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504-506Submersible pumps3" and 4" seriesSeries description Wilo-Sub TWI 5/TWI 5-SEPump curvesH[m]90Wilo-Sub TWI 5/ ..-SE50 Hz80706050304-3084030903-904201000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Q[m³/h]34 Wilo Water Management catalogue – 50 Hz – Water supply – Raw water intake – Edition 2012/2013 – Subject to change without prior notice
Submersible pumps6" seriesSeries description Wilo-Sub TWU 6-..-BSubmersible pumpsDesignSubmersible pump, multistageType keye.g. Wilo-Sub TWU 6-4208-B-SDTWU Submersible pump6 Diameter of the hydraulic unit in inches ["]42 Nominal volume flow [m 3 /h]08 Number of hydraulic stagesB Series generationSD Starting type Without = Direct starting SD = star/delta startingApplication• For water supply from boreholes and rainwater storage tanks• For sprinkling and irrigation• For lowering the water level• For pumping water without long-fibre and abrasive constituentsSpecial features/product advantages• Impellers made of bronze• Integrated non-return valve• Immersion depth up to 350 m• Vertical and horizontal installation possibleTechnical data• Mains connection: 3~400 V, 50 Hz• Immersed operating mode: S1• Fluid temperature: 3-30 °C• Minimum motor flow: 0.08-0.16 m/s• Max. sand content: 50 g/m 3• Max. number of starts: 20/h• Max. immersion depth: TWU 6... = 250 m; TWU 8... = 350 m• Protection class: IP 68• Pressure port: Rp 2 - Rp 5Equipment/function• Multistage submersible pump with radial or semi-axial impellers• Integrated non-return valve• NEMA coupling• Three-phase motor• Hermetically cast motorsMaterials• Hydraulic housing: EN-GJL-200• Impellers: Bronze• Hydraulics shaft: Steel 1.4006• Motor housing: Stainless steel 1.4301• Motor shaft: 1.4305 stainless steelDescription/designSubmersible pump for vertical or horizontal installation.HydraulicsMultistage submersible pump with radial or semi-axial impellers. Integratednon-return valve.MotorThree-phase motor for direct starting. Sealed and hermetically castmotor with enamel-insulated winding, resin-impregnated, self-lubricatingbearing, with water-glycol filling.CoolingThe motor is cooled by the fluid. The motor must always be operatedin submerged state. The limit values for the max. fluid temperatureand the minimum flow rate must not be exceeded. Vertical installationis possible optionally with or without cooling jacket. Coolingjacket is required for horizontal installation.Options• Rewindable motor• Star/delta starting• PT100 sensor for thermal motor monitoring• Motor housing made of 1.4571 material• Motor shaft made of 1.4460 material• Motor versions for special voltages 3~230 V, 50 Hz; 3~500 V, 50 Hz,3~230 V, 60 Hz; 3~380 V, 60 Hz; 3~460 V, 60 HzScope of delivery• Hydraulics + motor fully mounted• 2.5/4/8 m connecting cable approved for potable water• Installation and operating instructionsWilo Water Management catalogue – 50 Hz – Water supply – Raw water intake – Edition 2012/2013 – Subject to change without prior notice35
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Page 9: Planning guideFields of application
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:DWHU 6XSSO\ ÃƒÂ€ 5DZ :DWHU ,QWDNH - WILO

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