FA-E
In-Line Deflagration Flame Arrester eccentric design, bidirectional
Caractéristiques
Fonction et description
Excentric Design
The PROTEGO® FA-E Series of In-Line Deflagration Flame Arresters is designed with an eccentric housing to automatically drain condensate build up in the housing. Due to its eccentric design, the device can be installed in pipelines that run close to floors or walls and low points to prevent the build-up of condensate. When installing the Deflagration Flame Arrester, make sure that the distance between potential ignition sources and the location of the installed device does not exceed the L/D ratio (pipe length/pipe diameter) for which the device was approved.
Main Component – PROTEGO® Flame Arrester Unit
According to EN ISO 16852, the installation limits are (L/D)max ≤ 50 for Deflagration Flame Arresters of explosion groups IIA and IIB3 (NEC groups D to C) and (L/D)max ≤ 30 for explosion group IIC (NEC group B). The devices are symmetrical and offer bi-directional flame transmission protection. The arrester essentially consists of two housing parts (1) and a PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit is modular and consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® casing. The number of FLAMEFILTER® and their gap size depends on the device‘s intended use.
For Explosion Group IIA to IIC
Specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, enables PROTEGO® to select the best Deflagration Flame Arrester for your application. The PROTEGO® FA-E Series of Deflagration Flame Arresters is available for substances from explosion groups IIA to IIC (NEC groups D to B).
Many Individual Certifications
The standard design can be used at an operating temperature of up to +60°C / 140°F and an absolute operating pressure up to 1.1 bar / 15.9 psi. Devices with special approval for higher pressures (see table 3) and higher temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Dimensions
To select the nominal size (DN), use the flow capacity charts on the following pages
| 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" |
| IIA | a | 304 / 11.97 | 304 / 11.97 | 310 / 12.20 | 314 / 12.36 | 360 / 14.17 | 364 / 14.33 | 370 / 14.57 | 434 / 17.09 | 440 / 17.32 | 450 / 17.72 | 480 / 18.90 | 500 / 19.69 |
| IIB3 | a | 304 / 11.97 | 304 / 11.97 | 310 / 12.20 | 314 / 12.36 | 360 / 14.17 | 364 / 14.33 | 370 / 14.57 | 434 / 17.09 | 440 / 17.32 | 450 / 17.72 | 480 / 18.90 | 500 / 19.69 |
| IIC | a | 304 / 11.97 | 304 / 11.97 | 321 / 12.64 | 325 / 12.80 | 371 / 14.61 | 375 / 10.83 | 381 / 15.00 | 445 / 17.52 | 451 / 17.76 | 461 / 18.15 | 491 / 19.33 | 511 / 20.12 |
| 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 / 17.32 | 440 / 17.32 | 460 / 18.11 | 520 / 20.47 | 520 / 20.47 | 540 / 21.26 | 570 / 22.44 | 600 / 23.62 |
Dimensions in mm / inches
Material selection for housing
| Design | B | C | D |
| Housing | Steel | Stainless Steel | Hastelloy |
| Gasket | PTFE | PTFE | PTFE |
| Flame arrester unit | A,C | C | D |
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 | C | D |
| FLAMEFILTER® cage | Steel | Stainless Steel | Hastelloy |
| FLAMEFILTER®* | Stainless Steel | Stainless Steel | Hastelloy |
| Spacers | Stainless Steel | Stainless Steel | Hastelloy |
*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.
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
| < 0,50 mm (> 0,50 mm) | IIC (IIB) | B |
Special approvals upon request
Selection of max. operating pressure
| Expl. Gr. | DN | 25 / 1" | 32 / ¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12" |
| IIA | Pmax | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.2 | 1,6 / 23.3 |
| IIB3 | Pmax | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 |
| IIC | Pmax | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,2 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 |
Pmax = maximum allwowable operating pressure in bar / psi (absolute), 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
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other connections upon request
Design Types and Specifications
There are three different designs:Additional special devices available upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)
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”.
