FA-G-IIA1-P2.2
In-Line Deflagration Flame Arrester for biogas, sewage gas and landfi ll gas, concentric design, bidirectional, endurance burning proof (under atmospheric conditions)
- state of the art design for bio-, sewage- and landfill gas applications
- modular design
- the individual FLAMEFILTER® can be quickly removed and installed
- threaded connection for direct mounting into pipeline
- bidirectional flame transmission proof design
- provides protection against deflagrations and endurance burning under atmospheric conditions for explosion group IIA1- methane
- cost efficient spare parts
Función y Descripción
The PROTEGO® FA-G-IIA1-P2.2 in-line deflagration flame arrester was specially developed for bio-, sewage- and landfill-gas applications. The compact design of the PROTEGO® FA-G makes it the state of the art technology for installation in pipes with diameters of ½” up to 2”. The devices are installed with minimal distance to the burner to prevent flashback in to the fuel feed lines. 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. As per EN ISO 16852 the L/D ratio is limited to (L/D) max ≤ 50 for deflagration flame arresters of explosion group IIA1.
The in-line deflagration flame arrester is symmetrical and offers bidirectional flame transmission protection. The device consists of two housing parts (1) and two FLAMEFILTER® (2) in the center.
The PROTEGO® FA-G-IIA1-P2.2 flame arrester protects against deflagrations and endurance burning (under atmospheric condition) and short time burning for 1 min. for the maximum operating conditions of explosion group IIA1 - methane.
PROTEGO® FA-G devices for substances of explosion groups IIA, IIB3 and IIC (NEC groups D, C, and B) are shown on separate pages.
The standard design can be used up to an operating temperature of +60°C / 140°F and an absolute operating pressure up to 2.2 bar / 31.9 psi.
Type-approved in accordance with the current ATEX Directive and EN ISO 16852 as well as other international standards.
Dimensiones
To select the nominal size (DN), use the flow capacity charts on the following pages
| DN | G ½ | G ¾ | G 1 | G 1 ¼ | G 1 ½ | G 2 |
| a | 80/3.15 | 80/3.15 | 100/3.94 | 100/3.94 | 155/6.10 | 155/6.10 |
| b | 55/2.16 | 55/2.16 | 76/2.99 | 76/2.99 | 124/4.88 | 124/4.88 |
| c | 100/3.94 | 100/3.94 | 110/4.33 | 110/4.33 | 170/6.69 | 170/6.69 |
| d | — | — | -— | — | 400/15.75 | 400/15.75 |
| SW | 32/1.26 | 32/1.26 | 50/1.97 | 50/1.97 | 75/2.95 | 75/2.95 |
Selección de materiales
| Design | B | C |
| Housing | Stainless Steel | Hastelloy |
| Gasket | PTFE | PTFE |
| FLAMEFILTER®* | Stainless Steel | Hastelloy |
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) |
| ≥ 1,14 mm | IIA1 |
Selección de la máxima presión de operación
| Expl. Gr | DN | G ½ | G ¾ | G 1 | G 1 ¼ | G 1 ½ | G 2 |
| IIA1 | Pmax | 2,2/31.9 | 2,2/31.9 | 2,2/31.9 | 2,2/31.9 | 2,2/31.9 | 2,2/31.9 |
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
Tipo de conexión
| Pipe thread DIN ISO 228-1 | DIN |
Modelo y especificación
There are three different designs:
Basic in-line deflagration flame arrester (G ½'' to 2'') | FA-G - – |
In-line deflagration flame arrester with integrated temperature sensor* for additional protection against short-time burning from one side (G 1½'' to 2'') | FA-G - T |
In-line deflagration flame arrester with two integrated temperature sensors* for additional protection against short-time burning from both sides (G 1½'' to 2'') | FA-G - TB |
Additional special devices available upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)
Diagrama de flujo volumétrico
Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.
