Kingflex Kingflex
UK Market Specifications

Rubber Foam Insulation Tube Manufacturers & Factories for the United Kingdom market

Premium BS 476 Class 0 Certified Flexible Elastomeric Thermal Insulation Systems for Sustainable HVAC, Building & Process Piping Infrastructure

Send Inquiry Now
Fast Track UK Stock Items

Standard UK Specifications - Premium Range

China Anti-aging Rubber Foam Insulation Tube Manufacturers
Anti-Aging NBR

China Anti-aging Rubber Foam Insulation Tube Manufacturers, Quotes

View UK Specs
Wholesale Kingflex insulation tube excellent product performance
High Performance

Wholesale Kingflex insulation tube excellent product performance Supplier, Suppliers

View UK Specs
China Kingflex Rubber & Plastic closed-foam thermal insulation
Closed-Foam NBR

China Kingflex Rubber & Plastic is a flexible closed-foam thermal insulation Manufacturer, Quotes

View UK Specs
China NBR PVC rubber foam closed cell insulation material
NBR-PVC Blend

China NBR PVC rubber foam closed cell insulation material Factory, Quotes

View UK Specs
UK Industrial Insights

Navigating BS 5422 & Part L Regulations in the UK Market

The United Kingdom's building services sector operates under some of the world's most rigorous regulatory frameworks. The combined pressure of the Building Regulations Approved Document L (Conservation of Fuel and Power) and the target of Net Zero 2050 has forced building services engineers and specifiers to re-evaluate their thermal insulation requirements.

In the damp, maritime climate of Great Britain, thermal efficiency cannot be separated from moisture management. Condensation on chilled water pipes and refrigerant lines represents a major risk for mold growth, corrosion under insulation (CUI), and mechanical breakdown. Specifying NBR/PVC closed-cell elastomeric foam tubes from reliable manufacturers prevents this risk through a built-in water vapor barrier ($\mu$-factor $\ge 10,000$).

UK Mechanical Specifications Compliance

Our range conforms perfectly to BS 5422:2023 (Method for specifying thermal insulating materials on pipes, ductwork, and equipment) which ensures maximum energy conservation and minimum carbon footprints for UK building systems.

Why Class 0 Fire Rating Matters

Following safety revisions in British construction, fire spread performance is non-negotiable for high-rise buildings, hotels, hospitals, and transportation sectors. Kingflex elastomeric foam tubes meet:

  • BS 476 Part 6: Fire propagation test (Index I ≤ 12, sub-index i1 ≤ 6).
  • BS 476 Part 7: Class 1 Surface spread of flame.
  • Combined to form a UK Class 0 rating, certifying the highest fire-safety security in flexible cellular insulation.
  • Low smoke toxicity and self-extinguishing behavior to comply with local safety guidelines.
Industry 4.0 Manufacturing

China Factory Efficiency & Supply Chain Resilience

As global supply chains face fluctuating logistics timelines, Kingflex utilizes Industry 4.0 smart manufacturing principles to ensure uninterrupted supply lines to major UK shipping ports like Southampton, Felixstowe, and London Gateway.

Our automated batching, extrusion, and foaming lines reduce variance in cell size, achieving a uniform closed-cell ratio over 98%. This guarantees consistent thermal conductivity ($\lambda \le 0.034$ W/(m·K) at 0°C) across bulk production runs.

  • 5 large automatic assembly lines with 600,000+ m³ annual capacity.
  • In-house R&D with 8 professional thermodynamic and chemical engineers.
  • Raw material price hedging to shield UK distributors from volatility.
  • Fully traceable batch systems compliant with CE, REACH, RoHS standards.
600K
m³ Annual Capacity
40+
Years Heritage
66+
Global Markets
98%
Closed-Cell Rate

Direct Export & Logistical Security

Our packaging is optimized for long-distance sea container freight, reducing crushed or deformed tube profiles during shipping. We work directly with top shipping lines to ensure reliable delivery times to UK hubs.

Kingflex Manufacturing Facilities
Heritage & Authority

Our Company & Deep History

Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in well-known capital of green-building materials in Dacheng, China. It is an energy-saving environmental friendly enterprise concentrating on research, development, production, and sales.

In operation, Kingflex takes energy saving and consumption reduction as the core concept. We provide solutions regarding insulation by means of consultation, research and development, production, installation guidance, and post-sale service to lead the development of the global building materials industry.

Established by Jinwei Group: Kingflex is backed by more than 40 years of industry experience. Established in 1979, the group was the first thermal insulation manufacturer north of the Yangtze River.
Human Capital

Our Team & Customer Commitment

Our employees are amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service to our clients worldwide.

