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SV Series Flame Arresters

Features & Benefits
  • Lightweight arresters in zinc alloy or aluminium alloy
  • Optional weatherhood for protection from the elements
  • Male to female connection adapters available

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Principles of Operation

The Elmac Technologies® SV Series of Light Duty End-of-Line Flame Arresters are designed for installation at the end of a pipeline, or on an atmospheric vent, from vessels where flammable gases or vapours may be present. SV Flame Arresters provide a cost-effective solution for situations where a simple lightweight product is required. Typical applications include gas purging of equipment and sample or instrumentation lines.

The Elmac SV Series Flame Arresters use elements with small apertures which allow gases or vapours to pass. During a deflagration, the combustion products are cooled at the element surface by heat dissipation. This prevents continuation of the combustion process through the arrester and into the protected vent line.

Explosion Groups

Elmac SV Series End-of-Line Arresters are ATEX certified for gas explosion groups IIB3 at a maximum operating temperature of +60°C.

Standards Compliance

Elmac Flame Arresters are manufactured in accordance with EN ISO 16852 and approved to ATEX Directive 2014/34/EU.

Enviromental Management
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Technical Specifications

Size NB (mm)15202550
Model Number (with weatherhood)SV15FHSV20MHSV25MHSV50MH
Model Number (without weatherhood)SV15FSV20MSV25MSV50M
Screw Connection1/2” BSPT female3/4” BSPP male1” BSPP male2” BSPP male
Approximate Wt (kg)0.10.10.20.3
DescriptionSV15FHSV20MHSV25MHSV50MH
BodyMazak 3 Zinc AlloyMazak 3 Zinc AlloyMazak 3 Zinc AlloyLM6 Aluminium Alloy
Element Core316L Stainless Steel316L Stainless Steel316L Stainless Steel316L Stainless Steel
Element Core Retaining RingAluminiumAluminiumAluminiumAluminium
WeatherhoodAluminiumAluminiumAluminiumAluminium
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