DR/ES-PTFE
In-Line Detonation Flame Arrester for stable detonations and deflagrations in right angle design with shock absorber, unidirectional
Características
Função e descrição
High-Tech Coating of the Housing
The PROTEGO® DR/ES-PTFE Series In-Line Detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave. Flame Arresteris 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 Flame arrester 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 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 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 enters the Flame Arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber Shock absorber 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 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 Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric 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.
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 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
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:*Termoresistência para grupo de equipamentos II, categoria (1) 2 (cat. GII (1) 2)
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.
