Kingflex
Premium NBR/PVC closed-cell elastomeric tubes, cryogenic sheets, and halogen-free thermal barriers for high-spec engineering requirements.
Thermal calculations indicate that for most commercial HVAC chilled water lines and medium-temperature industrial systems, a 25mm (1 inch) wall thickness provides the optimal thermal performance curves. Choosing 25mm insulation minimizes heat gain/loss while ensuring the surface temperature of the pipe remains above the ambient dew point, effectively preventing condensation and subsequent corrosion under insulation (CUI).
Kingflex 25mm rubber foam uses a sophisticated closed-cell structure. Boasting a closed-cell rate exceeding 98%, it presents a highly dense barrier against moisture vapor transmission. This performance is critical for sub-zero liquid and gas lines, cleanrooms, data centers, and heavy processing industrial facilities.
State-of-the-art automatic extrusion and curing line at Kingflex Dacheng facility.
A transparent guide to industrial-scale quotes. Base pricing is subject to bulk order quantities, raw materials indices (NBR/PVC), and fire rating specifications.
| Pipe Material Standard Size | Inner Diameter Range (mm) | Wall Thickness | FOB Tianjin Base Price Range (USD/Meter) | Recommended Industrial Applications |
|---|---|---|---|---|
| DN15 (1/2") | 22mm | 25mm | $1.10 - $1.85 | HVAC Chilled Water & Domestic Condensation Lines |
| DN20 (3/4") | 28mm | 25mm | $1.45 - $2.20 | Commercial Hydronic Heating & Process Piping |
| DN25 (1") | 35mm | 25mm | $1.80 - $2.75 | Data Center Process Water, Glycol Loop Systems |
| DN32 (1-1/4") | 42mm | 25mm | $2.25 - $3.40 | Refrigerant Lines & Institutional Mechanical Rooms |
| DN40 (1-1/2") | 48mm | 25mm | $2.70 - $4.10 | Industrial Chilled Glycol & Medium Hot Water Lines |
| DN50 (2") | 60mm | 25mm | $3.50 - $5.30 | Chilled Water Mains, Heavy Commercial HVAC |
| DN80 (3") | 89mm | 25mm | $4.80 - $7.20 | District Cooling Headers, Plant Utilities |
| DN100 (4") | 114mm | 25mm | $6.20 - $9.50 | High-Capacity Utility Mains, Petroleum Processing |
Elastomeric foam pricing is closely linked to international petrochemical and synthetic rubber raw indexes. Bulk purchasing allows us to lock in material pricing up to 6 months in advance for long-term project bids.
Standard Class 1 ratings offer an economical benchmark. Premium applications requiring Class 0 (BS 476 Part 6/7) or ASTM E84 (25/50 smoke/flame index) involve specialized fire-retardant compound additions, altering the base quotes.
For outdoor pipelines, integrating UV-resistant foil, embossed aluminum clad, or heavy-duty polymeric jacketing protects NBR foam from physical stress and UV degradation, extending service life by 10-15 years.
Supporting large-scale construction, chemical complexes, and utility developments with comprehensive logistics solutions.
Engineering, Procurement, and Construction (EPC) contractors require high dimensional consistency and fast delivery. Kingflex ensures exact tolerances in wall thickness (25mm +/- 1.5mm) and inner diameters to eliminate gaps during installation. Our modern facility houses 5 high-output automatic lines, generating over 600,000 m³ annually, maintaining rapid delivery for global infrastructure projects.
Every single batch of our 25mm elastomeric foam carries laser-engraved batch numbers for QA traceability. We follow international environmental and health standards, ensuring products are free of CFCs, HCFCs, and halogenated flame retardants where specified. Our range meets RoHS and REACH requirements for use in European and American municipal works.
Established in 1979, pioneering high-performance insulation in Northern China for more than 40 years.
Led by 8 professional R&D engineers, offering complete customized thermal calculations for project submittals.
Equipped with thermal conductivity and combustion tests for real-time QC testing of every production run.
How advanced polymer formulations are adapting to carbon-neutral initiatives and rigorous green building standards.
Kingflex is actively transitioning to zero-VOC, low-smoke halogen-free (HF) formulations. This prevents toxic gas emissions during fire events, meeting standard requirements for metro systems, public health centers, and cruise ships.
Expanding on standard -40°C NBR capabilities, our cryogenic R&D line offers flexible insulation rated down to -200°C (-328°F) for LNG storage facilities and petrochemical liquid transfer pipelines.
Utilizing automated thickness sensors and inline curing machinery, Kingflex maintains consistency across high-volume production, lowering waste and keeping competitive export quotes.
Tested and verified by international classification bodies and laboratories to ensure reliability under extreme thermal stress.
From deep cryogenic LNG systems to standard commercial buildings, our insulation materials are chosen for high-spec projects.
Density: 40-55 kg/m³
Compression Resilience: ≥ 80%
Structure: Full closed-cell structure for low moisture absorption, stabilizing long-term thermal conductivity.
Flame Retardancy: Built-in self-extinguishing compounds prevent rapid flame spread, reducing fire hazard levels.
Wall Thickness: 9mm to 40mm options (25mm standard specified)
Inner Diameter Availability: 6mm to 114mm (compatible with standard copper and steel pipes)
Features: High-precision manufacturing guarantees uniform coating and consistent density, avoiding weak spots along the pipe curve.
We provide real-time coordination, clear dispatch timelines, and comprehensive technical follow-ups for our international clients.
Continuous process lines and secure packaging configurations protect materials during international transit.
Deep technical answers on elastomeric rubber foam insulation properties, specifications, and project applications.
Explore our complete range of specialized low-temperature, ultra-low temperature, and high-density elastomeric insulation systems.