Our structural engineering team features 8 professional engineers in the R&D Department, 6 professional international sales consultants specializing in the UK and European compliance codes, and 230 dedicated workers in the production department.

Kingflex R&D Team
High-Demand Sectors

Elastomeric Insulation Applications in the United Kingdom

1. Central Air Conditioning & HVAC

Widely deployed in commercial buildings, hotels, and malls throughout major UK cities like London, Manchester, and Birmingham. High condensation protection and acoustic absorption inside plenum chambers.

2. Rail & High-Speed Transit

Meeting safety standards for rolling stock and underground carriage HVAC infrastructure, minimizing thermal transfer and dampening structure-borne sound in complex passenger lines.

3. High-Temperature & Process Piping

Ideal for UK chemical plants, cleanrooms, and district heating systems where process stability relies on insulation materials resisting thermal aging and mechanical compression.

Technical Matrix

Kingflex Elastomeric Tube Standard Dimensions & Advantages

Black Rubber Foam Insulation Sheet Roll

Material: NBR/PVC Blend

Thickness Range: 6mm - 50mm

Density: 40 - 55 kg/m³

Service Temperature: -40℃ to 105℃

Key Material Advantages:

  1. Foams evenly and fully, closed-cell rate over 98%, excellent thermal insulation.
  2. Full closed-cell structure, low moisture absorption, stable long-term thermal conductivity.
  3. Compression resilience over 80%.
  4. Flame retardant, self-extinguishing off fire.
  5. Low thermal conductivity, high moisture resistance factor.

Black Rubber Foam Insulation Pipe

Material: NBR/PVC Blend

Thickness Range: 9mm - 40mm

Inside Diameter (ID): 6mm - 114mm

Density: 40 - 55 kg/m³

Key Product Advantages:

  1. Uniform foam bubble structure minimizes energy losses.
  2. Professional pipe spraying equipment ensures even coating thickness.
  3. Prevents outer surface moisture condensation in high humidity.
  4. Drastically reduces pipeline freezing and cracking risks during UK winters.
  5. High elasticity allows rapid installation around corners and elbows.

Global Certification & Lab Verification

CE Certificate

CE Certified EN 14304

Safety Standard Certification

BS 476 Compliance

ISO Certification

ISO 9001:2015 Quality

ASTM Certification

ASTM Materials Testing

Technical Support

Frequently Asked Questions (UK Market Edition)

Q1: What is elastomeric rubber foam insulation used for?
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. In the UK market, it is standard for chilled water lines in mechanical rooms to prevent condensation.
Q2: Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation is flame retardant and meets BS 476 Class 0 and international fire safety standards required for UK commercial construction and mechanical specifications.
Q3: What is the difference between rubber foam and rock wool insulation?
Rubber foam is flexible, closed-cell, and moisture-proof, suitable for HVAC, chilled water, and refrigeration systems where condensation prevention is key. Rock wool is open-cell, fibrous, high-temperature resistant, and ideal for thermal protection in industrial furnaces or dry steam applications.
Q4: Do you provide customized insulation products?
Yes, we provide complete OEM services, including custom tube wall thicknesses (from 6mm to 50mm), internal diameters (ID), pre-cut piping systems, and self-adhesive backings for fast site installation.
Q5: What certifications do your products have?
Our products have passed BS 476 (Class 0), CE (EN 14304), REACH, RoHS, UL94, and ASTM certifications, ensuring compliant quality and full compatibility with safety regulations globally.
Q6: Does Kingflex products have traceability?
Yes, every manufacturing run is logged. We print trace tracking codes directly onto the external skins of our rubber insulation tubes, letting QA engineers audit installations from factory floor to mechanical room.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
We can produce from 6mm up to 50mm wall thickness in standard sheet rolls, catering to heavy-duty cryogenic installations and large-diameter HVAC ductwork.
Q8: What is the service life of rubber plastic pipe and board?
When installed correctly and used within recommended operating conditions (-40℃ to 105℃), the service life is between 10 to 15 years, maintaining long-term k-value stability due to the aging-resistant compound.
Verified Trust & Execution

Factory Verification & Real Client Transactions

Client Communication Screenshot

Technical Spec Confirmation

Production QC Testing

Order Loading Details

Finished Product Inspection

Packaging & Labelling Checks

Shipping Container Check Logistics Track Documents

Strict QC Procedures & trace audits

Each export batch to the UK is inspected for internal diametrical tolerances, wall thickness stability, density, and skin finish quality. By documenting our logistics and chat verifications, we offer full transparent purchasing to UK buyers.

