Cold Thermal Insulation Heatproof K-Flex Foam Rubber Pipe for Chilled Water Pipeline

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.

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.

Product Details

Technical Data

Item	Performance Specification
Apparent Density	≤70 kg/m³
Fire Performance	Class B1 Flame Retardant
Thermal Conductivity (Mean Temperature)	-20℃: ≤0.033 W/(m·K)0℃: ≤0.035 W/(m·K)25℃: ≤0.038 W/(m·K)
Water Vapor Permeability Coefficient	≤1.96×10¯¹¹ g/(m·s·Pa)
Moisture Resistance Factor	≥10000
Vacuum Water Absorption	≤0.5%
Dimensional Change Rate (105℃±3℃, 7 days)	Length ≤7%Width ≤7%Thickness ≤15%
Aging Resistance (150h)	Slight wrinkling, no cracks, no deformation
Noise Reduction Performance	Approx. 32 dB
Mold Resistance	No mold growth
Operating Temperature Range	-40℃ ~ +105℃
Smoke Toxicity Performance	Qualified ZA3 Level (Safe Level)

Product Specification

Pipe Size			Insulation Tubing Size (mm)
mm	Copper pipe (inch)	Iron pipe (DN)	9 series size	15 series size	20 series size	25 series size	32 series size	40 series size
10	3/8"		9×10	15×10	20×10	—	—	—
12	1/2"	8	9×12	15×12	20×12	25×10	—	—
15	5/8"	—	9×15	15×15	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	40×28
32	1 1/4"	—	9×32	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	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	20×89	25×89	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

SHEET
Sheet Size Series	9	15	20	25	30	32	40	50
Sheet Thickness (mm)	9	15	20	25	30	32	40	50
Sheet Width (mm)	1200	1500	1500	1500	1500	1500	1500	1200
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

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

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