FA-CN-IIA, IIB3
In-Line Deflagration Flame Arrester concentric design, bi-directional
Caractéristiques
Fonction et description
Compact and Maintenance-Friendly Design
The PROTEGO® FA-CN In-Line Deflagration Flame Arrester 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 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 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. 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 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. (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 Operating temperature Temperature reached when the equipment is operating under design conditions. of up to +60°C / 140°F and an absolute operating pressure Pression de service 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.
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), 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 |
Dimensions in mm / inches
Material selection
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Cover | Steel | Stainless Steel |
| Gasket | PTFE | PTFE |
| Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | Stainless Steel | Stainless Steel |
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 |
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" | 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®
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”.