Extrusion line Foaming heat line Pipe slitting equipment Roll winding machine
Raw NBR mix Quality inspection bench Storage of raw coils Package lines
System Extensions

Specialty Insulation Range for Advanced Projects

Rubber elastomeric foam insulation tube
Elastomeric

Rubber elastomeric foam insulation tube

View Details
Corrosion Resistant Rubber Foam Insulation Tube
Corrosion-Resistant

Corrosion Resistant Rubber Foam Insulation Tube

View Details
Elastic Rubber Foam Insulation Pipe
High Elasticity

Elastic Rubber Foam Insulation Pipe

View Details
Black Rubber Foam Insulation Pipe
Standard Black

Black Rubber Foam Insulation Pipe

View Details
Foam Rubber Foam Insulation Tube
HVAC Standard

Foam Rubber Foam Insulation Tube

View Details
HVAC Rubber Foam Insulation Tube
HVAC Optimized

HVAC Rubber Foam Insulation Tube

View Details
Elastomeric rubber foam insulation system for UK applications
System Integration

Elastomeric rubber foam insulation system for UK application

View Details
Kingflex flexible insulation material for cryogenic
Cryogenic Range

Kingflex flexible insulation material for cryogenic

View Details
Cryogenic rubber foam for low temperature
Cryo Low-Temp

Cryogenic rubber foam for low temperature and h...

View Details
Elastomeric cryogenic insulation
Cryogenic Grade

Elastomeric cryogenic insulation for low temper...

View Details
Rock Wool Insulation Board
High-Temp Rockwool

Rock Wool Insulation Board

View Details
Rock Wool thermal insulation blanket
Mineral Blanket

rock wool thermal insulation blanket

View Details
Complete NBR Range Catalog

Remaining OEM Portfolio & Wholesale Specs

Wholesale KINGFLEX brand rubber foam insulation tube
Insulation Effect

Wholesale KINGFLEX brand rubber foam insulation tube has a good insulation effect Supplier, Suppliers

View Product Page
China Kingflex insulation tube is a black, flexible elastomeric foam tube
Black Elastomeric

China Kingflex insulation tube is a black, flexible elastomeric foam tube Factory, Quotes

View Product Page
Wholesale Kingflex NBR Elastomeric Insulation Rubber Foam Tube Manufacturer
NBR Elastomeric

Wholesale Kingflex NBR Elastomeric Insulation Rubber Foam Tube Manufacturer, Factory

View Product Page
Wholesale KINGFLEX INSULATION TUBE Factory, Pricelist
Wholesale Pricelist

Wholesale KINGFLEX INSULATION TUBE Factory, Pricelist

View Product Page
Wholesale Kingflex rubber foam pipe has low heat conductivity
Low Conductivity

Wholesale Kingflex rubber foam pipe has low heat conductivity Manufacturer, Suppliers

View Product Page
Wholesale Kingflex rubber foam product Supplier
NBR Compound

Wholesale Kingflex rubber foam product Supplier, Suppliers

View Product Page
China Kingflex refrigerant pipe insulation Supplier
Refrigerant Pipe

China Kingflex refrigerant pipe insulation Supplier, Factory

View Product Page
China Kingflex rubber Foam plastic Insulation Pipe Manufacturer
Foam Plastic

China Kingflex rubber Foam plastic Insulation Pipe Manufacturer, Pricelist

View Product Page
Wholesale Insulation rubber foam product Factories
Bulk Factories

Wholesale Insulation rubber foam product Factories, Pricelist

View Product Page
Wholesale Kingflex rubber foam pipe uses NBR
Pure NBR Base

Wholesale Kingflex rubber foam pipe uses NBR(nitrile-butadiene rubber) as main raw material Supplier, Suppliers

View Product Page
Wholesale Elastomeric Cryogenic Insulation Series Suppliers
Cryo Series

Wholesale Elastomeric Cryogenic Insulation Series Suppliers, Quotes

View Product Page
China Dienes Cryogenic Temperature Insulation Rubber Foam Series Supplier
Dienes Cryogenic

China Dienes Cryogenic Temperature Insulation Rubber Foam Series Supplier, Factory

View Product Page

Need Customized BS 5422 Thermal Calculations & Pricing?

Get direct support from our senior thermodynamic engineers. We provide comprehensive mechanical submittals, samples, and compliance reports tailored for UK municipal, commercial, and heavy industrial contracts.

Send Inquiry Now