Submersible Pump

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Submersible pumps are a cost effective transfer pump ideal for feeding Yardmaster® separators or as a transfer pump for your effluent system. The V-Series of submersible pumps are ideal for feeding a Yardmaster Separator or used as a transfer pump where a high solids loading is present. The Alpha series of submersible pumps are ideal for feeding a Yardmaster separator where a moderate solids loading is present along with a lower flow requirement. These pumps are also suitable as an underpass pump.

All main components are manufactured from grey cast iron Two individual mechanical seals
One on the motor side in the oil chamber The other on the impeller side in contact with the liquid
This along with high quality components, ensures trouble free functioning and reliability of the pump Squirrel cage motor 4 poles (V Series), Squirrel cage motor 2 poles (V and Alpha Series)
Thermal protection T1 and T2 embedded in the motor winding (to be wired to the three pole contactor in the control panel) Class F insulation (155°C)
The motor is kept cool by the liquid in which it is submerged IP 68 protection
Max. permissible liquid temperature: 40°C with pump fully submerged
Maximum depth of immersion: 20 m
Permissible pH value: 6-11
Suitable for liquids with density <1,100 kg/m3
Allowed voltage: 230/400V±5%
Allowed frequency: 50Hz ±2%

Technical Support

It is of vital importance that the support provided for Williams Engineering products is of the same quality and professionalism as that of their manufactured products. Technical support is available through our nationwide dealer network or contact Williams Engineering direct.


Williams Engineering warrants new products sold by it to be free from defects in material and workmanship for a period of twelve months after delivery to the initial user. This warranty is for the replacement or repair of any part found to be defective during the warranty period. This warranty excludes any transport costs incurred by Williams Engineering in giving effect to the warranty and specifically excludes all normal maintenance costs. Replacement parts provided under the terms of this warranty are covered for the remainder of the warranty period applicable to the product in which they are installed as if such parts were original components of that product.

Warranty only applies if the form at the rear of the product manual is completed and returned.