Enardo 7 Series - Emerson

1 IntroductionEnardo 7 Series deflagration flame arrestors are designed to stop the propagation of confined low pressure deflagrations. The Enardo 7 Series is typically used for end-of-line and near end-of-line applications when the system operating pressure is near atmospheric levels and when there is minimal probability of a flame stabilizing on the Flame Arrestor element for an extended Enardo 7 Series prevents flame propagation by absorbing and dissipating heat using spiral wound crimped ribbon flame cells. These cells allow maximum flow with maximum with flanged connections, this arrestor allows removal of the flame cell element for easy cleaning and replacement without removing the arrestor body from the pipe connection.

2 Standard housing construction is Aluminum, Carbon steel and Stainless steel. The element is available in Aluminum or Stainless steel. Special material and protective coatings are available on Certified 1 in. / 25 mm through 12 in. / 300 mm, D (IIA) and C (IIB3).Factory Mutual Approved 2 in. / 50 mm to 12 in. / 300 mm, D (IIA).Figure 1. Enardo 7 SeriesHastelloy is a mark owned by Haynes International, Available in carbon steel and stainless steel and Available SizesEnardo 7 Series Deflagration Flame Arrestor: 1 to 36 in. / 25 to 900 mmEnardo EN-7 Series ISO-16852 Certified: 1 to 12 in. / 25 to 300 mm(1) Enardo 7 Series Factory Mutual Approved: 2 to 12 in. / 50 to 300 mmConstruction MaterialsHousing: Aluminum, Carbon steel, 304 Stainless steel, 316 Stainless steel and Hastelloy Cell.

3 Aluminum, 304 Stainless steel, 316 Stainless steel, Hastelloy and ExoticGas GroupD (IIA), C (IIB3) and B (IIC)Additional Technical DataFor more technical information, contactyour local Sales Office or log on Maximum Flow Less Pressure Drop Easy Cleaning Less Clogging Less Maintenance Single Element Design Fluoropolymer Coated Hardware Provides Outstanding Corrosion and Chemical Resistance Easy Accessible and Removable Flame Cell for Easy Inspection and Service Bi-directional Design Standard Temperature Probe on EN Models Available in ANSI, DIN and JIS FlangesEnardo 7 SeriesDeflagration Flame Arrestor1D104107X016 Table 1. Enardo EN-7 Series Flame Arrestor Dimensions(1)MODELA (NOMINAL CONNECTION SIzE)B (HOuSING SIzE)C (OuTSIDE DIAMETER)D (OvERALL LENGTH)APPROxIMATE EN-70803375820012305164069543 Enardo EN-7080441008200123051640610146 Enardo EN-71204410012300164062153316876 Enardo EN-71206615012300164062153318182 Enardo EN-716066150164002050833838278126 Enardo EN-716088200164002050833838298135 Enardo EN-720088200205002461038965386175 Enardo EN-7201010250205002461038965443201 Enardo EN-72410102502460029737411041622282 Enardo EN-724121230024600297374110416723051.

4 Dimensions may vary somewhat from those given above. Allow for a tolerance of in. / 25 mm. Specific dimensions available on THERMOCOuPLE REquIRED, SECOND THERMOCOuPLE OPTIONAL. 3/4 NPTADCH astelloy is a mark owned by Haynes International, a 10 in. Concentric Enardo EN-7 Series Deflagration Flame Arrestor with a 20 in. Carbon steel housing. ANSI 150 lbs. raised faced flange connections and 304 Stainless steel IEC Group IIA flame cell element. It also has additional options of drain plugs and standard temperature :1200 IIACR124 ENFigure 2. Enardo EN-7 Series Flame Arrestor DimensionsKey to Enardo EN-7 Series Flame Arrestor Model NumberConnection Size01 = 1 in. to 12 = 12 Size04 = 4 in. to 24 = 24 Gas GroupIIA (D)IIB3 (C)Housing MaterialC = Carbon steel4 = 304 Stainless Steel6 = 316 Stainless SteelH = Hastelloy Cell Material4 = 304 Stainless Steel6 = 316 Stainless SteelH = Hastelloy Connection TypeF = Flat Faced FlangeR = Raised Face Flange2 Options1 = Drain Port2 = Temperature Probe (standard)3 = Pressure Tap4 = Miscellaneous Fittings5 = Protective Coatings6 = Special FeaturesENSeriesEnardo 7 SeriesFlame Arrestor (Concentric)E7 if Eccentric77EN Certified ModelEnardo 7 SeriesDeflagration Flame Arrestor2 Table 2.

