Design
Multistage 4” submersible pump in jacketed construction
for vertical and horizontal installation
Application
ƒ
For water supply from boreholes and rainwater storagetanks
ƒ
For domestic water supply, sprinkling and irrigationƒ
Pressure boostingƒ
Lowering the water levelƒ
For pumping water without long-fi bre and abrasiveconstituents
Type key
E.g.
Wilo-Actun FIRST-SPU4.01-10-B/XI4-50-1-230Actun
Family name borehole pumpsFIRST
Product series (basic)SPU
Product type, Submersible pump for universal usewith thermoplastic impellers
4
Nominal pump diameter in inch01
Nominal fl ow in m³/h10
Number of stagesB
Technical GenerationXI
Indicates mounted motor series with predominantstainless steel material (Inox)
4
Nominal motor diameter in inch50-1-
230
Electrical execution; 50 Hz, 1~ 230
Technical data
ƒ
Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hzƒ
Submerged operating mode: S1ƒ
Fluid temperature: 3-30 °Cƒ
Minimum fl ow rate at motor: 0.08 m/sƒ
Max. sand content: 150 g/m3ƒ
Max. number of starts: 20/hƒ
Max. submersion depth: 200 mƒ
Protection class: IP 68ƒ
Pressure connection: Rp 1¼ – Rp 2Equipment/function
ƒ
Multistage submersible-motor pump with radial orsemi-axial impellers
ƒ
Rewindable oil fi lled motorƒ
Integrated non-return valveƒ
NEMA couplingƒ
Single-phase or three-phase motorDescription/design
Submersible-motor pump for vertical or horizontal installation.
Hydraulics
Multistage submersible-motor pump with radial or semi
axialimpellers in jacket design. Integrated non-return
valve. All parts in contact with the fl uid are made of
corrosion-free materials.
