Protego BR
PROTEGO®
Excellence in Safety and Environment

FA-E

In-Line Deflagration Flame Arrester eccentric design, bidirectional

Features

Eccentric Design
Prevents Condensate Build Up
Versatile Application Options
Various Uses Possible
Bi-Directional Flame Transmission
Proof Design
Modular Design
Allows Replacement and Cleaning of Single FLAMEFILTER®
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

Excentric Design

The PROTEGO® FA-E Series of In-Line Deflagration Flame Arresters is designed with an eccentric housing to automatically drain condensate build up in the housing. Due to its eccentric design, the device can be installed in pipelines that run close to floors or walls and low points to prevent the build-up of condensate. 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.

Main Component – PROTEGO® Flame Arrester Unit

According to EN ISO 16852, the installation limits are (L/D)max ≤ 50 for Deflagration Flame Arresters of explosion groups IIA and IIB3 (NEC groups D to C) and (L/D)max ≤ 30 for explosion group IIC (NEC group B). The devices are symmetrical and offer bi-directional flame transmission protection. The arrester essentially consists of two housing parts (1) and a 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® and their gap size depends on the device‘s intended use.

For Explosion Group 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. The PROTEGO® FA-E Series of Deflagration Flame Arresters is available for substances from explosion groups IIA to IIC (NEC groups D to B).

Many Individual Certifications

The standard design can be used at an operating temperature of up to +60°C / 140°F and an absolute operating pressure 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. 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

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"
IIAa304 / 11.97304 / 11.97310 / 12.20314 / 12.36360 / 14.17364 / 14.33370 / 14.57434 / 17.09440 / 17.32450 / 17.72480 / 18.90500 / 19.69
IIB3a304 / 11.97304 / 11.97310 / 12.20314 / 12.36360 / 14.17364 / 14.33370 / 14.57434 / 17.09440 / 17.32450 / 17.72480 / 18.90500 / 19.69
IICa304 / 11.97304 / 11.97321 / 12.64325 / 12.80371 / 14.61375 / 10.83381 / 15.00445 / 17.52451 / 17.76461 / 18.15491 / 19.33511 / 20.12
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 / 17.32440 / 17.32460 / 18.11520 / 20.47520 / 20.47540 / 21.26570 / 22.44600 / 23.62

Dimensions in mm / inches

Selection of explosion group

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

Special approvals upon request

Selection of max. operating pressure

Expl. Gr.DN25 / 1"32 / ¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"300 / 12"
IIAPmax1,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.21,6 / 23.3
IIB3Pmax1,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.31,6 / 23.3
IICPmax1,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,2 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.9

Pmax = maximum allwowable 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 for housing

Design BCD
HousingSteelStainless SteelHastelloy
GasketPTFEPTFEPTFE
Flame arrester unitA,CCD

The housing can also be delivered in carbon steel with an ECTFE coating.

Special materials upon request

Material combinations of flame arrester unit

DesignACD
FLAMEFILTER® cageSteelStainless SteelHastelloy
FLAMEFILTER®*Stainless SteelStainless SteelHastelloy
SpacersStainless SteelStainless SteelHastelloy

*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”.