5 Standard Enardo 7 Series Flame Arrestor Dimensions(1)MODELA (NOMINAL CONNECTION SIzE)B (HOuSING SIzE)C (OuTSIDE DIAMETER)D (OvERALL LENGTH)APPROxIMATE WEIGHT (GROuP D MODELS) 7221212300225502666034863477216 Enardo 724121230024600297374110415902681. 14 inches to 36 in. and over Dimensions available on request. Dimensions may vary somewhat from those given above. Allow for a tolerance of in. / 25 mm. Specific dimensions available on is a mark owned by Haynes International, 3. Standard Enardo 7 Series Flame Arrestor DimensionsKey to Enardo 7 Series Flame Arrestor Model NumberConnection Size01 = 1 in. to 36 = 36 Size04 = 4 in. to 72 = 72 Gas GroupIIC (B)IIB3 (C)IIA (D)Housing MaterialC = Carbon steel4 = 304 Stainless Steel6 = 316 Stainless SteelH = Hastelloy E = ExoticCell MaterialA = Aluminum4 = 304 Stainless Steel6 = 316 Stainless SteelH = Hastelloy E = ExoticConnection TypeF = Flat Faced FlangeR = Raised Face FlangeOptions1 = Drain Port2 = Pressure Tap3 = Temperature Probe Tap4 = Miscellaneous Fittings5 = Protective Coatings6 = Special FeaturesSeriesEnardo 7 SeriesFlame Arrestor (Concentric)E7 if Eccentric7 Indicates a 10 in.

6 Concentric Enardo 7 Series Deflagration Flame Arrestor with a 20 in. Carbon steel housing. ANSI 150 lbs. raised faced flange connections and 304 S tainless steel NEC Group D flame cell element. It also has additional options of drain plugs and temperature probe :1200 DCR1247*ACBD*Not all models are available with FM approval. Consult Flame Arrestor Certifications page for more Steel and Stainless Steel HousingsEnardo 7 SeriesDeflagration Flame Arrestor3 Aluminum HousingTable 3. Cast Aluminum Enardo 7 Series Flame Arrestor Dimensions(1)MODELA (NOMINAL CONNECTION SIzE)B (HOuSING SIzE)C (OuTSIDE DIAMETER)D (OvERALL LENGTH)APPROxIMATE WEIGHT WITH ALuMINuM CELL (GROuP D MODELS)APPROxIMATE WEIGHT WITH STAINLESS STEEL CELL (GROuP D MODELS) 722121230022550266603486319086255116 Enardo 724121230024600297374110412301043151431.

7 Dimensions may vary somewhat from those given above. Allow for a tolerance of in. / 25 mm. Specific dimensions available on is a mark owned by Haynes International, 4. Cast Aluminum Enardo 7 Series Flame Arrestor DimensionsIndicates a Concentric Enardo 7 Series Deflagration Flame Arrestor with a 20 in. Aluminum housing. ANSI 10 in. flat faced flange connections and 304 Stainless steel NEC Group D flame cell element. It also has additional options of drain plugs and temperature probe :1200 DAF1247 ACBDKey to Cast Aluminum Enardo 7 Series Flame Arrestor Model NumberConnection Size02 = 2 in. to 12 = 12 Size08 = 8 in. to 24 = 24 Gas GroupIIA (D)Housing MaterialA = AluminumCell MaterialA = Aluminum4 = 304 Stainless Steel6 = 316 Stainless SteelH = Hastelloy Connection TypeF = Flat Faced FlangeR = Raised Face FlangeOptions1 = Drain Port2 = Pressure Tap3 = Temperature Probe Tap4 = Miscellaneous Fittings5 = Protective Coatings6 = Special FeaturesSeriesEnardo 7 SeriesFlame Arrestor (Concentric)E7 if Eccentric7 Enardo 7 SeriesDeflagration Flame ArrestorD104107x016 2017 Emerson Process Management Regulator Technologies, Inc.

8 All rights reserved. 05 Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective is a mark owned by Regulator Technologies Tulsa, LLC, a business of Emerson Automation Solutions.