Fireproof Class 1 Closed Cell Rubber Foam Sheet For Mechanical Pipe Insulation 25mm
Basic Properties
Place of Origin:China
Brand Name:K-Flex
Certification:CE,EN 14304,EN 13501-1
Trading Properties
Minimum Order Quantity:1 carton
Standard Packaging:Cartons / PE Bags
Delivery Time:15–20 days
Payment Terms:T/T
Supply Ability:Subject to order quantity and specifications
Specifications
| Fireresistance: | Class 1 / Class O | Producttype: | Elastomeric Insulation |
|---|---|---|---|
| Flexibility: | High | Environmentalcompliance: | Contains No CFCs, HCFCs, Or PBDEs |
| Material: | Closed-cell Synthetic Rubber | Thermalconductivity: | 0.034 W/m·K |
| Applications: | HVAC, Refrigeration, Plumbing, Industrial Insulation | Compressionset: | Less Than 5% After 22 Hours At 70°C |
| Uvresistance: | Good | Productname: | K-Flex |
| Temperaturerange: | -40°C To +105°C | Chemicalresistance: | Resistant To Oils And Chemicals |
| Sizesavailable: | Rolls, Sheets, Tubes In Various Thicknesses | Density: | 56 Kg/m³ |
| Watervaporpermeability: | 0.1 Perm-inch | Color: | Black |
| Standardscompliance: | ASTM C534, UL 94 | Installationmethod: | Self-adhesive Or Mechanical Fastening |
Product Description

Product Description

K-FLEX Class 1 Tube
K-FLEX CLASS 1 Tubes fulfill all requirements for commercial HVAC, heating & cooling piping, plumbing, tank and fitting insulation, covering all projects needing dependable thermal insulation and condensation control.The elastomeric closed-cell insulation tube can be supplied in standard lengths or custom cut-to-length variants, with optional self-adhesive backing.
This practical innovation features built-in adhesive tape for fast, straightforward installation. The system is engineered to cut installation duration, minimize reliance on separate adhesives and optimize working conditions on construction sites.
This practical innovation features built-in adhesive tape for fast, straightforward installation. The system is engineered to cut installation duration, minimize reliance on separate adhesives and optimize working conditions on construction sites.
K-FLEX CLASS 1 Sheets

K-FLEX CLASS 1 Sheets meet all the requirements demanded by civil and industrial refrigeration, air conditioning, plumbing, insulation of tanks, ducts, equipment surfaces and all other applications that need thermal insulation and anti-condensation protection.
K-FLEX CLASS 1 closed-cell elastomeric insulation sheets are available in standard rolls or custom cut-to-size sizes, and can be manufactured with self-adhesive backing.
This practical design simplifies field installation. The built-in self-adhesive layer helps shorten construction hours, lowers the consumption of extra glue, and brings cleaner and more efficient working environments for construction workers.
This practical design simplifies field installation. The built-in self-adhesive layer helps shorten construction hours, lowers the consumption of extra glue, and brings cleaner and more efficient working environments for construction workers.
Product Details



