DR/ES-PTFE
In-Line Detonation Flame Arresterfor stable detonations and deflagrations in right angle design with shock absorber, unidirectional
Features
Reduced Number of FLAMEFILTER® Discs
low number of FLAMEFILTER® discs due to
shock absorber
Shock absorber
A shock absorber is a device that reduces the kinetic energy of a detonation.
technology
Fastest Disassembly and Assembly
of single FLAMEFILTER®
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Explosion Safety
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 arrester
In-line detonation flame arrester
A detonation flame arrester is designed to prevent the transmission of a detonation.
is distinguished by its unique resistance to adhesive and corrosive media. The use of fluoroplastics as a high-tech
housing
Housing
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
Coating
Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece.
and as safety flame arrester element is unique throughout the world. The
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.
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 (PTFE)
Once a
detonation
Detonation
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 (1) before the flame is extinguished in the narrow channel of the PTFE FLAMEFILTER® (3).
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) consists of several FLAMEFILTER® discs and spacers firmly held in the
FLAMEFILTER® cage
FLAMEFILTER® cage
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
Detonation flame arrester
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
Operating pressure
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
Product
Includes equipment, protective systems, devices, components and combinations of these.
Data and Features
Tabela de dimensões
Para selecionar o diâmetro nominal (DN), utilize os diagramas de vazão nas páginas seguintes
| DN | 40 / 1 ½" | 50 / 2" | 65 / 2 ½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" |
| a | 153 | 155 | 198 | 200 | 250 | 332 | 335 |
| b | 183 | 185 | 223 | 225 | 290 | 357 | 360 |
| c | 335 | 335 | 420 | 420 | 490 | 590 | 590 |
| c1 | 455 | 455 | 585 | 585 | 680 | 835 | 835 |
| d | 210 | 210 | 275 | 275 | 325 | 460 | 460 |
| e | 685 | 685 | 770 | 770 | 840 | 940 | 940 |
Dimensões em mm
Seleção do grupo de explosão
| MESG | Gr. expl. (IEC / CEN) | Grupo gás (NEC) |
| > 0,90 mm | IIA | D |
Aprovações especiais sob solicitação
Seleção da pressão máx. de trabalho
| DN | 40 / 1 ½" | 50 / 2" | 65 / 2 ½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | ||
| Expl. Gr. | IIA | Pmax | 1,1 | 1,1 | 1,2 | 1,2 | 1,1 | 1,1 | 1,1 |
Pmáx. = pressão de trabalho máxima admissível em bar absoluta, pressão de trabalho mais elevada sob solicitação
Indicação da temperatura máx. de trabalho
| ≤ 60°C / 140°F | Ttemperatura máxima de trabalho admissível em °C |
| - | Designation |
temperaturas de trabalho mais elevadas, sob solicitação
Tipo de conexão flangeada
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Outras conexões sob solicitação
Versão e especificação
There are two different designs available:Corta-chamas à prova de detonação em linha em Versão básicaDR/ES - PTFE –
Corta-chamas à prova de detonação em linha com sensor de temperatura* integrado como proteção adicional contra combustão de curta duraçãoDR/ES - PTFE - T
*Termoresistência para grupo de equipamentos II, categoria (1) 2 (cat. GII (1) 2)
Seleção do material do corpo
| Versão | A |
| Corpo | Aço com revestimento em ECTFE |
| Tampa com absorvedor de choque | Aço com revestimento em ECTFE |
| Vedação | PTFE |
| Conjunto abafador de chamas | A, B, C |
Materiais especiais sob solicitação
Combinações de material do conjunto abafador de chamas
| Versão | A | B | C | |
| Armação do jogo de FLAMEFILTER® | PTFE* | Hastelloy | Aço inoxidável | |
| FLAMEFILTER®* | PTFE* | PTFE* | PTFE* | |
| Espaçadores | PEEK / ETFE / FEP | PEEK / ETFE / FEP | PEEK / ETFE / FEP |
*electrically conductive
Diagrama de vazão
Este diagrama de vazão foi determinado em uma bancada de medição de vazão calibrada e certificada pela TÜV. A vazão V em m³/h se refere ao estado técnico padrão de ar, conforme ISO 6358 (20°C, 1bar). Para conversão em outras densidades e temperaturas, veja o cap. 1: Bases técnicas.
Applications