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

Sewage Pumps for Building ServicesSubmersible motor pumps without maceratorEquipment/function Wilo-Drain TC 40, STS 40, 65, 80, 100Wilo-Drain …TC 40 STS 40 (A) STS 65/... STS 65 F STS 80 F STS 100 FOperating modeS1 (permanent operation)Immersed•(200 h/year)•(200 h/year)• • • •Surfaced – –Only withcooling jacketOnly withcooling jacketOnly withcooling jacketOnly withcooling jacketS2 [min] 10 10 10 10 10 10S3 (intermittent operation) [%] 25 25 25 25 25 25Switching frequency/h maximum 30 50 50 50 20 20Switching frequency/h recommended 20 20 20 20 20 20ConstructionSealing on the motor end: Mechanical seal – – – • – –Shaft seal ring – • • – • •Sealing on pump side: Mechanical seal • • • • • •Shaft seal ring • – – – – –Oil barrier chamber – • • • • •Submersible • • • • • •Open single-channel impeller – – – – – –Open multi-channel impeller – – – – – –Vortex impeller • • • • • •Turbulence apparatus – – – – – –MaterialsMotor Stainless steel • • • • • •Grey cast iron – – – – – –Pump Composite – – – – – –Grey cast iron • • • • • •Impeller Stainless steel – • – – – –Composite • – – – – –ApplicationGrey cast iron – – • • • •Wet sump installation Stationary • • • • • •Portable • • • • • •Mobile – – – – – –Dry sump installation Vertical – – • • – –Horizontal – – • • – –• = available or authorised, – = not available or not authorised42 Subject to change without prior notice 09/2007 WILO AG