Protego BR

FA-G-IIA1-P2.2

In-Line Deflagration Flame Arrester for biogas, sewage gas and landfi ll gas, concentric design, bidirectional, endurance burning proof (under atmospheric conditions)

Features

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
Protects Against Deflagrations for All Explosion Groups IIA, IIB3 and IIC (NEC Groups D, C and B)
Spare Parts
Cost-Effective Spare Parts
Function and Description

Protection of Fuel Supply Lines

The PROTEGO® FA-G-IIA1-P2.2 In-Line Deflagration Flame Arrester was specially developed for bio-, sewage- and landfill-gas applications. The compact design of the PROTEGO® FA-G makes it the state of the art technology for installation in pipes with diameters of ½” up to 2”. The devices are installed with minimal distance to the burner to prevent flashback in to the fuel feed lines. 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 approved. As per EN ISO 16852 the L/D ratio is limited to (L/D) max ≤ 50 for Deflagration Flame Arresters of explosion group IIA1.

For Explosion Group IIA1 - Methan

The In-Line Deflagration Flame Arresters is symmetrical and offers bidirectional flame transmission protection. The device consists of two housing parts (1) and two FLAMEFILTER® (2) in the center. The PROTEGO® FA-G-IIA1-P2.2 Flame Arrester protects against deflagrations and endurance burning (under atmospheric condition) and short time burning for 1 min. for the maximum operating conditions of explosion group IIA1 - Methane.

Many Individual Certifications

PROTEGO® FA-G devices for substances of explosion groups IIA, IIB3 and IIC (NEC groups D, C, and B) are shown on separate pages. The standard design can be used up to an operating temperature of +60°C / 140°F and an absolute operating pressure up to 2.2 bar / 31.9 psi. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data

Dimensions

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

DNG ½G ¾G 1G 1 ¼G 1 ½G 2
a 80/3.15 80/3.15 100/3.94 100/3.94 155/6.10 155/6.10
b 55/2.16 55/2.16 76/2.99 76/2.99 124/4.88 124/4.88
c 100/3.94 100/3.94 110/4.33 110/4.33 170/6.69 170/6.69
d -— 400/15.75 400/15.75
SW 32/1.26 32/1.26 50/1.97 50/1.97 75/2.95 75/2.95

Dimensions in mm / inches, SW= width across flats

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)
≥ 1,14 mmIIA1

Special approvals upon request

Selection of max. operating pressure

Expl. GrDNG ½G ¾G 1G 1 ¼G 1 ½G 2
IIA1 Pmax 2,2/31.9 2,2/31.9 2,2/31.9 2,2/31.9 2,2/31.9 2,2/31.9

Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request

Specification of max. operating temperature

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

higher operating temperatures upon request

Material selection

DesignBC
HousingStainless SteelHastelloy
GasketPTFEPTFE
FLAMEFILTER®*Stainless SteelHastelloy

* the FLAMEFILTER® is also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing materials are used.

Special materials upon request

Type of connection

Pipe thread DIN ISO 228-1DIN

other types of thread 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”.