Kingflex
Closed-Cell Thermal & Mechanical Decoupling Inserts for Piping Brackets
In modern industrial design and HVAC commercial builds, pipes are the lifelines of HVAC equipment, process plants, and refrigeration setups. However, a major vulnerability in mechanical piping installations is thermal bridging—the thermal loss occurring through uninsulated mounting locations. When traditional plumbing support brackets are clamped directly around hot or cold pipelines, heat transfer occurs rapidly. This compromises the energy efficiency of the structure and invites severe condensation, leading to dripping, structural degradation, and mold growth.
As a leading China Plumbing Support Brackets Manufacturer, Kingflex supplies premium structural elastomeric foam materials specifically designed to act as insulation inserts inside mechanical pipe clamps and plumbing support bracket systems. These high-performance inserts offer robust mechanical strength to support heavy pipe weights while preventing energy transfer between the pipeline and the structural hanger.
The global market for pipe hangers, structural brackets, and insulated pipe clamps is shifting toward advanced insulation integration. Commercial building regulations such as the IECC (International Energy Conservation Code) and standards like ASHRAE 90.1 mandate complete pipeline insulation coverage. In the past, installer crews improvised on-site by slicing rubber tubes to pad metal brackets, a practice prone to uneven load compression, compromised vapor barriers, and eventual insulation failure.
Today, engineering procurement groups seek integrated, pre-fabricated bracket inserts. Standardized insulated plumbing support bracket inserts utilize high-density polyurethane cores, rock wool cores, or high-density elastomeric closed-cell foam cores wrapped in a vapor barrier. These systems ensure that:
| System Classification | Typical Applications | Optimal Insulation Medium | Temperature Limits |
|---|---|---|---|
| Ultra-Low Cryogenics | LNG, industrial gas pipelines, medical cooling | Kingflex Cryogenic NBR system | -200°C to -40°C |
| HVAC Refrigeration | Chilled water systems, VRF lines, DX evaporators | Closed-cell elastomeric NBR/PVC foam | -40°C to 105°C |
| Process Steam & Heating | High-temp steam lines, hot water distribution | High-density Rock Wool or Alkadiene rubber | Up to 650°C (for Rock Wool) |
Legacy of Excellence, Innovation, and Global Supply Reliability
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex's research development and production department is located in the well-known capital of green-building materials in Dacheng, China. We are an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales. In operation, Kingflex takes energy saving and consumption reduction as its core concept.
Kingflex was established by the Jinwei Group, which possesses more than 40 years of industry history. Established in 1979, the group was the first manufacturer of thermal insulation materials north of the Yangtze River. We provide insulation solutions via consultation, R&D production, installation guidance, and post-sale service to lead the development of the global building materials industry.
At present, Kingflex operates 5 large automatic assembly lines with an annual production capacity exceeding 600,000 cubic meters. We are a designated production enterprise certified by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. Kingflex thermal insulation products are widely used in construction, petroleum, chemical, national defense, aerospace, and other industries. In the past 16 years, our products have been exported to more than sixty-six countries worldwide.
Our team is a tight-knit, talented group with a shared vision of delivering first-class service. Our organization features 8 professional engineers in our R&D Department, 6 international sales specialists, and 230 workers in the production division.
To perform reliably within plumbing support brackets, insulation materials must resist crushing forces while maintaining their low thermal conductivity. Kingflex elastomeric materials are engineered with an advanced closed-cell matrix that ensures optimal physical characteristics:
Features compression resilience over 80%. This prevents the material from collapsing permanently under the heavy static load of horizontal plumbing pipelines.
Boasts a closed-cell rate over 98%, ensuring stable long-term thermal conductivity and an exceptionally low moisture absorption rate.
Meets stringent fire safety standards globally (BS 476, UL94, ASTM), offering self-extinguishing safety characteristics in building ventilation shafts.
| Property | Test Standard | Kingflex Standard Values |
|---|---|---|
| Thermal Conductivity (λ) | ASTM C518 / ISO 8301 | ≤ 0.034 W/(m·k) at 0°C |
| Moisture Resistance Factor (μ) | BS EN 12086 | ≥ 10,000 (Vapor Barrier Built-in) |
| Density | GB/T 6343 | 40 - 55 kg/m³ |
| Service Temperature | - | -40°C to +105°C (Ultra-low ranges available) |
| Fire Rating | BS 476 Class 0 / Class 1 | Compliant and Certified |
Verified by Third-Party Standards & Trusted in Multi-Scale Global Commercial Projects
As smart cities and high-performance buildings shape modern construction, mechanical plumbing systems must evolve. Kingflex is currently directing R&D efforts toward key innovations in piping brackets and insulated support tech:
With global net-zero targets in place, developers demand green building materials. Kingflex is researching bio-based raw plasticizers to replace conventional oil-derived formulas. This ensures that the insulated pipe inserts retain their elastic compression properties while reducing the embodied carbon footprint by up to 35%.
Integrating miniature IoT sensors directly inside rubber foam inserts is a major industry goal. By embedding thermal sensors at the support bracket interfaces, building management systems can monitor real-time condensation levels, thermal conductivity spikes, or structural shifts directly from their control dashboards, enabling predictive maintenance.
For large-diameter chilled water lines, traditional light foam can collapse under high stress. The next generation of Kingflex support bracket inserts uses a dual-density architecture—a high-density core for load-bearing and a lower-density outer layer for optimal thermal containment.
Standard Dimension: NBR/PVC composition, Thickness: 6mm-50mm, Density: 40-55kg/m³, Service Temperature: -40℃ to 105℃.
Primary Application: Ideal for wrapping large-scale ducting, HVAC ventilation equipment, water supply lines, and commercial cooling tanks to mitigate thermal bridging.
Standard Dimension: Thickness: 9mm-40mm, ID Range: 6mm-114mm, Density: 40-55kg/m³, Service Temperature: -40℃ to 105℃.
Primary Application: Direct insertion sleeve for chilled/hot water pipes, ventilation and plant machinery rooms, solar systems, and mechanical cooling networks.
Technical Clarifications on Piping Insulations and Bracket Supports
State-of-the-Art Extrusion, Foaming, and Finishing Systems
Precision Elastomeric Foam Tube & Sheet Formulations
Closed-Cell NBR/PVC Rubber Foams & Inorganic Rockwool Specialties
