SVE Series

Light Duty End of Line Flame Arresters with Fixed Elements

Application

The Elmac Technologies^® SVE series of light duty end-of-line deflagration arresters is designed for installation at the end of a pipeline or on an atmospheric vent from vessels where flammable gases or vapours may be present. SVE arresters provide an economical solution for situations where a simple light weight product is required. Typical applications include gas purging of equipment, sample lines and instrumentation lines.

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

• Available in sizes from 10mm to 50mm nominal bore
• Suitable for gas groups up to IIB3
• Lightweight arresters in carbon steel or stainless steel
• BSP/NPT screwed connections in accordance with ISO7-1 and ISO7-2
• Optional weatherhood for environmental protection
• The Elmac technical team can advise on specific location queries

Gas Groups

Elmac flame arresters in the SVE range are for use with gases in Groups I, IIA, IIB1, IIB2 and IIB3

General Layout

Material Specifications

Dimensions

Operating Limits

Pressure Drop & Flow Curves

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

Variations

The SVE series of light duty end of line flame arresters has the following options:

• Female fixing (BSPT/NPT)
• Male fixing (BSP/NPT)
• Optional weatherhood

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.

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