Technical Data
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Item
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Performance Specification
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Apparent Density
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≤70 kg/m³
|
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Fire Performance
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Class B1 Flame Retardant
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Thermal Conductivity (Mean Temperature)
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-20℃: ≤0.033 W/(m·K)0℃: ≤0.035 W/(m·K)25℃: ≤0.038 W/(m·K)
|
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Water Vapor Permeability Coefficient
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≤1.96×10¯¹¹ g/(m·s·Pa)
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Moisture Resistance Factor
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≥10000
|
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Vacuum Water Absorption
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≤0.5%
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Dimensional Change Rate (105℃±3℃, 7 days)
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Length ≤7%Width ≤7%Thickness ≤15%
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Aging Resistance (150h)
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Slight wrinkling, no cracks, no deformation
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Noise Reduction Performance
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Approx. 32 dB
|
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Mold Resistance
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No mold growth
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Operating Temperature Range
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-40℃ ~ +105℃
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Smoke Toxicity Performance
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Qualified ZA3 Level (Safe Level)
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Product Specification
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Pipe Size
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Insulation Tubing Size (mm)
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|||||||
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mm
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Copper pipe (inch)
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Iron pipe (DN)
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9 series size
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15 series size
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20 series size
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25 series size
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32 series size
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40 series size
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|
10
|
3/8"
|
|
9×10
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15×10
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20×10
|
—
|
—
|
—
|
|
12
|
1/2"
|
8
|
9×12
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15×12
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20×12
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25×10
|
—
|
—
|
|
15
|
5/8"
|
—
|
9×15
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15×15
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20×15
|
25×15
|
—
|
—
|
|
19
|
3/4"
|
15
|
9×19
|
15×19
|
20×19
|
25×19
|
32×19
|
—
|
|
22
|
7/8"
|
—
|
9×22
|
15×22
|
20×22
|
25×22
|
32×22
|
—
|
|
25
|
1"
|
20
|
9×25
|
15×25
|
20×25
|
25×25
|
32×25
|
—
|
|
28
|
1 1/8"
|
—
|
9×28
|
15×28
|
20×28
|
25×28
|
32×28
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40×28
|
|
32
|
1 1/4"
|
—
|
9×32
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15×32
|
20×32
|
25×32
|
32×32
|
—
|
|
35
|
1 3/8"
|
25
|
9×35
|
15×35
|
20×35
|
25×35
|
32×35
|
40×35
|
|
38
|
1 1/2"
|
—
|
9×38
|
—
|
20×38
|
25×38
|
32×38
|
—
|
|
42
|
1 5/8"
|
32
|
9×42
|
15×42
|
20×42
|
25×42
|
32×42
|
40×42
|
|
45
|
1 3/4"
|
—
|
9×45
|
15×45
|
20×45
|
25×45
|
32×45
|
—
|
|
48
|
1 7/8"
|
40
|
9×48
|
15×48
|
20×48
|
25×48
|
32×48
|
40×48
|
|
54
|
2 1/8"
|
—
|
9×54
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15×54
|
20×54
|
25×54
|
32×54
|
—
|
|
57
|
2 1/4"
|
—
|
9×57
|
15×57
|
20×57
|
25×57
|
32×57
|
—
|
|
60
|
2 3/8"
|
50
|
9×60
|
15×60
|
20×60
|
25×60
|
32×60
|
40×60
|
|
76
|
—
|
70
|
—
|
15×76
|
20×76
|
25×76
|
32×76
|
40×76
|
|
89
|
—
|
80
|
—
|
15×89
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20×89
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25×89
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32×89
|
40x89
|
|
Description Example for Tubing: 25×89 means tubing with inner diameter 89mm and thickness of 25 series.
Notes: For insulation tubing with inner diameter ≥ 108mm, we recommend covering with sheets of corresponding thickness. We can also produce tubing with inner diameter ≥89mm, thickness 40mm, 50mm and other special specifications. Please contact our sales department if special sizes are required |
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SHEET
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Sheet Size Series
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9
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15
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20
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25
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30
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32
|
40
|
50
|
|
Sheet Thickness (mm)
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9
|
15
|
20
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25
|
30
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32
|
40
|
50
|
|
Sheet Width (mm)
|
1200
|
1500
|
1500
|
1500
|
1500
|
1500
|
1500
|
1200
|
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Sheet Length (m)
|
20
|
14
|
10
|
8
|
6
|
6
|
5
|
4
|
|
Description Example for Sheet: KF25 means sheet of 25 series with standard thickness 25mm.
Notes: Please contact our sales department for special sheet specifications |
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Application

Packing
K-Flex foam rubber
K-Flex foam rubber products are supplied in cartons or plastic bag package for easy of handling, transportation, storage and identification. Products should be stored indoors or under a waterproof covering



Our Factory

Contact Details
Myreal Energy Saving (Shanghai) Co., Ltd.
Contact Person: Mrs. Betsy Ouyang
Tel: +86 17740800950