FA-CN-IIC
In-Line Deflagration Flame Arresterfor hydrogen/air-mixtures, concentric design, bidirectional
Features
Spare Parts
cost-effective flame arrester / spare parts
Eccentric Design
eases installation close to floors and walls
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Bi-Directional Flame Transmission
proof design
Provides Safety
protects against deflagrations for all
explosion
Explosion
Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously.
groups IIA, IIB3 and IIC (NEC groups D, C and B)
Any Installation Position
Function and Description
Compact and Maintenance-Friendly Design
The PROTEGO® FA-CN
in-line deflagration flame arrester
In-line deflagration flame arrester
A deflagration flame arrester is designed to prevent the transmission of a deflagration. An in-line deflagration flame arrester is equipped with a pipe connection on both sides.
is a compact design utilizing an easy access cover for easy
maintenance
Maintenance
Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order.
. The special PROTEGO® FA-CN-IIC version was developed for hydrogen applications (group IIC vapors – NEC group B). The
device
Device
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.
is designed with relatively large gap widths – related to IIC – which causes minimum pressure loss and allows for permeation of small liquid droplets or particles.
Main component - PROTEGO® flame arrester
The
PROTEGO® flame arrester unit
PROTEGO® flame arrester unit
The PROTEGO® flame arrester unit is the main component of a flame arrester. It prevents flame propagation.
can be removed and cleaned in just a few simple steps having to disassemble the pipe. When installing the
deflagration
Deflagration
Explosion propagating at subsonic velocity (EN 1127-1:1997).
flame arrester, make sure that the distance between potential ignition sources and thelocation of the installed device does not exceed the L/D ratio (pipe length/ pipe diameter) for which the device was approved (see table 4). The deflagration flame arrester is symmetrical and offers bidirectional 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.
.
For Explosion group 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. The versions of PROTEGO® FA-CN-IICflame arrester protect against deflagrations of fuel/air mixtures of explosion group IIC (NEC B). FA-CN devices for substances of explosion groups IIA1, IIA, and IIB3 (NEC D and C (MESG ≥ 0.65 mm) 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.
Many Individual Certifications
EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product
Product
Includes equipment, protective systems, devices, components and combinations of these.
Data and Features
Dimensions
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
| DN | 40 / 1½“ | 50 / 2“ | 65 / 2½“ | 80 / 3“ | 100 / 4“ | 125 / 5“ | 150 / 6“ | 200 / 8" | 250 / 10" | 300 / 12" |
| a | 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 | 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 | 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 | 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
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| < 0,50 mm | IIC | B |
Special approvals upon request
Selection of max. operating pressure
| DN | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8'' | 250 / 10'' | 300 / 12'' |
| Pmax | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 |
Pmax = maximum allwowable operating pressure in bar / psi absolute, higher operating pressure upon request
Max. allowable L/D-ratio
| DN | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8'' | 250 / 10'' | 300 / 12'' |
| (L / D)max | 30 | 30 | 10 | 10 | 10 | 20 | 20 | 10 | 10 | 5 |
| Designation | - | - | X12 | X12 | X12 | X10 | X10 | X12 | X12 | X13 |
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:Basic in-line deflagration flame arresterFA-CN - –
In-line deflagration flame arrester with
integrated temperature sensor
Integrated temperature sensor
Temperature sensor integrated into the flame arrester, as specified by the manufacturer of the flame arrester, in order to provide a signal suitable to activate counter measures.
* as additional protection against short-time burning from one sideFA-CN - T
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)
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
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”.
Applications