Fully submersible drainage pump for vertical wet well installation for pumping contaminated and sandy water. Hydraulics housing and impeller made of cast iron, motor housing made of aluminium. Pressure connection with centric and vertical pressure outlet and Storz coupling. Surface-cooled motor in three-phase current version with sheath flow cooling and sealing chamber. Detachable connection cable with float switch and CEE plug. The seal employs two bidirectional mechanical seals. The unit can be used without limits in slurping operation.
Operating Data
Fluid media: Water 100 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Max. delivery head: 42.17 m
Product data
Hydraulics type: Multi-channel impeller
Free ball passage of the hydraulics: 6 mm
Maximum operating pressure: 4.5 bar
Max. immersion depth: 12.5 m
Fluid temperature: 3…40 °C
Max. fluid temperature: 40 °C
Motor data
Mains connection: 3~400V/50 Hz
Voltage tolerance: +-10 %
Power factor: 0.88
Rated power: 7.5 kW
Power consumption: 9.5 kW
Rated current: 15.6 A
Starting current: 85 A
Activation type: Direct online (DOL)
Rated speed: 2,860 1/min
Max. switching frequency: 15 1/h
Insulation class: F
Protection class: IP68
Operating mode (immersed): S1
Operating mode (non-immersed): S1
Cable
Connection cable length: 20 m
Cable type: H07RN-F
Cable cross-section: 4G1,5
Mains plug: DMS + CEE M 32
Type of connection cable: Non-detachable
Equipment/function
Float switch: Yes
Explosion protection type: –
Motor protection: No
Materials
Pump housing: 5.1301/EN-GJL-250
Impeller: EN-GJS-500-7
Shaft: 1.4021
Sealing on pump side: QQPGG
Sealing on motor side: BVPGG
Gasket material: FKM
Motor housing: Aluminium
Installation dimensions
Pipe connection on the suction side: , –
Pipe connection on the discharge side: Storz A, PN10
Ordering information
Brand: Wilo
Product description: KS 70ZH DS
Net weight, approx.: 82 kg
Article number: On request
