FA-CN-IIA, IIB3
In-Line Deflagration Flame Arrester concentric design, bi-directional
Features
Diseño compacto
Facilita la instalación cerca de suelos y paredes
Diseño modular
Permite la sustitución y limpieza de los discos de filtro FLAMEFILTER® de forma individual
Transmisión bidireccional de la llama
Diseño de pruebas
Piezas de recambio
Piezas de recambio eficientes en costes
Proporciona seguridad
Protege frente a deflagraciones para todos los grupos de explosión IIA, IIB3 e IIC (grupos NEC D, C y B)
Amplio rango de aplicaciones
Para temperaturas y presiones de operación elevadas
Function and Description
Compact and Maintenance-Friendly Design
The PROTEGO® FA-CN In-Line Deflagration Flame Arrester is a compact design utilizing an easy access cover for easy maintenance. The PROTEGO® Flame Arrester Unit can easily be removed and cleaned in just a few simple steps without having to disassemble the pipe. 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 tested. According to EN ISO 16852, this device is approved for a (L/D)max ratio of 50.
Main Component – PROTEGO® Flame Arrester Unit
The Deflagration Flame Arrester is symmetrical and offers bi-directional flame transmission protection. The device consists of the housing (1) with an easy access cover (3) and the 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® discs and their gap size depend on the device’s intended use.
For Explosion Groups 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. This version of PROTEG® FA-CN-IIA and IIB3 Flame Arrester protects against deflagrations of fuel/air mixtures of explosion groups IIA and IIB 3 (NEC D and C {MESG ≥0.65 mm}). PROTEG® FA-CN devices for substances of explosion groups IIA1 and IIC (NEC group B) are shown on separate pages.
The standard design can be used with 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.
Many Individual Certifications
EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data
Dimensiones
To select the nominal size (DN), 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 | 250 | 300 |
| a | 200 / 7.87 | 200 / 7.87 | 210 / 8.27 | 215 / 8.46 | 235 / 9.25 | 240 / 9.45 | 265 / 10.43 | 305 / 12.01 | 310 / 12.20 | 300 / 11.81 | 320 / 12.60 | 350 / 13.78 |
| b | 92 / 3.62 | 92 / 3.62 | 105 / 4.13 | 105 / 4.13 | 132 / 5.2 | 132 / 5.2 | 150 / 5.91 | 197 / 7.75 | 197 / 7.75 | 220 / 8.66 | 260 / 10.24 | 295 / 11.61 |
| c | 175 / 6.89 | 175 / 6.89 | 200 / 7.87 | 200 / 7.87 | 260 / 10.24 | 260 / 10.24 | 308 / 12.13 | 415 / 16.34 | 415 / 16.34 | 446 / 17.56 | 520 / 20.47 | 600 / 23.62 |
| d | 105 / 4.13 | 105 / 4.13 | 130 / 5.12 | 130 / 5.12 | 185 / 7.28 | 185 / 7.28 | 220 / 8.66 | 310 / 12.20 | 310 / 12.20 | 355 / 13.98 | 420 / 16.54 | 490 / 19.29 |
Dimensiones en mm / pulgadas
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
Special approvals upon request
Selección de la máxima presión de operación
| 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" | n |
| 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 | 1,5 / 21.8 | 1,5 / 21.8 | 1,5 / 21.8 | 1,3 / 18.9 | 1,3 / 18.9 | 1,3 / 18.9 | 3 |
| IIB3 | 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 / 23.2 | 3 |
P = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request
n = number of FLAMEFILTER®
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
higher operating temperatures upon request
Selección de materiales
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Cover | Steel | Stainless Steel |
| Gasket | PTFE | PTFE |
| Flame arrester unit | Stainless Steel | Stainless Steel |
Special materials upon request
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other connections upon request
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”.
