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PROTEGO®
Excellence in Safety and Environment

DR/ES-PTFE

In-Line Detonation Flame Arrester for stable detonations and deflagrations in right angle design with shock absorber, unidirectional

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Features

Reduced Number of FLAMEFILTER® Discs
Low Number of FLAMEFILTER® Discs Due to Shock Absorber Technology
Fastest Disassembly and Assembly
of Single FLAMEFILTER®
Modular Design
Allows Replacement and Cleaning of Single FLAMEFILTER®
Explosion Safety
Provides Protection Against Deflagration and Stable Detonation
Angle Bodied
Saves Pipe Elbows
Low Costs
Low Operating and Lifecycle Costs
Function and Description

High-Tech Coating of the Housing

The PROTEGO® DR/ES-PTFE Series In-Line Detonation Flame Arresteris distinguished by its unique resistance to adhesive and corrosive media. The use of fluoroplastics as a high-tech housing Corps A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. coating Revêtement Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. and as safety flame arrester Arrête-flammes Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. element is unique throughout the world. The 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. represents a further development of PROTEGO® Flame Arresters Flame Arresters A flame arrester, deflagration arrester, or flame trap is a device or form of construction that will allow free passage of a gas or gaseous mixture but will interrupt or prevent the passage of flame. DR/ES in a right angle design that have been used and proven for decades in industry. The device protects against deflagrations and stable detonations.

Main Component – PROTEGO® Flame Arrester Unit (PTFE)

Once a detonation Détonation Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). enters the Flame Arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber Amortisseur de choc A shock absorber is a device that reduces the kinetic energy of a detonation. (1) before the flame is extinguished in the narrow channel of the PTFE FLAMEFILTER® (3). The PROTEGO® Flame Arrester Unit (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® cage Cage d'éléments arrête-flammes The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set. (4). The gap size and number of FLAMEFILTER® discs are determined by the operating data parameters of the mixture flowing in the line (pressure, temperature).

For Explosion Group IIA

The detonation arrester Arrête-flammes antidétonation Flame arrester designed to prevent the transmission of a detonation. can be used for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. 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 and an absolute operating pressure Pression de service Operating pressure is the pressure existing at normal operating conditions within the system being protected. acc. to 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 the 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. (DN), please use the flow capacity charts on the following pages

DN40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"
a153 / 6.02155 / 6.10198 / 7.80200 / 7.87250 / 9.84332 / 13.07335 / 13.19
b183 / 7.20185 / 7.28223 / 8.78225 / 8.86290 / 11.42357 / 14.06360 / 14.17
c335 / 13.19335 / 13.19420 / 16.53420 / 16.53490 / 19.29590 / 23.23590 / 23.23
c1455 / 17.91455 / 17.91585 / 23.03585 / 23.03680 / 26.77835 / 32.87835 / 32.87
d210 / 8.27210 / 8.27275 / 10.83275 / 10.83325 / 12.80460 / 18.11460 / 18.11
e685 / 26.97685 / 26.97770 / 30.31770 / 30.31840 / 33.07940 / 37.01940 / 37.01

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

DN40 / 1 ½"50 / 2"65 / 2 ½"80 / 3"100 / 4"125 / 5"150 / 6"
Expl. Gr.IIAPmax1.1 / 15.91.1 / 15.91.2 / 17.41.2 / 17.41.1 / 15.91.1 / 15.91.1 / 15.9

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

Design A
HousingSteel with an ECTFE coating
Cover with shock absorberSteel 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

Design ABC
FLAMEFILTER® cagePTFE*HastelloyStainless Steel
FLAMEFILTER®*PTFE*PTFE*PTFE*
SpacerPEEK / ETFE / FEPPEEK / ETFE / FEPPEEK / ETFE / FEP

*electrically conductive

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

Si vous avez des questions, des commentaires ou des suggestions, notre équipe d'experts se fera un plaisir de vous aider.

Picture of Mrs. Auris-Nadine Hillen
Mrs. Auris-Nadine Hillen

CSR Department

+49 (0)5307 809 108