Características
Função e descrição
In-Line Detonation Flame Arresters with Shock Wave Guide Tube Effect
The In-Line Detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave. Flame Arresters 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. Type PROTEGO® DA-SB are the newest generation of Flame Arresters. Based on flow and explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. dynamic calculations as well as decades of field tests, a product Product Includes equipment, protective systems, devices, components and combinations of these. line was developed that offers minimum pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. losses with maximum safety. The Flame Arrester uses the Shock Wave Guide Tube Effect (SWGTE) to separate the flame front and shock wave. The result is an in-line detonation arrester Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. without a classic shock absorber Shock absorber A shock absorber is a device that reduces the kinetic energy of a detonation. , which minimizes the use of FLAMEFILTER® discs.
Main Component – PROTEGO® Flame Arrester Unit
The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable detonations. The arrester essentially consists of two 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. parts with an integrated shock tube (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® cage The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set. . The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s intended use.
Many Individual Certifications
By specifying the operating conditions, such as the temperature, pressure, explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group, and the composition of the fluid, the optimum detonation arrester can be selected from a series of approved devices. The PROTEGO® DA-SB Flame Arresters are available for all explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. groups. The standard design can be used with an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of 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. up to bar / 15.9 psi. Numerous devices with special approval for higher pressures (see table 3) and higher temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Tabela de dimensões
Para selecionar a combinação dos tamanhos nominais/diâmetros nominais (NG/DN), utilize os diagramas de vazão nas páginas seguintes
outras combinações com tamanhos nominais/diâmetros nominais (NG/DN) com capacidade de fluxo melhorada sob solicitação
| NG | 200 / 8" | 300 / 12" | |
| DN | ≤100 / 4" | ≤150 / 6" | |
| a | 340 / 13.39 | 445 / 17.52 | |
| b | IIC-P1,2-X2 | - | 640 / 25.20 |
| IIC-P1,2-X3 | 500 / 19.69 | - | |
| IIC-P1,3 | - | 640 / 25.20 | |
| c | 415 / 16.34 | 570 / 22.44 |
Dimensões em mm
Seleção do material do corpo
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Heating jacket (DAZ-S-(T)-H-...) | Steel | Stainless Steel |
| Gasket | PTFE | PTFE |
| Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | A, B | B |
O corpo também pode ser fornecido em aço, com revestimento em ECTFE.
Materiais especiais sob solicitação
Combinações de material do conjunto abafador de chamas
| Versão | A | B | C | D |
| Armação do jogo de FLAMEFILTER® | Aço | Aço inoxidável | Aço inoxidável | Hastelloy |
| FLAMEFILTER®* | Aço inoxidável | Aço inoxidável | Aço inoxidável | Hastelloy |
| Espaçadores | Aço inoxidável | Aço inoxidável | Aço inoxidável | Hastelloy |
*Special materials upon request
Seleção do grupo de explosão
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| < 0,50 mm | IIC | B |
Aprovações especiais sob solicitação
Seleção da pressão máx. de trabalho
| Marking | NG | 200 / 8" | 300 / 12" |
| DN | ≤100 / 4"' | ≤150 / 6" | |
| IIC-P1,2-X3 | Pmax | - | 1,2 / 17.4 |
| IIC-P1,2-X2 | Pmax | 1,2 / 17.4 | - |
| IIC-P1,3 | Pmax | - | 1,3 / 18.9 |
Pmáx. = pressão de trabalho máxima admissível em bar absoluta, pressão de trabalho mais elevada sob solicitação
in-between size up to Pmax upon request
Indicação da temperatura máx. de trabalho
| ≤ 60°C / 140°F | ≤ 180°C / 356°F | ≤ 200°C / 392°F | Tmaximum allowable operating temperature in °C |
| - | X2 | X3 | 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 three different designs available:Additional special arresters upon request
*Resistance thermometer (Ex i II 1/2 G Ex ia IIC T1…T6 Ga/Gb)
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.
