Protego BR

FA-E-IIA1

In-Line Deflagration Flame Arrester for biogas, sewage gas and landfill gas, eccentric design, bidirectional, endurance burning proof (under atmospheric conditions up to DN 200 / 8“)

Features

Eccentric Design
Prevents Condensate Build Up
Versatile Application Options
Various Uses Possible
Modular Design
Allows Replacement and Cleaning of Single FLAMEFILTER®
Fastest Disassembly and Assembly
of Single FLAMEFILTER®
Provides Safety
Protects Against Deflagrations for All Explosion Groups IIA, IIB3 and IIC (NEC Groups D, C and B)
Temperature Sensors Possible
Use of Temperature Sensors for G 1½ and G 2 Is Possible
Spare Parts
Cost-Effective Spare Parts
Function and Description

Excentric Design

The PROTEGO® FA-E-IIA1 Series of In-Line Deflagration Flame Arresters is designed with an eccentric housing to automatically drain condensate build up in the housing. The PROTEGO® FA-E-IIA1 In-Line Flame Arrester was specially developed for bio-, sewage- and landfill-gas applications. The application as an endurance burning proof in-line device under atmospheric conditions without extensive temperature monitoring is of advantage.

For Explosion Group IIA1

Due to its eccentric design and in contrast to conventional concentric Flame Arresters the device can be installed in pipelines that run close to floors or walls. 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. According to EN ISO 16852 the installation limits are (L/D)max ≤ 50 for Deflagration Flame Arresters for explosion group IIA1- methane (former designation Expl.gr. I).

Main Component – PROTEGO® Flame Arrester Unit

The Deflagration Flame Arrester is symmetric and offers bidirectional flame transmission protection. The arrester essentially consists of two housing parts (1) and the PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit is modular and consist of several FLAMEFILTER® (3) and spacers firmly held in a FLAMEFILTER® casing.

Many Individual Certifications

The PROTEGO® FA-E-IIA1 Flame Arrester protects against deflagrations and endurance burning (under atmospheric condition up to DN 200 / 8”) of explosion group IIA1 - methane (former designation Expl.gr. I). The PROTEGO® FA-E devices for substances of explosion groups IIA, IIB3 and IIC (NEC groups B, C, and D) are shown on separate pages. The standard design can be used up to an operating temperature of +60°C / 140°F and up to an absolute operating pressure of 1.1 bar / 15.9 psi. Numerous devices with special approvals can be obtained for higher temperatures and pressures. 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), please 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"200 / 8"250 / 10"300 / 12"
a304 / 11.97304 / 11.97310 / 12.20314 / 12.36360 / 14.17364 / 14.33370 / 14.57435 / 17.09440 / 17.32450 / 17.72480 / 18.90500 / 16.69
b29 / 1.1429 / 1.1429 / 1.1429 / 1.1438 / 1.4938 / 1.4939 / 1.5365 / 2.5665 / 2.5655 / 2.1758 / 2.2860 / 2.36
c185 / 7.28185 / 7.28210 / 8.27210 / 8.27250 / 9.84250 / 9.84275 / 10.83385 / 15.16385 / 15.16450 / 17.72500 / 19.69575 / 22.64
d400 / 15.75400 / 15.75410 / 16.14410 / 16.14440 / 16.14440 / 16.14460 / 18.11520 / 20.47520 / 20.47540 / 21.26570 / 22.44600 / 23.62

Dimensions in mm / inches

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)
≥ 1.14 mmIIA1 (I)*

* former designation Expl.gr. I

Special approvals upon request

Selection of max. operating pressure

Expl.Gr.DN25 / 1"32 / 1¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"300 / 12"
IIA1 (I)Pmax1,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.51,9 / 27.5

Pmax = Maximum allowable operating pressure in bar / psi absolut, 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 for housing

DesignBC
Housing Steel Stainless Steel
Gasket PTFE PTFE
Flame arrester unit A, B B

* for devices exposed to elevated temperatures above 150°C / 302°F (T150), gaskets made of PTFE.

The housing can also be delivered in carbon steel with an ECTFE coating. Special materials upon request.

Material combinations of flame arrester unit

Design AB
FLAMEFILTER® cageSteelStainless Steel
FLAMEFILTER®*Stainless SteelStainless Steel
SpacersStainless SteelStainless Steel

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

Special materials upon request.

Flange connection type

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

other connections 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”.