DR/ES-V
In-Line Detonation Flame Arrester with integrated pressure relief valve, for stable detonations and deflagrations in right angle design with shock absorber, unidirectional
Features
Combinación en un único dispositivo
Combinación de un apagallamas a prueba de detonaciones y válvula en un mismo dispositivo
Uso óptimo como válvula de rebose
en las líneas de venteo y suministro de gas
Número reducido de discos FLAMEFILTER®
Reducido número de discos FLAMMENFILTER® gracias a la tecnología del amortiguador de choque
Montaje y desmontaje más rápido
de un único disco de filtro FLAMEFILTER®
Seguridad frente a explosiones
Proporciona protección contra deflagraciones y detonaciones estables
Válvula de retención
Facilita el arranque de la bomba
Amplio rango de aplicaciones
Para temperaturas y presiones de operación elevadas
Piezas de recambio
Piezas de recambio eficientes en costes
Function and Description
Protects Against Deflagration and Stable Detonation
PROTEGO® DR/ES-V Series uniquely combines the function of an In-Line Detonation Flame Arrester with the function of a pressure relief valve in one device. The device protects against deflagration and stable detonation. The weight-loaded pallet type valve (5) integrated in the shock absorber (1) of the In-Line Detonation Flame Arrester is designed as a pressure relief valve. The set pressure of the valve is adjusted in the factory and can range from 2 to 35 mbar (0.8 to 14 inch W.C.). After the pressure increases 40% from its set pressure, the valve completely opens to yield the maximum volumetric flow.
In-Line Detonation Flame Arrester for Vent Headers
If installed in vent headers connected to storage tanks, the valve pallet works as a check valve. This means that the product cannot flow back from the suction line into the tank. Although several functions are integrated in a single housing, the device is extremely easy to service, which is primarily due to the right-angle design. Once a detonation enters the Flame Arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber, before the flame is extinguished in the narrow gaps of the FLAMEFILTER® (3). The flame suppression is guaranteed, regardless of the valve pallet position.
For Explosion Groups IIA to IIB3
The PROTEGO® Flame Arrester Unit (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® casing (4). The gap size and number of FLAMEFILTER® discs depend on the operating conditions of the flowing mixture (explosion group, pressure, temperature). This device is available for explosion groups from IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).
The standard design is approved for an operating temperature of up to +60°C / 140°F and absolute operating pressure up to 1.2 bar / 17.4 psi. Devices with special approval for higher pressures and temperatures are available upon request.
EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data
Dimensiones
To select the nominal size (DN), please use the flow capacity charts on the following pages
| DN | 25 / 1" | 32 / 1¼“ | 40 / 1½“ | 50 / 2“ | 65 / 2½“ | 80 / 3“ | 100 / 4“ | 125 / 5“ | 150 / 6" | 200 / 8" |
| a | 125 / 4.92 | 125 / 4.92 | 153 / 6.02 | 155 / 6.10 | 198 / 7.80 | 200 / 7.87 | 250 / 9.84 | 332 / 13.07 | 335 / 13.19 | 425 / 16.73 |
| b | 140 / 5.51 | 140 / 5.51 | 183 / 7.20 | 185 / 7.28 | 223 / 8.78 | 225 / 8.86 | 290 / 11.42 | 357 / 14.06 | 360 / 14.17 | 505 / 19.88 |
| c | 237 / 9.33 | 237 / 9.33 | 305 / 12.01 | 305 / 12.01 | 395 / 15.55 | 395 / 15.55 | 460 / 18.11 | 575 / 22.64 | 575 / 22.64 | 863 / 33.98 |
| c1 | 345 / 13.58 | 345 / 13.58 | 410 / 16.14 | 410 / 16.14 | 530 / 20.87 | 530 / 20.87 | 615 / 24.21 | 790 / 31.10 | 790 / 31.10 | 1295 / 50.98 |
| d | 149 / 5.87 | 149 / 5.87 | 210 / 8.27 | 210 / 8.27 | 275 / 10.83 | 275 / 10.83 | 325 / 12.80 | 460 / 18.11 | 460 / 18.11 | 620 / 24.41 |
Dimensiones en mm / pulgadas
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
Special approvals upon request
Selección de la máxima presión de operación
| Expl. Gr. | DN | 25 / 1" | 32 / 1¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8" |
| IIA | Pmax | 4,0 / 58.0 | 4,0 / 58.0 | 4,0 / 58.0 | 4,0 / 58.0 | 2,9 / 42.1 | 2,9 / 42.1 | 2,0 / 29.0 | 2,0 / 29.0 | 2,0 / 29.0 | 1,2 / 17.4 |
| IIB3 | Pmax | 3,0 / 43.5 | 3,0 / 43.5 | 2,0 / 29.0 | 2,0 / 29.0 | 2,0 / 29.0 | 2,0 / 29.0 | 1,5 / 21.7 | 1,4 / 20.3 | 1,4 / 20.3 | 1,1 / 15.9 |
Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
higher operating temperatures upon request
Selección de materiales para la vivienda
| Design | B | C | D |
| Design | Steel | Stainless Steel | Hastelloy |
| Heating jacket (DR / ES-V-H-...) | Steel | Stainless Steel | Stainless Steel |
| Cover with shock absorber | Steel | Stainless Steel | Hastelloy |
| Gaskets | PTFE | PTFE | PTFE |
| Valve seat | Stainless Steel | Stainless Steel | Stainless Steel |
| Flame arrester unit | A | C, D | E |
The housing and the cover with shock absorber can also be delivered in steel with an ECTFE coating.
Special materials upon request
Combinación de materiales para la unidad apagallamas
| Design | A | C | D | E |
| FLAMEFILTER® cage | Steel | Stainless Steel | Stainless Steel | Hastelloy |
| FLAMEFILTER®* | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
| Spacer | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
* the FLAMEFILTER® are also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used.
Special materials upon request
Selection of valve pallet
| Design | A | B | C |
| Pressure range | I | II | III |
| Set pressure [mbar] | +2.0 up to +3.5 | >+3.5 up to +14 | >+14 up to 35 |
| [inch W.C.] | +0.8 up to +1.4 | >+1.4 up to +5.6 | >+5.6 up to 14 |
| Valve pallet | Aluminium | Stainless Steel | Stainless Steel |
| Sealing | FEP | FEP | Metal to Metal |
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other connections upon request
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”.
