FA-I-PTFE

In-Line Deflagration Flame Arresterconcentric design, bidirectional

Features

Reduced Number of FLAMEFILTER® Discs
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 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. , 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

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

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

Flange connection type

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

other connections upon request

Design Types and Specifications

There are three different designs:

Additional special devices available upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)

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*
Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se PEEK / ETFE / FEPPEEK / ETFE / FEPPEEK / ETFE / FEP

* electrically conductive

Special materials 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