EV/VS, EV/VD
Flame Arrester Unit for vacuum pumps, compressors and blowers

Features
Diseño modular
Permite la sustitución y limpieza de los discos de filtro FLAMEFILTER® de forma individual
Diferentes series
Permite aumentar el tamaño del disco FLAMEFILTER® para una determinada conexión de brida, lo que se traduce en una menor pérdida de carga a través del equipo
Piezas de recambio
Piezas de recambio eficientes en costes
Opciones de aplicación versátiles
Diversos usos posibles
Acero inoxidable o hastelloy
Todas las piezas relevantes para el funcionamiento y en contacto con el producto están fabricadas en acero inoxidable o Hastelloy
Posibilidad de instalar sensores de temperatura
Es posible el uso de sensores de temperatura para G 1½ y G 2
Function and Description

Against the Propagation of Explosions
EV/VS and EV/VD Flame Arrester Units provide manufacturers of vacuum pumps, blowers and compressors with a cost-effective protection for their machines. The high flow velocities in the small gaps of these machines can lead to undesirable ignitions within the housing. One of the safest measures against explosion propagation are Flame Arrester Units that are installed on the inlet and outlet side of the machines.
Main Component – PROTEGO® Flame Arrester Unit
EV/VS for inlet (vacuum side) and EV/VD for outlet (pressure side) are Flame Arrester Units without housing. They are designed modular providing each manufacturer of blowers, vacuum pumps or similar devices the option of using optimized, adapted, and cost-effective Flame Arrester Units. Our expert technical staff will assist you with the proper selection of the devices as well as execution of type testing.

For Explosion Groups IIA to IIC
EV/VS and EV/VD Flame Arrester Units are modular in design and consist of several FLAMEFILTER® (1) installed within the FLAMEFILTER® cage (2). The number of FLAMEFILTER® and the gap size depend on the intended use. Both types have a threaded nozzle for temperature sensors. EV/VS and EV/VD Flame Arrester Units are available for explosion groups from IIC to IIA (NEC groups B to D) and special gases such as Ethylene oxide.
Product Data
Dimensiones
Dimensiones en mm / pulgadas
Selection of FLAMEFILTER® gap
| FLAMEFILTER® gap |
| 0.7 mm |
| 0.5 mm |
| 0.3 mm |
| 0.2 mm |
If you have any questions regarding the selection of the FLAMEFILTER® (number and gap width), our trained specialists will be happy to advise you.
Material flame arrester unit
| Design | A | B | C |
| FLAMEFILTER® cage | Steel | Stainless steel | Hastelloy |
| Gasket | PTFE | PTFE | PTFE |
| FLAMEFILTER® Set | A, B | B | C |
Special materials upon request
Combinación de materiales para la unidad apagallamas
| Design | A | C | D |
| FLAMEFILTER® * | Stainless steel | Stainless steel | Hastelloy |
| Spacers | Stainless steel | Stainless steel | Hastelloy |
* the FLAMEFILTER® is also available in the materials Tantalum, Inconel, Copper, etc. when the listed cage materials are used.
Special materials upon request

