FA-E-IIA1
In-Line Deflagration Flame Arrester for biogas, sewage gas and landfill gas, eccentric design, bidirectional, endurance burning proof (under atmospheric conditions up to DN 200 / 8“)

Features
Eccentric Design
Versatile Application Options
Modular Design
Fastest Disassembly and Assembly
Provides Safety
Temperature Sensors Possible
Spare Parts

Excentric Design

For Explosion Group IIA1

Main Component – PROTEGO® Flame Arrester Unit

Many Individual Certifications
Dimensions
To select the nominal size (DN), please use the flow capacity charts on the following pages
| DN | 25 / 1" | 32 / 1¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12" |
| a | 304 / 11.97 | 304 / 11.97 | 310 / 12.20 | 314 / 12.36 | 360 / 14.17 | 364 / 14.33 | 370 / 14.57 | 435 / 17.09 | 440 / 17.32 | 450 / 17.72 | 480 / 18.90 | 500 / 16.69 |
| b | 29 / 1.14 | 29 / 1.14 | 29 / 1.14 | 29 / 1.14 | 38 / 1.49 | 38 / 1.49 | 39 / 1.53 | 65 / 2.56 | 65 / 2.56 | 55 / 2.17 | 58 / 2.28 | 60 / 2.36 |
| c | 185 / 7.28 | 185 / 7.28 | 210 / 8.27 | 210 / 8.27 | 250 / 9.84 | 250 / 9.84 | 275 / 10.83 | 385 / 15.16 | 385 / 15.16 | 450 / 17.72 | 500 / 19.69 | 575 / 22.64 |
| d | 400 / 15.75 | 400 / 15.75 | 410 / 16.14 | 410 / 16.14 | 440 / 16.14 | 440 / 16.14 | 460 / 18.11 | 520 / 20.47 | 520 / 20.47 | 540 / 21.26 | 570 / 22.44 | 600 / 23.62 |
Dimensions in mm / inches
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) |
| ≥ 1.14 mm | IIA1 (I)* |
* former designation Expl.gr. I
Special approvals upon request
Selection of max. operating pressure
| Expl.Gr. | DN | 25 / 1" | 32 / 1¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12" |
| IIA1 (I) | Pmax | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 | 1,9 / 27.5 |
Pmax = Maximum allowable operating pressure in bar / psi absolut, higher operating pressure upon request
Specification of max. operating temperature
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
higher operating temperatures upon request
Material selection for housing
| Design | B | C | |
| Housing | Steel | Stainless Steel | |
| Gasket | PTFE | PTFE | |
| Flame arrester unit | A, B | B |
* for devices exposed to elevated temperatures above 150°C / 302°F (T150), gaskets made of PTFE.
The housing can also be delivered in carbon steel with an ECTFE coating. Special materials upon request.
Material combinations of flame arrester unit
| Design | A | B |
| FLAMEFILTER® cage | Steel | Stainless Steel |
| FLAMEFILTER®* | Stainless Steel | Stainless Steel |
| Spacers | Stainless Steel | Stainless Steel |
*the FLAMEFILTER® is also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used.
Special materials upon request.
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other connections upon request
Flow Capacity Chart

The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.

