The Wilo SPU4 range.
This pump range is submersible, for vertical and horizontal installation.
Hydraulics
Multistage submersible pump with radial or semi-axial impellers with a shroud design. Integrated non-return valve. All parts that come into contact with the fluid are made from corrosion-resistant materials.
Motor
Rewindable, corrosion-resistant alternating current motor or three-phase current motor for direct starting. Sealed using a mechanical seal with self-lubricating bearings with oil filling.
Cooling
The motor is cooled by the fluid. The motor must always be immersed when operated. The limit value for the maximum fluid temperature may not be exceeded. The limit value for the minimum volume flow may not be exceeded. Vertical installation is possible with or without cooling shroud. A cooling shroud is required for horizontal installation.

25X20mm-reducing socket - upvc solvent weld / glued
20X25mm-Reducing bush - upvc solvent weld / glued
Flange (weld on) 200mm
Clamp saddle 160 x 40
Franklin SS 612/11
Flange (screw on) 15mm
Female coupler x male BSP 32mm
Flange (screwed) 150mm 

