Thermal Heat Insulation Rubber Foam Tube K-Flex Pipe for HVAC System
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Product Highlights
- Superior Fire Safety: Meets Euroclass BL-S2, d0 and Class 0 standards for enhanced fire protection.
- Closed-Cell Structure: Minimizes moisture penetration to prevent corrosion under insulation without extra barriers.
- Eco-Friendly Certification: Zero ODP/GWP and GREENGUARD Gold certified for low VOC emissions and safe indoor air.
- Comprehensive Inspection: 100% visual and function inspection ensures high quality and reliability for all products.
Product Attributes
- Customization
- Available
- Material
- Nitrile Rubber
- Capability
- Heat-resistant Rubber Hose
- Model NO.
- KST-20*15
- Color
- Black
- Fire Rating
- B1
- Temperature Range
- -165-+110℃
- Water Absorption Rate
- ≤10%
- Performance
- Heatproof, Fireproof, Waterproof
- Transport Package
- Carton
- Specification
- ID: 15mm*Thickness: 13mm*Length: 2m
- Trademark
- K-Flex
- Origin
- China
- HS Code
- 4009410000
- Production Capacity
- 600000PCS/Month
- Package Size
- 208.00cm * 39.00cm * 32.50cm
- Package Gross Weight
- 7.500kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Thermal Heat Insulation Rubber Foam Tube K-Flex Pipe for HVAC System
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Product Description



Property | Value | Unit | Standard | |
Service temperature | -165~110 | ℃ | EN 14706, EN14707 | |
Thermal conductivity | Thickness ≤ 25mm | Thickness ≥ 25mm | W/(m·K) | EN 13787 |
-20 ℃ = 0.031 | -20 ℃ = 0.034 | |||
0 ℃ = 0.033 | 0 ℃ = 0.036 | |||
+20 ℃ = 0.035 | +20 ℃ = 0.038 | |||
+40 ℃ = 0.037 | +40 ℃ = 0.040 | |||
Permeability | ≥ 10000 | ≥ 7000 | μ | EN 12086 |
Fire | K-FLEX ST Sheets: Euroclass BL-S2, d0 Class 0 | EN 13501-1 BS 46 Part 6/7 | ||
Minimises moisture penetration to ensure long-term protection against corrosion under insulation.


Tubes (2m/pc) |
9mm | 15mm | 20mm | ||||||
ID | Tkn | pcs/ctn | ID | Tkn | pcs/ctn | ID | Tkn | pcs/ctn |
6 | 9 | 176 | 6 | 15 | 72 | 6 | 20 | 42 |
10 | 9 | 133 | 10 | 15 | 64 | 10 | 20 | 36 |
12 | 9 | 117 | 12 | 15 | 56 | 12 | 20 | 36 |
15 | 9 | 96 | 15 | 15 | 49 | 15 | 20 | 33 |
19 | 9 | 78 | 19 | 15 | 42 | 19 | 20 | 30 |
22 | 9 | 68 | 22 | 15 | 40 | 22 | 20 | 25 |
25 | 9 | 54 | 25 | 15 | 36 | 25 | 20 | 23 |
28 | 9 | 50 | 28 | 15 | 30 | 28 | 20 | 20 |
32 | 9 | 45 | 32 | 15 | 30 | 32 | 20 | 18 |
35 | 9 | 38 | 35 | 15 | 28 | 35 | 20 | 16 |
38 | 9 | 30 | 42 | 15 | 23 | 38 | 20 | 16 |
42 | 9 | 30 | 48 | 15 | 20 | 42 | 20 | 16 |
45 | 9 | 30 | 60 | 15 | 18 | 48 | 20 | 15 |
48 | 9 | 25 | 76 | 15 | 15 | 60 | 20 | 12 |
60 | 9 | 23 | 89 | 15 | 12 | 76 | 20 | 10 |
89 | 20 | 9 | ||||||
*Made to order. Minimum order quantities and different lead times may apply.Please confirm with our customer service representative when place an order. Self-adhesive option available upon request. Minimum order quantities and different lead times may apply. | ||||||||
25mm | 32mm | 40mm | ||||||
ID | Tkn | pcs/ctn | ID | Tkn | pcs/ctn | ID | Tkn | pcs/ctn |
10 | 25 | 27 | ||||||
12 | 25 | 25 | ||||||
15 | 25 | 23 | ||||||
19 | 25 | 22 | ||||||
22 | 25 | 20 | 22 | 32 | 12 | 22 | 40 | 9 |
25 | 25 | 16 | 25 | 32 | 12 | |||
28 | 25 | 16 | 28 | 32 | 12 | 28 | 40 | 8 |
32 | 25 | 15 | 32 | 32 | 10 | 32 | 40 | 6 |
35 | 25 | 15 | 35 | 32 | 10 | 35 | 40 | 6 |
38 | 25 | 15 | 38 | 32 | 9 | 38 | 40 | 6 |
42 | 25 | 12 | 42 | 32 | 9 | 42 | 40 | 6 |
45 | 25 | 12 | 45 | 32 | 8 | 45 | 40 | 6 |
48 | 25 | 11 | 48 | 32 | 8 | 48 | 40 | 6 |
54 | 32 | 6 | 54 | 40 | 6 | |||
60 | 25 | 8 | 60 | 32 | 6 | 60 | 40 | 6 |
76 | 25 | 7 | 76 | 32 | 6 | 76 | 40 | 4 |
89 | 25 | 6 | 89 | 32 | 6 | 89 | 40 | 4 |
*Made to order. Minimum order quantities and different lead times may apply.Please confirm with our customer service representative when place an order. Self-adhesive option available upon request. Minimum order quantities and different lead times may apply. | ||||||||







