Características
Función y descripción
In-Line Detonation Flame Arresters with Shock Wave Guide Tube Effect
The In-Line Detonation Flame Arresters Type PROTEGO® DA-SB are the newest generation of Flame Arresters. Based on flow and explosion dynamic calculations as well as decades of field tests, a product line was developed that offers minimum 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 Arrête-flammes antidétonation Flame arrester designed to prevent the transmission of a detonation. without a classic shock absorber Amortisseur de choc 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 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. parts with an integrated shock tube (1) and the PROTEGO® Flame Arrester Unit (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. 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 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 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 Pression de service 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.
Dimensiones
Para seleccionar la serie y tamaño nominal (DN) – la combinación del ancho nominal (NG), rogamos utilicen el diagrama de flujo volumétrico indicado a continuación
| 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 |
Dimensiones en mm / pulgadas
Selección de materiales para la vivienda
| 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 |
El cuerpo también está disponible en acero con recubrimiento ECTFE.
Materiales especiales bajo demanda
Combinación de materiales para la unidad apagallamas
| Modelo | A | B | C | D |
| FLAMEFILTER® Jaula | Acero | Acero inox | Acero inox | Hastelloy |
| FLAMEFILTER®* | Acero inox | Acero inox | Hastelloy | Hastelloy |
| Espaciador | Acero inox | Acero inox | Hastelloy | Hastelloy |
*Special materials upon request
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| < 0,50 mm | IIC | B |
Homologaciones especiales bajo petición
Selección de la máxima presión de operación
| 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 |
Pmax = máxima presión de operación permitida en bar / psi absoluto, presiones de operación más altas bajo demanda
in-between size up to Pmax upon request
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | ≤ 180°C / 356°F | ≤ 200°C / 392°F | Tmaximum allowable operating temperature in °C |
| - | X2 | X3 | Designation |
Temperaturas de operación más altas bajo demanda
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Otros tipos bajo petición
Modelo y especificación
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 flujo volumétrico
Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.
