FA-I-PTFE

In-Line Deflagration Flame Arrester concentric design, bidirectional

Features

Reduced Number of FLAMEFILTER® Discs
Low Number of FLAMEFILTER® Discs Due to Shock Absorber Technology
Low Costs
Low Operating and Lifecycle Costs
Modular Design
Allows Replacement and Cleaning of Single FLAMEFILTER®
Bi-Directional Flame Transmission
Proof Design
Temperature Sensors Possible
Use of Temperature Sensors for G 1½ and G 2 Is Possible
Easy Maintenance
Without Disassembling of the FLAMEFILTER®
Function and Description

Bidirectional Flame Transmission Protection

When installing the Deflagration Flame Arrester make sure that the distance between potential ignition sources and the location of the installed device Appareil 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. , the L/D ratio (pipe length/pipe diameter), does not exceed the value of 50. The Deflagration Flame Arrester is symmetrical and offers bidirectional flame transmission protection.

Main Component – PROTEGO® Flame Arrester Unit

The arrester essentially consists of two coated housing parts (1) 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. The number of PTFE-FLAMEFILTER® discs and their gap size depends on the arrester‘s conditions of use.

For Explosion Group IIA

The Deflagration Flame Arrester PROTEGO® FA-I-PTFE can be used for explosion group IIA (NEC group D). The standard design is approved at an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. up to +60°C / 140°F. The maximum allowable operating pressure Pression de service Operating pressure is the pressure existing at normal operating conditions within the system being protected. depends on nominal diameter (DN) and nominal size Diamètre nominal 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. (NG) and amounts to a maximum of 1.6 bar / 23.2 psi absolute (for DN 100 / 4” and DN 150 / 6” see table 3). EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data

Dimensions

To select series and nominal size (DN) - nominal width (NG) combination, please use the flow capacity chart on the following page

DN50 / 2"80 / 3"100 / 4"150 / 6"
NG150 / 6"150 / 6"200 / 8"300 / 12"
a287 / 11.30287 / 11.30342 / 13.46447 / 17.60
b380 / 14.96380 / 14.96468 / 18.43612 / 24.09
c430 / 16.93430 / 16.93480 / 18.90530 / 20.87

Dimensions in mm / inches

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0.90 mmIIAD

Special approvals upon request

Selection of max. operating pressure

DN50 / 2"80 / 3"100 / 4"150 / 6"
NG150 / 6"150 / 6"200 / 8"300 / 12"
Pmax1.6 / 23.21.6 / 23.31.2 / 17.41.2 / 17.4

Pmax = 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 for housing

Design A
HousingSteel with an ECTFE coating
GasketPTFE
Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. A, B, C

Special materials upon request

Material combinations of flame arrester unit

DesignABC
FLAMEFILTER® cageSteel with an ECTFE coatingHastelloyStainless Steel
Spider ringsSteel with an ECTFE coatingHastelloyStainless Steel
FLAMEFILTER®*PTFE*PTFE*PTFE*
SpacerPEEK / ETFE / FEPPEEK / ETFE / FEPPEEK / ETFE / FEP

* electrically conductive

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”.

Applications

Installations de transformation

Systèmes de combustion de vapeur

Stockage basse-pression

 Stockage d'alcool