Pyrotherm Heavy Wall (HW)

Pyrotherm (HW) Heavy Wall - Atlantex Manufacturing Corp.Heavy Wall Thermal Sleeve – Product Overview

Pyrotherm Heavy Wall (HW) sleeving provides heavy-duty thermal protection and insulation for assemblies in many applications and industries. Manufactured with high-bulk fiberglass, Pyrotherm HW is a highly flexible and expandable, lightweight and versatile braided protective sleeving solution.

Pyrotherm HW withstands continuous exposure to temperatures of 1000°F, is resistant to common industrial fluids and chemicals, and is a completely asbestos-free, non-hazardous insulation sleeve. Pyrotherm HW is used as thermal insulation to reduce energy expenditures due to internal heat loss, reduce surface temperatures, and prolong the working life of assemblies.


Pyrotherm HW Product Data Sheet

Material Safety Data Sheet


Working Temperature: ° F ° C
Continuous: 1000 535
Material Composition Added Value
Highly texturized E-Glass fiber REACh & RoHS compliant
Thick-walled thermal protection Extensive stock for short lead times
Tightly braided insulating sleeve Economical system protection
Extremely expandable and flexible Completely, 100% asbestos-free
Highly flexible and lightweight protective sleeve
Protects hoses, wires, cables, etc. from thermal degradation in industrial, automotive, and appliance applications
High-bulk E-Glass braid provides extraordinary expansion and conformability
Good resistance to most common industrial chemicals and solvents
Pyrotherm HW is a stock product, allowing for fast turnaround time
Available in diameters 1/4″ Nominal ID (6mm) to 4″ ID (102mm)
Bulk lengths available for scrap minimization
Pyrotherm HW – Part Numbers
Sleeve ID* Size Ft/Box Part Number
1/4″ -4 700 ft HW 04200
3/8″ -6 600 ft HW 06200
1/2″ -8 330 ft HW 08200
5/8″ -10 315 ft HW 10200
3/4″ -12 300 ft HW 12200
7/8″ -14 300 ft HW 14200
1″ -16 290 ft HW 16200
1-1/4″ -20 280 ft HW 20200
1-1/2″ -24 225 ft HW 24200
1-3/4″ -28 208 ft HW 28200
2″ -32 190 ft HW 32200
2-1/2″ -40 180 ft HW 40200
3″ -48 170 ft HW 48200
3-1/2″ -56 160 ft HW 56200
4″ -64 140 ft HW 64200
*Nominal ID – Not Lay flat

Need Pricing? To request a quote or discuss specifications please take a moment to fill out our Request a Quote form.
If you would like to request a sample, please do by filling out the Request a Sample Form.
Additional Questions? Give us a call at (610) 518-6601, or email us at
Atlantex Manufacturing operates a Quality Management System which complies with the requirements of ISO 9001:2008.

AMC certifies that all of our products designated as RoHS Compliant conform to the requirements of EC Directive 2011/65/EU (RoHS).

Pyrotex Aerospace-grade Braided Firesleeve is a UL-Recognized Component, and is among the world’s first firesleeves to achieve UL recognition, per UL Standard 1441.

We are a proud member and supplier to NAHAD - The Association for Hose and Accessories Distribution. We look forward to continuing to serve NAHAD in the years to come.

Atlantex Manufacturing is the key supplier to the IDCO group by providing the highest quality sleeving products to your local markets.
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