Centrifugal pump EMU KS series

for wastewateroilelectric

Short description
Submersible drainage pump designed for pumping wastewater and process water. Long service life thanks to robust construction; high operational reliability in continuous duty, including slurping operation. Connection cable with plug and optionally fitted float switch in S version.

Key advantages

• Long service life thanks to robust construction
• High operational reliability thanks to continuous duty, also in slurping operation
• Easy handling due to connection cable with plug
• Easy operation due to the fitted float switch (S version)

Design
Submersible drainage pump.

Application

• Wastewater
• Process water

Equipment / function

• Connection cable with plug
• S version: equipped with a float switch
• Oil-cooled motor (up to size 20)
• Sheath flow cooling (from size 24)

Type key / Model designation

Example: Wilo-EMU KS 15x
KS = Submersible drainage pump
15 = Size
x = Version (E, ES, D, DS, DMS, E0, D0, GG, Ceram, Ex, Z, H, M, N, ...)
Versions explained

• E: Single-phase motor
• ES: Single-phase motor with float switch
• D: Three-phase motor
• DS: Three-phase motor with float switch
• DMS: Three-phase with float switch and switchbox with motor protection
• E0 / D0: Versions with bare cable end
• GG: Motor housing in cast iron
• Ceram: Unit with ceram coating
• Ex: with Ex-rated motor
• Z / H / M / N: centre pressure port / high / medium / low-pressure impeller variants

Technical data (summary)

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz (depending on type)
• IP rating: IP68
• Max. immersion depth: 12.5 m
• Fluid temperature: 3 … 40 °C
• Cable length: 10 m or 20 m (depending on size/version)
• Pressure port: Storz coupling size C to A (depending on type)

Materials

• Motor housing: Al or EN-GJL 250 (depending on type)
• Pump housing: EN-GJL 250
• Impeller: EN-GJL 250 (open channel impeller)
• Shaft: 1.4021
• Mechanical seals: motor side C/Cr or C/ceramic; fluid side SiC/SiC
• Static gaskets: FPM

Motor / Cooling / Operation
Up to size 20: oil-filled, self-cooling single- or three-phase motors; detachable 10 m cable with plug. From size 24: surface-cooled three-phase motors with thermal motor monitoring, sheath flow cooling and permanently connected 20 m cable. Ex-rated units use surface-cooled motors without sheath flow cooling. All models are suitable for immersed and non-immersed use and continuous duty, enabling slurping operation.

Seal
Sealing is provided by two bidirectional mechanical seals (motor side and fluid side) and a sealing chamber filled with environmentally safe, potentially biodegradable filling fluid to protect the motor.

Scope of delivery

• Pump with connection cable and plug
• S version: with float switch
• Pressure port with Storz pipe coupling
• Installation and operating instructions

Accessories

• Pressure hose kit with Storz coupling
• Deep suction unit
• Alarm switchgears

Caractéristiques / spécifications techniques

• Mains connection options: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Ingress protection: IP68
• Maximum immersion depth: 12.5 m
• Permissible fluid temperature range: 3 °C to 40 °C
• Cable lengths available: 10 m (detachable) or 20 m (fixed), always with plug (depending on size)
• Pressure connection: Storz couplings (sizes A–C depending on type)
• Typical rated powers in series: examples from 0.75 kW up to 7.5 kW depending on size/version
• Materials: motor/pump housings and impeller primarily EN-GJL 250 (cast iron); shaft 1.4021; mechanical seal combinations as specified above