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“)
Caractéristiques
Fonction et description
Excentric Design
The PROTEGO® FA-E-IIA1 Series of In-Line Deflagration Flame Arresters Arrête-flammes antidéflagration Flame arrester designed to prevent the transmission of a deflagration. It can be an end-of-line flame arrester or an in-line flame arrester. is designed with an eccentric housing Corps A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. to automatically drain condensate build up in the housing. The PROTEGO® FA-E-IIA1 In-Line Flame Arrester was specially developed for bio-, sewage- and landfill-gas applications. The application as an endurance burning Endurance burning Stabilized burning for an unlimited time. proof in-line device Appareil A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. under atmospheric conditions without extensive temperature monitoring is of advantage.
For Explosion Group IIA1
Due to its eccentric design and in contrast to conventional concentric Flame Arresters the device can be installed in pipelines that run close to floors or walls. 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. According to EN ISO 16852 the installation limits are (L/D)max ≤ 50 for Deflagration Flame Arresters for explosion group IIA1- methane (former designation Expl.gr. I).
Main Component – PROTEGO® Flame Arrester Unit
The Deflagration Flame Arrester is symmetric and offers bidirectional flame transmission protection. The arrester essentially consists of two housing parts (1) and the PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit is modular and consist of several FLAMEFILTER® (3) and spacers firmly held in a FLAMEFILTER® casing.
Many Individual Certifications
The PROTEGO® FA-E-IIA1 Flame Arrester protects against deflagrations and endurance burning (under atmospheric condition up to DN 200 / 8”) of explosion group IIA1 - methane (former designation Expl.gr. I). The PROTEGO® FA-E devices for substances of explosion groups IIA, IIB3 and IIC (NEC groups B, C, and D) are shown on separate pages. The standard design can be used up to an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of +60°C / 140°F and up to an absolute operating pressure Pression de service Operating pressure is the pressure existing at normal operating conditions within the system being protected. of 1.1 bar / 15.9 psi. Numerous devices with special approvals can be obtained for higher temperatures and pressures. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Dimensions
To select the nominal size Diamètre nominal The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (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
Material selection for housing
| Design | B | C | |
| Housing | Steel | Stainless Steel | |
| Gasket | PTFE | PTFE | |
| Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | 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 Revêtement Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. . 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.
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
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”.
