Back-Flushing Valves - Dorot Control Valves

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Back-Flushing ValvesDouble Chamber Valve Model 51 / 52Materials:Part Standard High Pressure Optional1. Bonnet GRP Aluminum SST2. Diaphragm NR NR EPDM3. Spring SST 302 SST 302 SST 3164. Diaphragm discs Brass Brass SST 3165. Screws SST 302 SST 302 SST 3166. Operator Body GRP Brass SST7. Body Brass Brass SST8. Shaft SST 304 SST 304 SST 3169. Plug assy. Brass Brass SST10. Seals NBR NBR Viton1 2 3514678910Hydraulic performance:Max. recommendedflow at filteringMax. recommendedflow at flushingFlow rate factorat filteringFlow rate factorat flushingModel 51 52Size 2 X 2 2 X 2m 3 /h 40 40gpm 176 176m 3 /h 40 40gpm 176 176Kv (metric) 43 52Cv (US) 50 60Kv (metric) 37 37Cv (US) 43 43Operating pressure range:Standard model: 0.7 - 10 bar / 10 - 150 psiHigh Pressure model: 0.7 - 16 bar / 10 - 230 psiMaximal operating temperature:Standard models - 60°C (140°F)Hot water model - 90°C (195°F)Head loss chart:psi mwc14109876543109876543251, 525152Main parts:1. Bonnet2. Spring3. Diaphragm & actuator kit4. Body5. Grooved connection adapter12324110 20 30 40 50 60 m 3 /h100200 300 gpm50 60 70 8090Filtration modeFlushing mode516updated 01/2012
Double Chamber Valve Model 51 / 52Back-Flushing ValvesApplications:Sand Media FilterDouble Disc Filters SystemOrdering guide:Ordering data Ordering code Ordering data5□ 2X2 □ □ □ □ □□Filtration Flow DirectionSpecial VersionsStraight 1 HW Hot WaterAngle 2 HP High Pressure (16 bar)Inlet port connectionCoatingGrooved adapter → V R ← Polyester RedBSP Thread → B L ← Polyester BlueNPT Thread → N X ← Other (Specify)Outlet port connectionDrain port connectionGrooved adapter → V V ← Grooved adapterBSP Thread → B B ← BSP ThreadNPT Thread → N N ← NPT Thread17updated 01/2012
Page 1 and 2: Back-FlushingValvesProduct Catalogu
Page 3 and 4: Table of ContentsBack-Flushing Valv
Page 5 and 6: IntroductionBack-Flushing ValvesHyd
Page 7 and 8: Model 58P (“Plaslite”)Back-Flus
Page 9 and 10: Model 58P (“Plaslite”)Back-Flus
Page 11 and 12: Models 57 / 58 (“FlushGAL”)Back
Page 13 and 14: Models 57 / 58 (“FlushGAL”)Back
Page 15: Double Chamber Valve Model 51 / 52B
Page 19 and 20: Double Chamber Valve Model 62 / 63B
Page 21 and 22: Double Chamber Valve Model 62 / 63B
Page 23 and 24: Double Chamber Valve Model 09 (“G
Page 25 and 26: Double Chamber Valve Model 09 (“G
Page 27 and 28: Normally Closed Valve Model 60Back-
Page 29 and 30: Models S-300, S-500, S-100Back-Flus
Page 31: Special Applications for Filtration

Back-Flushing Valves - Dorot Control Valves

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