A graphite-based passive fire protection collar engineered for plastic pipe penetrations. 35–45x expansion ratio. Activates from 180°C (356°F)， Manufactured by FireEG since 1993 — one of the first Chinese producers to achieve UL1479.
Why Engineers Specify the FEG40
The FEG40 addresses a critical gap in legacy firestop products: traditional expandable graphite activates at ~280°C — too slow for earlyfire containment. FireEG’s proprietary low-temperature intumescent graphite begins expanding at 180°C (356°F), forming a dense carbon char barrier before fire can travel through a pipe penetration.
Combined with an industry-leading 35–45x free expansion ratio, the FEG40delivers reliable seal integrity for up to 4 hours (EI 240) across all major plastic pipe materials — tested and UL1479 certified.
Technical Specifications
| Item | Pipe Size | Max Opening | Collar OD | Installation OD | Height |
|---|---|---|---|---|---|
| FEG40 1.5″ | 1.5″ (38mm) | 2″ (51mm) | 3.071″ (78mm) | 4.4″ (112mm) | 1.575″ (40mm) |
| FEG40 2″ | 2.0″ (51mm) | 2.875″ (73mm) | 3.622″ (92mm) | 4.8″ (122mm) | 1.575″ (40mm) |
| FEG40 3″ | 3.0″ (76mm) | 4″ (102mm) | 5.0″ (127mm) | 7.4″ (187mm) | 1.575″ (40mm) |
| FEG40 4″ | 4.0″ (102mm) | 5″ (127mm) | 6.181″ (157mm) | 8.0″ (203mm) | 1.575″ (40mm) |
| Parameter | Value |
|---|---|
| Expansion Ratio | 35–45x (at 450°C, 30 min) |
| Activation Temperature | From 180°C (356°F) |
| Fire Rating | Up to 4 hours (EI 240) |
| Certification | UL1479 / ASTM E814 / China CCC |
| Applicable Pipe Materials | PVC, CPVC, ABS, FRPP, HDPE |
| Shell Material (default) | Powder-coated carbon steel |
| Shell Options | Galvanized steel / Stainless steel |
| Size Range | 1.5″ – 4″ (38mm – 102mm) |
Compatible Pipe Materials & Installation Substrates
Pipe Materials (Tested & Certified)
✓ PVC (polyvinyl chloride)
✓ CPVC (chlorinated PVC)
✓ ABS (acrylonitrile butadiene styrene)
✓ FRPP (flame-retardant polypropylene)
✓ HDPE (high-density polyethylene)
Approved Installation Substrates
✓ Normal-weight and lightweight concrete
✓ Hollow core precast concrete
✓ Concrete masonry units (CMU)
✓ Gypsum wallboard (drywall)
✓ Masonry walls
Certifications & Compliance
FEG40 is one of the few fire collars manufactured in China to carry
UL1479 certification — the primary North American standard for firestop
through-penetration systems, equivalent to ASTM E814 test methodology.
| Certification | Standard | Scope |
|---|---|---|
| UL1479 | ASTM E814 | Fire resistance, smoke tightness, hose stream |
| China CCC (3C) | GB 16670 | Domestic market compliance |
| ISO 9001 | — | Quality management system |
Applicable building codes: IBC (International Building Code),
NFPA 101 (Life Safety Code), local AHJ requirements.
UL Certification Details
Certificate Number: R40652
Report Reference: R40652-20230829
Standard: ANSI/UL 1479 (ASTM E814)
UL System No.: C-AJ-2941
Category: XHJI – Firestop Devices
Issued to: HuaiAnXian Sheng Chang FireEG Co., Ltd.
Date: August 30, 2023
Fire Rating: F Rating 3 Hr / T Rating 3 Hr
→ View our listing on UL Product iQ
→[Download Certificate of Compliance PDF]
Certificate No. R40652 | Issued by UL LLC | Date: 2023-08-30
“Reprinted from Product iQ with permission from UL Solutions” ©2026 UL LLC.
Shell Material Options
Standard – Powder-Coated Carbon Steel
Enhanced – Galvanized Steel
Premium – Stainless Steel
Typical Applications
The FEG40 is specified for combustible pipe penetrations in:
- High-rise residential towers and apartment buildings
- Commercial office complexes and retail developments
- Hospitals, healthcare facilities, and laboratories
- Industrial facilities and manufacturing plants
- Tunnels and underground infrastructure
- Any project requiring IBC or NFPA 101 compliant firestopping
Frequently Asked Questions
Q: What pipes is the FEG40 designed for? The FEG40 is tested and UL1479 certified for combustible plastic pipes including PVC, CPVC, ABS, FRPP, and HDPE. It is not required for non-combustible pipes such as cast iron or copper.
Q: What is the minimum slab/wall thickness required for installation? Please refer to the UL1479 system listing for specific substrate requirements. Our technical data sheet includes complete installation parameters by substrate type.
Q: Can the FEG40 be used in drywall partitions? Yes. The FEG40 is tested for installation in gypsum wallboard (drywall) assemblies, in addition to concrete and masonry substrates.
Q: Does the FEG40 require any maintenance after installation? No. Once correctly installed, the FEG40 requires no periodic inspection or replacement under normal service conditions.
Q: What is the difference between UL1479 and ASTM E814? ASTM E814 is the test method; UL1479 is the certification standard that uses ASTM E814 as its testing protocol. UL1479 listing indicates the product has been independently tested and certified by UL (Underwriters Laboratories).
Q: Can FireEG provide custom sizes outside of the standard 1.5″–4″ range? Yes. We offer custom configurations for non-standard pipe diameters. Please contact us with your project specifications.
Q: Is the FEG40 available for projects requiring acoustic (sound) ratings? UL1479 testing includes an acoustic rating component (STC). Please refer to our UL listing documentation for specific STC values.
Request a Sample or Technical Data Sheet
[→ Intumescent Fire Strips – for fire door and gap sealing]
[→ Endless Fire Collar – flexible solution for pipes up to 160mm]
[→ Acrylic Intumescent Sealant FEG-1000E – complementary sealant system]