EV/VS, EV/VD

Flame Arrester Unit for vacuum pumps, compressors and blowers

Features

Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Differnt Series
allow increase of FLAMEFILTER® size for given flange connection resulting in lower pressure drop across the device
Spare Parts
cost-effective spare parts
Versatile Application Options
various uses possible
Stainless Steel or Hastelloy
all function-relevant and product-contacting parts are made of stainless steel or Hastelloy
Temperature Sensors Possible
use of temperature sensors for G 1½ and G 2 is possible
Function and Description

Main component - PROTEGO® flame arrester

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 FLAMEFILTER® cage The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set. (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

Dimensions

Dimensions in mm / inches

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.

Design Types and Specifications

There are four different designs:
Flame arrester unit for the pressure side, basic designEV/VD –
Flame arrester unit for the pressure side with integrated temperature sensor* for additional protection against short-time burning on one sideEV/VD- T

*Resistance thermometer for device Device 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. group II, category (1) 2 (GII cat. (1) 2)

Material flame arrester unit

DesignABC
FLAMEFILTER® cageSteelStainless steelHastelloy
GasketPTFEPTFEPTFE
FLAMEFILTER® SetA, BB
C

Special materials upon request

Material combinations of flame arrester unit

Design ACD
FLAMEFILTER® *Stainless steelStainless steelHastelloy
SpacersStainless steelStainless steelHastelloy

* the FLAMEFILTER® is also available in the materials Tantalum, Inconel, Copper, etc. when the listed cage materials are used.

Special materials upon request

Applications

Floating-Roof Storage Tanks

Processing Facilities

Vapor Combustion Systems

Contact CSR Department 

If you have any questions, feedback, or additional input, our team of experts will be glad to support you.

Picture of Mrs. Auris-Nadine Hillen
Mrs. Auris-Nadine Hillen

CSR Department

+49 (0)5307 809 108