Features

Versatile Application Options
various uses possible
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Fastest Disassembly and Assembly
of single FLAMEFILTER®
Pipe Thread Connection
Bi-Directional Flame Transmission
proof design
Provides Safety
Temperature Sensors Possible
use of temperature sensors for G 1½ and G 2 is possible
Spare Parts
cost-effective flame arrester / spare parts
Function and Description

Compact Design of the in-line deflagration flame arrester

The compact design of the PROTEGO® FA-G 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. makes it the state-of-the-art technology for installation in pipes with diameters of up to 2”. The devices are installed with minimal distance to the burner to prevent flashback Flashback Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the combustible mixture becomes less than the flame velocity, causing the flame to travel back to the point of mixture. into the fuel feed lines. 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 the location of the installed 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. 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 groups IIA and IIB3 (NEC groups D and C {MESG ≥ 0.65 mm}) and to (L/D)max ≤ 30 for explosion group IIC (NEC group B).

Main component - PROTEGO® flame arrester

The in-line deflagration flame arrester is symmetrical and offers bi-directional flame transmission protection. The device consists of two 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. parts (1) and a 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. or a FLAMEFILTER® (2) and spacers in the center. The number of FLAMEFILTER® discs and their gap size depend on the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid. The PROTEGO® FA-G series in-line deflagration flame arresters is available for explosion groups IIA, IIB3, and IIC (NEC groups D, C {MESG ≥ 0.65 mm} and B).

Many Individual Certifications

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. acc. to table 3. Devices with special approval for higher pressures and higher temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.

Dimensions

Dimensions in mm / inches, SW= width across flats

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 G ½" G ¾" G 1" G 1 ¼"G 1 ½" G 2"
a80 / 3.1580 / 3.15100 / 3.94100 / 3.94155 / 6.10155 / 6.10
b55 / 2.1755 / 2.1776 / 2.9976 / 2.99124 / 4.88124 / 4.88
c (IIA bis IIB3)100 / 3.94100 / 3.94110 / 4.33110 / 4.33170 / 6.69170 / 6.69
c (IIB und IIC)112 / 4.41112 / 4.41122 / 4.80122 / 4.80170 / 6.69170 / 6.69
d400 / 15.75400 / 15.75
SW32 / 1.2632 / 1.2650 / 1.9750 / 1.9775 / 2.9575 / 2.95

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C
< 0,50 mmIICB

Selection of max. operating pressure

Expl. GrDN  G ½" G ¾"  G 1"  G 1¼"  G 1½"  G 2'' 
IIAPmax1,4 / 20.31,4 / 20.31,4 / 20.31,4 / 20.31,5 / 21.71,5 / 21.7
IIB3Pmax1,2 / 17.41,2 / 17.41,2 / 17.41,2 / 17.41,2 / 17.41,2 / 17.4
IICPmax1,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.9

Specification of max. operating temperature

≤ 60°C / 140°FTmaximum allowable operating temperature in °C
-Designation

Type of connection

Pipe thread DIN ISO 228-1DIN

Material selection

DesignBC
HousingStainless SteelHastelloy
GasketPTFEPTFE
FLAMEFILTER®*Stainless SteelHastelloy
Applications

Floating-Roof Storage Tanks

Processing Facilities

Vapor Combustion Systems