Vent-Line / In-Line Deflagration Flame Arresters
Vent-Line / In-Line Deflagration Flame Arresters
Chemoil Advance Technology supplies Vent Line In-Line Deflagration Flame Arresters from recognized manufacturers for flame propagation protection in vent lines and process piping carrying flammable gases or vapors. These devices are installed in-line within a vent or vapor pipeline and are designed to help prevent the transmission of a deflagration flame front through the protected piping system under specified operating conditions.
The flame arrester uses a specially engineered flame-arresting element to absorb heat from the flame and reduce the combustion energy as the flame passes through the element. This heat transfer helps interrupt flame propagation and provides a protective barrier between connected sections of the vent or vapor system.

LCA
Gas Groups: D | IIA & IIA1

LCB Series
Gas Groups: C | IIB1, IIB2 & IIB3

LEA Series
Gas Groups: D | IIA & IIA1

LEB Series
Gas Groups: C | IIB1, IIB2 & IIB3

4950
Gas Groups: D | IIA

30000
Gas Groups: D | IIA

45000E / 46000E
Gas Groups:
45000E – IIA | D
46000E – IIA, IIB3 | D, C
Key Features
- ✔️ Designed for In-Line & Vent-Line Deflagration Protection
- ✔️ Prevents Flame Propagation Through Process Pipelines
- ✔️ High-Efficiency Stainless Steel Flame Element
- ✔️ Low Pressure Drop with High Flow Capacity
- ✔️ Heavy-Duty Corrosion Resistant Construction
- ✔️ Suitable for Flammable Gas & Vapor Service
- ✔️ Easy Inspection, Cleaning & Maintenance
- ✔️ Complies with International Explosion Protection Standards
Technical Specifications
| Parameter | Details |
|---|---|
| Sizes | 6” (DN 150) through 12” (DN 300) |
| Flange Connections | Mates with ANSI and DIN PN 16 |
| Materials | Available in Aluminum, Steel and Stainless Steel |
| Gas Groups | NEC Group D | IEC Explosion Group IIA |
