; compression resilience above 80%; self-extinguishing fire performance.
Key Applications: Wall, roof, and basement thermal insulation; central air conditioning ducts; soundproofing and noise reduction in mechanical rooms; vessel and equipment cladding.
Standard Dimensions: Material: NBR/PVC | Thickness: 9mm - 40mm | Inside Diameter (ID): 6mm - 114mm | Density: 40 - 55kg/m³ | Temperature Range: -40℃ to 105℃.
Performance Advantages: Uniform extrusion with smooth finishes; compression resilience above 80%; low thermal conductivity and high moisture resistance; reduces pipe freezing and cracking risks.
Key Applications: Chilled water, hot water, and condensate lines for HVAC systems; commercial water supply pipes; chemical process piping; solar and low-temperature cold chain pipelines.
A comprehensive range of thermal, acoustic, and cryogenic insulation materials designed for modern industrial applications.
High-flexibility closed-cell tube for HVACR pipe insulation.
Specialized outer barrier compound designed for corrosive operating environments.
High-density flexible formulation that simplifies installation over long pipe runs.
Standard black elastomeric thermal pipe insulation with uniform density.
Flexible design optimized for residential plumbing and secondary lines.
Optimized thickness options to prevent condensation on cold HVAC systems.
An integrated system featuring self-seal seams for fast installation.
Multi-layered composite systems for temperature control down to -200°C.
Performance engineered to handle cyclic temperature swings.
Flexible mineral wool wrap for chimneys and high-temp industrial pipes.
Find answers to common technical, design, and regulatory compliance questions regarding our products.
High-performance closed-cell insulation designed for demanding thermal applications and industrial process systems.