About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR254715". Items marked "" are certified.
Company Profile
Myreal Energy Saving (Shanghai) Co., Ltd. - Integrated Insulation Supplier & System Solution Provider
Founded in May 2014, Myreal Energy Saving (Shanghai) Co., Ltd. is a professional integrated supplier of thermal insulation materials and a total solution provider for insulation systems. We combine extensive product resources with engineering expertise to deliver tailored, high-performance insulation solutions across industries.
With over 15 years of collective experience in insulation materials and engineering, our team brings deep technical knowledge, strong industry connections, and a forward-looking approach. We continuously track global insulation trends and invest in emerging technologies and innovative products-driving progress within the industry and offering our clients cutting-edge, reliable solutions.
As an authorized distributor of world-leading brands-including Armacell (flexible foam rubber insulation), Owens Corning (glass wool), and Cherry Blossom rock wool (ABM)-we also partner with well-known domestic manufacturers to supply a full spectrum of thermal and acoustic insulation materials. Armacell, the inventor of flexible foam rubber, is a global benchmark in insulation; Owens Corning, a global leader in glass fiber technology and building materials, delivers high-performance glass wool solutions trusted worldwide. Our product portfolio now comprises over ten categories: Foam rubber (elastomeric foam), glass wool, rock wool, foam glass, ceramic fiber, calcium silicate, XPS, EPS, PU/PIR, nano-porous aerogel, ceramic insulation board, and more. These solutions serve a wide range of sectors-civil and industrial construction, petrochemicals, marine, automotive, pharmaceutical, semiconductor, data centers, and beyond.
Our track record speaks to our capability. Since 2019, we have been the core Armacell supplier for the HVAC water and air systems at the Tesla Gigafactory in Shanghai, consistently delivering high-quality elastomeric foam insulation through 2022, with cumulative supply exceeding 10, 000 cubic meters. We are a trusted partner to leading engineering and construction firms such as China Construction Installation Group, China Construction Eighth Engineering Division, China Construction Third & Fourth Engineering Bureaus, Shanghai Construction No. 5 Construction Group, China Electronics System Engineering No. 4 Construction Co., Shanghai Baoye Group, China Fifth Metallurgical Group, and numerous specialized subcontractors. To each collaboration we bring responsive supply chain management, rigorous quality assurance, and proactive technical support.
Our name, MYREAL, is inspired by the Chinese transliteration "Mai Rui"-it embodies real, reliable and responsible. True to our name, we operate with transparency, honesty, and a commitment to mutual benefit. We actively engage with developers, consultants, cost engineers, design institutes, and contractors, building long-term partnerships based on trust and shared success.
Real. Reliable. Responsible.
These three words define who we are and how we work. We deliver genuine products, dependable performance, and accountable service-every time.
We look forward to connecting with you, advancing the application of state-of-the-art insulation technologies, preserving precise temperature control, and contributing to a more energy-efficient and sustainable world.
About Our Factory & Business Background
- Address
- Building 2-109, Jinglian Rd. No. 398, Minhang District, Shanghai, China
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Pc
-
Supply Chain Partners
- 25
Our Production Capability & Technical Expertise
- Main Products
- Foam Rubber, Glass Wool, Rock Wool, Foam Glass, XPS, Ceramic Fiber Insulation, Ceramic Insulation Board, Calcium Silicate, PU/PIR, EPS
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Full Customization, Customization from Designs, Minor Customization, Flexible customization
-
OEM Service Available
- Yes
-
Traceability of Raw Materials
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Export Year
- 11 Years
-
Main Markets
- Europe, Southeast Asia/ Mideast, Africa, Australia
-
Repeat Buyers Choice
- 50%~80%
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- Yes
FAQ
- Is the product self-adhesive?
- Yes, a self-adhesive option is available upon request to simplify installation and reduce the need for extra adhesives.
- What are the fire safety ratings?
- The product holds Euroclass BL-S2, d0 and Class 0 fire ratings, ensuring excellent fire safety performance.
- Do you offer customization services?
- Yes, we provide full customization, minor customization, and customization from samples or designs.
- Is the product eco-friendly?
- Yes, it has zero Ozone Depletion Potential, is GREENGUARD Gold certified, and is free of formaldehyde.
- How are the products inspected?
- We perform 100% inspection on finished products, including visual and functional checks, with full raw material traceability.
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