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

Pumps for Special ApplicationsSubmersible motor pumps made of stainless steel castingSeries description Wilo-EMU FA…RFDifferent impeller shapes are used:• W = Vortex impeller• E = Single-channel impellerThe hydraulics are equipped with counter rings (single-channelimpellers only) and stationary wear rings made of hardened materials.These easily exchangeable wear parts guarantee long-term efficiencyof the unit.MotorMotor housing made of stainless steel cast iron.The air-filled T-motors give off their heat to the surrounding fluidand can therefore only be operated for a short time outside of thefluid. The operating mode is documented here specific to type.Wilo-EMU FA…RFSewage pump with submersible motor made of stainless steel castingType key for hydraulicsExample: Wilo-EMU FA 05.23RFWFA = Submersible sewage pump05 = Nominal width of the pressure port DN 50 (x10)23 = Performance characteristic numberRF = Special material, stainless steel castingW = Impeller typeType key for motorsExample: Wilo-EMU T12-2/11G ExT = Motor version12 = Size2 = Number of poles11 = Package lengthG = Sealing versionEx = Ex approvalThe cable inlet is sealed longitudinally watertight. Cable lengths areavailable at fixed stages starting from 10 m.SealingThe sealing of the motor space from the fluid is done in various ways.There are different variants, depending on the type of motor:• Two mechanical seals (G)• Block seal cartridge (K)Options• 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 applicationSewage pumps for pumping aggressive fluids. All parts cominginto contact with this have rust-proof stainless steel quality V4A(AISI 316). As standard with protective hose and elastomers madeof Viton.ConstructionSubmersible sewage pump made of rust-proof stainless steel as submersiblemonobloc unit for wet sump installation and portable installation.HydraulicsHousing and impeller made of stainless steel cast iron. The outlets onthe pressure side are designed as horizontal flange connections. Themaximum possible dry substance content, depending on the hydraulicsand impeller type, is 8%. The ball passages are between 35 and45mm.396 Subject to change without prior notice 09/2007 WILO AG