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
Características
Función y descripción
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 Soupape de surpression Valve designed to open and relieve excess pressure and to reclose and prevent the further flow of fluid after normal conditions have been restored. in one device Appareil 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. . The device protects against deflagration and stable detonation. The weight-loaded pallet type valve (5) integrated in the shock absorber Amortisseur de choc A shock absorber is a device that reduces the kinetic energy of a detonation. (1) of the In-Line Detonation Flame Arrester is designed as a pressure relief valve. The set pressure Pression de réponse Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. 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 Clapet Valve pallet is the generic term for the assembly that rests on the valve seat. works as a check valve Soupape de retenue A check valve allows flow of the operating media in one direction and prevents flow in the opposite direction. . This means that the product cannot flow back from the suction line into the tank. Although several functions are integrated in a single 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. , 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 Operating temperature Temperature reached when the equipment is operating under design conditions. of up to +60°C / 140°F and absolute operating pressure Pression de service Operating pressure is the pressure existing at normal operating conditions within the system being protected. 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.
Dimensiones
To select the nominal size Diamètre nominal The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (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 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 Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | A | C, D | E |
The housing and the cover with shock absorber can also be delivered in steel with an ECTFE coating Revêtement Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. .
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
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
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
Modelo y especificación
There are two different designs available:Set pressure
| Pressure: | +2.0 mbar | +35 mbar |
| +0.8 inch W.C. | +14 inch W.C. |
Higher or lower settings 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”.
