FA-CN-IIA, IIB3

In-Line Deflagration Flame Arresterconcentric design, bi-directional

Features

Eccentric Design
eases installation close to floors and walls
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Bi-Directional Flame Transmission
proof design
Spare Parts
cost-effective flame arrester / spare parts
Provides Safety
Extended Application Range
for elevated operating temperatures and pressures
Function and Description

Main component - PROTEGO® flame arrester

The deflagration flame arrester is symmetrical and offers bi-directional flame transmission protection. The device consists of the housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. (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 FLAMEFILTER® casing Enclosure for FLAMEFILTER® including insert rings. . 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 Operating temperature Temperature reached when the equipment is operating under design conditions. of up to +60°C / 140°F and an absolute operating pressure Operating pressure Operating pressure is the pressure existing at normal operating conditions within the system being protected. 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.

Dimensiones

To select the nominal size Nominal size 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), use the flow capacity charts on the following pages

DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3"100 / 4"125 / 5"150 / 6"200250300
a200 / 7.87200 / 7.87210 / 8.27215 / 8.46235 / 9.25240 / 9.45265 / 10.43305 / 12.01310 / 12.20300 / 11.81320 / 12.60350 / 13.78
b92 / 3.6292 / 3.62105 / 4.13105 / 4.13132 / 5.2132 / 5.2150 / 5.91197 / 7.75197 / 7.75220 / 8.66260 / 10.24295 / 11.61
c175 / 6.89175 / 6.89200 / 7.87200 / 7.87260 / 10.24260 / 10.24308 / 12.13415 / 16.34415 / 16.34446 / 17.56520 / 20.47600 / 23.62
d105 / 4.13105 / 4.13130 / 5.12130 / 5.12185 / 7.28185 / 7.28220 / 8.66310 / 12.20310 / 12.20355 / 13.98420 / 16.54490 / 19.29

Dimensiones en mm / pulgadas

Selección del grupo de explosión

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Special approvals upon request

Selección de la máxima presión de operación

Expl. Gr.DN25 / 1" 32 / ¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"300 / 12"n
IIAPmax1,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,5 / 21.81,5 / 21.81,5 / 21.81,3 / 18.91,3 / 18.91,3 / 18.93
IIB3Pmax1,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.23

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°FTmaximum allowable operating temperature in °C
-Designation

higher operating temperatures upon request

Tipo de bridas de conexión

EN 1092-1; Form B1
ASME B16.5 CL 150 R.F.

other connections upon request

Modelo y especificación

There are three different designs:
Basic in-line deflagration flame arresterFA-CN - –
In-line deflagration flame arrester with two integrated temperature sensors* for additional protection against short-time burning from both sidesFA-CN - TB

Additional special devices available upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)

Selección de materiales

DesignAB
HousingSteelStainless Steel
CoverSteelStainless Steel
GasketPTFEPTFE
Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. Stainless SteelStainless Steel

Special materials 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”.

Applications