Elmac Technologies - EVA Series - Flame Arresters - Brochure

Protecting People, Property and Our PlanetProtecting People, Property and Our PlanetTECHNICAL DATAFlame ArrestersEVA SeriesEnd of LineDeflagration Arresterwith Replaceable ElementApplication:The Elmac Technologies® EVA series end-of-line defl agration 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 defl agration.www.elmactechnologies.comPrinciple of OperationThe EVA series incorporates Elmac’s enhanced crimped ribbon technology in the fl ame arresting element, the metal matrix of which has been optimised using CFD to ensure industry leading fl ow and pressure drop characteristics.During a defl agration the combustion products are cooled at the element surface by heat dissipation, which prevents continuation of the combustion process through the arrester and into the protected vent line.Standards ComplianceAll Elmac defl agration arresters have been tested and certifi ed in accordance with national or international standards.Actual device performance is verifi ed in the Elmac Technologies “state of the art” in-house test facility.Benefi ts• Exceptional fl ow capacities with minimal pressure drop• Easy-clean, replaceable, crimped-ribbon elements• Unique element design is less susceptible to fouling/clogging• Sizes and materials to suit a wide range of applications• End connections include fl anged or threaded options• Light weight for ease of installation• Bird screen fi tted as standard• The Elmac technical team can advise on specifi c location queriesExplosion GroupsElmac end-of-line defl agration arresters in the EVA series are ATEX approved for gases in Explosion Groups IIA1 and IIA.Elmac ExpertiseElmac have been manufacturing protection equipment since 1948, and bring enhanced levels of fl ame and explosion protection to a diverse range of applications. Elmac Technologies offers considerable technical leadership and using test facilities along with CFD capabilities, employs research teamsrenowned for developing solutions for the most challengingof industrial applications.EMS535425 FM535423Protecting People, Property and Our PlanetProtecting People, Property and Our PlanetEVA SeriesEnd-of-Line Deflagration Arrester with Replaceable ElementGeneral Arrangements:Standard Material Specifi cationsEVA Flow CurvesRef Description Carbon Steel Stainless Steel1 Weatherhood 316 Stainless Steel 316 Stainless Steel2 Element Housing Carbon Steel 316 Stainless Steel3 Element Core 316L Stainless Steel 316L Stainless Steel4* Gasket PTFE PTFE5 Element Flange Carbon Steel 316 Stainless Steel6 Fasteners Carbon Steel BZP 316 Stainless Steel7 Reducer Carbon Steel 316 Stainless Steel8 Fixing Flange Carbon Steel 316 Stainless Steel9 Bird Screen 316 Stainless Steel 316 Stainless SteelNB (mm) 15 20 25 32 40 50* 65 80* 100ØA (mm) 245 245 245 245 245 245 300 300 360B (mm) 182 187 189 190 195 185 220 220 236Approx Wt (kg) 6.6 6.8 7.1 7.4 7.8 8.2 13.8 14.5 19.1Pressure drop performance varies according to a particular arrester confi guration.Further information is available on request from the Elmac Customer Support Team.Customer SupportElmac Technologies LimitedGreenfi eld, Flintshire, United Kingdom CH8 9DPT +44 (0) 1352 717600 F +44 (0) 1352 717642 E sales@elmactechnologies.comAll specifi cations are correct at time of print, are for guidancepurposes only and subject to change without prior notice.Issue No 02 (10/13)9876 51987651DimensionsVariations:32EVA Arresters: ØDN 15 - 40mm EVA Arresters: ØDN 50 - 600mmNB (mm) 125 150* 200* 250* 300* 350* 400* 450* 500* 600ØA (mm) 420 500 500 600 660 790 870 950 1030 1200B (mm) 269 315 315 482 518 332 340 380 393 451Approx Wt (kg) 25.0 39.2 44.0 76.6 99.4 108.5 128.6 150.0 173.6 219.0* Not shown in General Arrangement drawings aboveElementFeature Standard Fitting Options*Arrester Materials Carbon or Stainless Steel Low Temperature Carbon Steel, Duplex Steel, HastelloyElement Material 316L Stainless Steel HastelloyConnections ANSI 150 Flange PN16 Flange, Female BSP/NPT, Male BSP/NPTArrester Finish Painted (Carbon Steel Arresters) Offshore Paint, PTFE Coated, Others on RequestBird Screen 316 Stainless Steel 304 Stainless Steel, PTFE Coated* May be limited according to arrester sizeOperating ConditionsThe operating temperature range for EVA arresters is -20°C to +60°C.* This size of arrester is available with a larger element for enhanced fl ow capabilities. Please contact Customer Support for details.