Kingflex
Explore our top-tier elastomer profiles, acoustic barriers, and cryogenic insulation systems designed for maximum energy conservation.
How elastomeric insulation prevents structural failures, moisture ingress, and thermal degradation in HVAC/R circuits.
Refrigerant lines operate at temperatures significantly below the ambient dew point. This temperature differential creates a relentless thermodynamic force known as vapor pressure drive. Water vapor from the warm surrounding air constantly attempts to migrate toward the cold surface of the pipework. Without a highly resistant barrier, moisture infiltrates the system, causing dramatic increases in thermal conductivity and accelerating corrosion under insulation (CUI).
Traditional open-cell materials like fiberglass or rock wool rely on separate vapor retarders that are highly susceptible to punctures. Kingflex closed-cell NBR/PVC elastomeric rubber foam incorporates millions of micro-cells, each acting as an individual, built-in vapor barrier. Boasting a water vapor resistance index (μ-factor) of ≥ 10,000, our material ensures long-term insulating integrity and stops condensation from forming, protecting building materials and pipework systems for decades.
Adapting to natural refrigerants, strict emission protocols, and net-zero construction requirements.
Global protocols like the Kigali Amendment are accelerating the transition to HFOs and natural refrigerants like Ammonia (R717) and CO₂ (R744). These refrigerants exhibit unique operating temperatures and pressures, requiring specialized elastomeric configurations to prevent thermal fluctuations and maintain stable system performance.
Modern building codes dictate strict limits on thermal loss in mechanical systems. Efficient refrigerant pipework insulation dramatically reduces heat gains in HVAC cooling loops, lowering operational energy demands and enabling compliance with LEED, BREEAM, and international green building benchmarks.
Fast-track construction demands modular solutions. Standardized, pre-insulated copper coils and mechanical pipework units cut on-site assembly schedules, limit manual errors, and provide seamless insulation layers across elbows, T-joints, and valves.
Decades of industrial leadership in high-capacity thermal and cold insulation systems.
Unpacking the production capacities, technological investments, and heritage that define Kingflex Insulation.
Established under the parent umbrella of the Jinwei Group, which boasts a historical foundation dating back to 1979, Kingflex has grown from the first manufacturer of thermal insulation materials north of the Yangtze River to a powerhouse of energy-saving technology. Located in Dacheng, China—the recognized capital of green-building materials—our factory operates as a modern research, development, and supply-chain hub.
Our infrastructure features 5 large automatic assembly lines, generating an annual volume in excess of 600,000 cubic meters. By integrating state-of-the-art continuous foaming and vulcanization systems, we ensure our NBR/PVC matrix achieves an even cellular distribution with a closed-cell structure exceeding 98%. This level of process control guarantees reliable, uniform thickness and a highly consistent density profile (40–55 kg/m³).
Our dedicated R&D division comprises 8 specialized materials engineers focused on optimizing flame retardancy and thermal efficiency, supported by a workforce of 230 technicians and 6 international account managers ensuring smooth project delivery worldwide.
Engineered to meet international standards for fire safety, low thermal conductivity, and structural resilience.
| Physical Parameter | Standard Value / Rating |
|---|---|
| Material Composition | NBR/PVC Elastomeric Foam |
| Thickness Range | 6 mm – 50 mm |
| Density Rating | 40 – 55 kg/m³ |
| Service Temp. Range | -40℃ to 105℃ |
| Closed-Cell Ratio | > 98% |
| Compression Resilience | ≥ 80% |
| Flame Retardancy | Self-Extinguishing (Class 0 / B1) |
| Physical Parameter | Standard Value / Rating |
|---|---|
| Material Composition | NBR/PVC Elastomeric Foam |
| Thickness Range | 9 mm – 40 mm |
| Inner Diameter (ID) | 6 mm – 114 mm |
| Density Rating | 40 – 55 kg/m³ |
| Service Temp. Range | -40℃ to 105℃ |
| Thermal Conductivity | Low (k-value ≤ 0.034 W/m·K at 0℃) |
| Moisture Resistance | High Resistance Factor (μ ≥ 10,000) |
Providing thermal management, acoustic isolation, and cold conservation across critical infrastructures.
Excellent condensation control for air conditioning chilled water pipes, hot water lines, and ventilation ducts in hospitals, hotels, airports, and commercial offices, reducing fan-coil energy usage.
High-density acoustic panels and sheets reduce noise in machinery rooms, theater walls, roofs, basements, and multi-tenant structures, dampening vibration and structurally-borne sounds.
Continuous insulation for cryogenic pipelines, walk-in freezers, refrigerated transport vehicles, and food processing facilities, maintaining tight temperature control with minimal thickness.
Thermal stability and corrosion protection for steam lines, process piping, large storage tanks, and gas recovery networks operating under harsh environmental conditions.
Lightweight thermal liners for train cabins, subways, and aircraft components where low weight, smoke control, and fire safety (UL94 V-0 class) are mandatory requirements.
Outstanding UV and weather-resistant elastomeric jackets for solar collectors and geothermal piping, preventing heat loss in extreme outdoor environments.
Tested by third parties to verify non-toxicity, flame resistance, and physical durability.
Our commitment to quality is backed by comprehensive certifications. Kingflex elastomeric materials undergo strict tests to ensure compliance with national and global safety regulations. We maintain trace-testing programs from raw materials to final packaging.
A look inside our development labs, production floors, and actual construction sites.
Get professional answers about specifications, installation, and application options for elastomeric rubber foam insulation.
High-density insulation, acoustic boards, and pipe profiles for heavy commercial cooling and industrial piping systems.
