Kingflex
Kingflex
Premier elastomeric, acoustic, and thermal protection items sourced straight from Kingflex's advanced processing lines.
Understanding copper pipe insulation sizes requires deep analysis of nominal wall thicknesses, internal diameters (ID), and external diameters (OD). Copper piping typically adheres to ASTM B88 standards, categorized into Types K, L, and M. Each has varying wall thicknesses but identical outer diameters. Thermal insulation designed for copper pipelines must conform exactly to these outer dimension specifications to prevent air gaps that cause condensation and thermal bridging.
For commercial projects, selecting incorrect insulation sizes can lead to system degradation. The elastomeric rubber foam insulation must fit snug against the pipe surface. Too tight, and the material cell structure compresses, reducing the R-value; too loose, and moisture migrates between the pipe and the foam, leading to Under-Insulation Corrosion (CUI).
Comprehensive reference guide matching nominal copper pipe sizes with correct elastomeric insulation internal diameters (ID) and wall thicknesses.
| Copper Pipe Nominal Size (in) | Copper Pipe OD (in / mm) | Insulation ID Required (mm) | Available Wall Thicknesses (mm) | Standard Length (m) |
|---|---|---|---|---|
| 1/4" | 0.375" / 9.5 mm | 10 mm | 6mm, 9mm, 13mm, 19mm | 1.8m / 2.0m |
| 3/8" | 0.500" / 12.7 mm | 13 mm | 6mm, 9mm, 13mm, 19mm, 25mm | 1.8m / 2.0m |
| 1/2" | 0.625" / 15.9 mm | 16 mm | 9mm, 13mm, 19mm, 25mm, 32mm | 1.8m / 2.0m |
| 5/8" | 0.750" / 19.1 mm | 19 mm | 9mm, 13mm, 19mm, 25mm, 32mm | 1.8m / 2.0m |
| 3/4" | 0.875" / 22.2 mm | 22 mm | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm | 1.8m / 2.0m |
| 7/8" | 1.125" / 28.6 mm | 28 mm | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm | 1.8m / 2.0m |
| 1-1/8" | 1.375" / 34.9 mm | 35 mm | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm | 1.8m / 2.0m |
| 1-3/8" | 1.625" / 41.3 mm | 42 mm | 13mm, 19mm, 25mm, 32mm, 40mm | 1.8m / 2.0m |
| 1-5/8" | 1.875" / 47.6 mm | 48 mm | 13mm, 19mm, 25mm, 32mm, 40mm | 1.8m / 2.0m |
| 2-1/8" | 2.375" / 60.3 mm | 60 mm | 13mm, 19mm, 25mm, 32mm, 40mm, 50mm | 1.8m / 2.0m |
Kingflex Insulation Co., Ltd. stands as a professional manufacturing and trading group specialized in high-performance thermal insulation products. Nestled in Dacheng, China, the designated green building materials hub, Kingflex leads research and development alongside scalable industrial manufacturing.
Founded by the Jinwei Group, which boasts a rich history of over 40 years dating back to 1979, the group pioneered thermal insulation material manufacturing north of the Yangtze River. Operating under the core philosophy of "energy saving and consumption reduction," Kingflex delivers systematic solutions encompassing comprehensive consulting, high-accuracy R&D, mass production, technical installation guidance, and seamless post-sale support.
The evolution of NBR/PVC elastomeric rubber foam insulation is defined by structural integrity, environmental compliance, and long-term thermal retention. We develop advanced formulations that optimize micro-cell density.
Over 98% closed-cell rate, preventing vapor transmission and water penetration. Ensures constant thermal conductivity under varying ambient moisture environments.
Class 0 and Class 1 ratings under BS 476. Formulated with halogen-free, non-toxic flame retardants that self-extinguish when separated from external heat sources.
Engineered to operate reliably from -40°C to 105°C. Resists micro-cracking and material fatigue in aggressive cycling industrial environments.
An organization's strength lies in its intellectual and operational workforce. The Kingflex team features a highly skilled group working with a shared commitment to quality and service. Our engineering department consists of 8 professional R&D specialists focused on material modifications, while our international division utilizes 6 professional trade managers. The backbone of our operations is our manufacturing team of 230 dedicated workers.
At present, Kingflex operates 5 large-scale automatic assembly lines, producing an annual output capacity exceeding 600,000 cubic meters. Through this capacity, we are designated as a key energy-saving products production enterprise for major ministries including the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Differentiating the parameters, configurations, and core designs of the primary Kingflex elastomeric materials.
Designed for large-diameter copper conduits, air conditioning duct systems, flat surfaces, and complex fittings where pre-formed pipes cannot be installed. Features a high-density, flexible compound with an optional self-adhesive backing.
Primary Applications: Air duct thermal insulation, acoustic damping in equipment rooms, structural expansion gaps, and cold storage room protection.
An extrusion-molded insulation sleeve configured to fit typical copper tubing sizes. Designed to optimize line labor speeds, this product is slipped over or split along the length and sealed for rapid application.
Primary Applications: HVAC lines, domestic plumbing piping, industrial process piping, and liquid gas lines.
Every production batch of Kingflex elastomeric insulation undergoes rigorous testing at our on-site laboratory. Our products are formulated to prevent flame spread and smoke development, which is critical for complex commercial buildings.
Our current certification portfolio includes standard compliance verifications under BS 476, CE, REACH, ROHS, UL94, and ASTM standards. These credentials ensure that our copper pipe insulation materials satisfy rigorous building codes across North America, the EU, the Middle East, and Asia-Pacific.
Procurement professionals must navigate fluctuating raw material pricing, freight shipping logistics, and packaging constraints. Kingflex supports diverse supply chains through optimized packaging designed to reduce volume-based shipping rates.
By consolidating sheet rolls and pre-formed tubes, clients optimize shipping container space. Our logistics department coordinates direct shipping from Chinese ports, ensuring clean transport and timely custom documentation.
Kingflex insulation products are specified globally in challenging high-rise HVAC systems, industrial processing facilities, and high-performance cleanrooms. Our materials protect long copper refrigerant runs under high relative humidity, preventing dripping and ceiling damage.
Our direct client interactions, verified through active project communications, demonstrate high performance in diverse conditions—from dry desert environments in the Middle East to high-humidity tropical zones in Southeast Asia.
Frequently asked questions concerning elastomeric rubber foam insulation sizes, specifications, and project logistics.
Highlighting the processes behind our high-performance thermal insulation products.
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