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AVC Series - End Of Line Deflagration Flame Arresters

Home » Products » End of Line Arresters » AVC End of Line Flame Arrester

avc arrester pngAVC Series

End of Line Deflagration Arrester with Replaceable Element

Application

The Elmac Technologies® AVC series end-of-line deflagration arresters are designed to be installed at the end of a pipeline or exit vent from a vessel, where the ignition source is external, to provide protection against atmospheric deflagration.

Principle of Operation

A flame arrester uses an element with small apertures which allows gas or vapour to pass. If the apertures are smaller than the maximum experimental safe gap (MESG) for the gas or vapour then a flame cannot pass through the arrester, and is subsequently contained or extinguished.

Benefits

  • Variety of sizes and materials to suit a wide range of applications
  • Options available for sour environments
  • Optional weatherhood
  • Replaceable elements
  • The Elmac technical team can advise on specific location queries

Gas Groups

Elmac flame arresters in the AVC range are for use with gases in Groups IIB and IIC.

General Layout

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  1. Weatherhood
  2. Element housing
  3. Element core
  4. Gasket
  5. Body Ring
  6. Fasteners
  7. Reducer
  8. Fixing flange

Material Specifications

Table 1. AVC Series Material Specifications
RefCarbon Steel ModelsLow Temp Carbon Steel ModelsStainless Steel ModelsHastelloy Models
1Stainless or Mild SteelStainless SteelStainless SteelHastelloy
2Carbon SteelLow Temp Carbon SteelStainless SteelHastelloy
3Stainless SteelStainless SteelStainless SteelHastelloy
4Klingersil C4400Klingersil C4400Klingersil C4400Klingersil C4400
5Carbon SteelLow Temp Carbon SteelStainless SteelHastelloy
6Carbon SteelStainless SteelStainless SteelHastelloy
7Carbon SteelLow Temp Carbon SteelStainless SteelHastelloy
8Carbon SteelLow Temp Carbon SteelStainless SteelHastelloy

Dimensions

Table 2. AVC Series Unit Dimensions
NB (mm)2540506580100125150
Ø Element (mm)5080100125150200250300
Ø A (mm)178223255255300370450510
B (mm)135158177221225261308339
Approx Wt (kg)3.55.06.69.514233243

Operating Limits

Table 3. AVC Series Operating Limits
NB (mm)Gas GroupMin Service Temp (°C)Max Service Temp (°C)
25 to 150IIC-20+60

Pressure Drop & Flow Curves

Pressure drop information and flow curve charts for the AVC Series arresters can be found in the AVC product datasheet in the Data Centre.

Variations

The AVC series of end of line flame arresters has the following options:

  • Flange fixing (ANSI 150, or PN16)
  • Female fixing (BSP/NPT)
  • Male fixing (BSP/NPT)
  • Optional weatherhood
end of line variations jpg

Standards Compliance

All flame arresters have been tested and certified in accordance with national or international standards. Actual device performance is verified in the Elmac Technologies "state of the art" in-house test facility.

Elmac Technologies has been independently assessed by a notified body against the requirements of the ATEX Directive 94/9/EC. Elmac flame arresters meet the criteria and are supplied with CE and EX markings, an EC Declaration of Conformity and an EC Type Examination Certificate.

standards jpg

Quick Links:

AVC Series Data Sheet (in data centre)
End of Line Flame Arresters
Elmac Expertise
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Elmac Technologies specialises in the manufacture of Flame Arresters and supply of Pressure Relief Equipment.
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