C2-Sewage Pumps DN 32 to DN 600 - 2008.pdf

Pumps for Special ApplicationsSubmersible motor pumps with mechanical stirring apparatusSeries description Wilo-EMU FA…WRMotorMotor housing made of grey cast iron. Depending on the type ofmotor, the unit can run continuously in wet sump installation or portableinstallation.The air-filled motors (T) give off their heat to the surrounding fluidand can therefore only be operated continuously outside of the fluidin an exceptional case. The operating mode is documented here specificto type.The self-cooling motors (F, FO, FK, FKT, HC) give off their heatdirectly to the pumped fluid via a built-in heat exchanger. They aresuitable for permanent operation either submerged or surfaced.Wilo-EMU FA…WRSewage pump with submersible motor and mechanical stirring apparatusType key for hydraulicsExample: Wilo-EMU FA 08.52WRFA = Submersible sewage pump08 = Nominal width of the pressure port DN 80 (x10)52 = Performance characteristic numberW = Vortex impellerR = Mixer headType key for motorsExample: Wilo-EMU T17-6/16H ExT = Motor version17 = Size6 = Number of poles16 = Package lengthH = Seal versionEx = Ex approvalThe cable inlet is sealed longitudinally watertight in connection withthe T-cable inlet. Up to the size 17 the cable lengths are available infixed stages starting from 10 m. Starting from size 20 the cablelength can be individually configured.SealingThe sealing of the motor space from the fluid is done in various ways.There are different variants, depending on the type of motor:• On the fluid side with a mechanical seal, on motor side with a radialshaft sealing ring (version H)• Two mechanical seals (G)• Block seal cartridge (K)Options• Special materials and coatings against corrosion and abrasion• Diverse monitoring equipment depending on the type of motor (sealingchamber control, bimetal or PTC thermistor temperature sensor,bearing temperature, ...)• Plugs and switchgear• Level controlsFields of applicationPumping of sewage with sand and gravel content, as well as in theindustrial and commercial areas.ConstructionSubmersible sewage pump with mechanical stirring apparatus assubmersible monobloc unit for wet sump and portable installation.HydraulicsHousing and impeller made of grey cast iron. The outlets on the pressureside are designed as horizontal flange connections. The ball passagesare between 23 and 58 mm. Only vortex impellers are used, onwhich a mechanical stirring apparatus with a mixer head is attached,made of the chilled cast iron material abrasite. This is attached as anaxial extension of the motor shaft.362 Subject to change without prior notice 09/2007 WILO AG