Batescrew Axial Flow Pumps.
Impellers are cast Aluminium Bronze, enclosed
within Stainless Steel Running Rings.
Intake Bellmouth Housings and Stator Housings are of Cast Iron
Other parts of the Column and Discharge Head are steel fabrications, hot
Drive Shafts are of grade 431 Stainless Steel, for water-lubricated pumps
and Bright Mild Steel (with Stainless Impeller Shafts) on oil-lubricated
Columns, which house the bearings and lineshaft on oil lubricated pumps,
are hot dip galvanised. Galvanising inside the tubes reduces
contamination of lubricant by the products of condensate corrosion.
Other materials, including Stainless Steel castings and
Stainless fabrications, may be specified as required.
Maximum bearing spacing of the lineshaft is limited to 1.22 metres,
ensuring that the design stress of lineshaft is in compliance with
‘Fixed Fire Pump Standard’ AS2941.
This often means ‘more bearings per pump on Batescrew pumps'.
are reversible, for extra wearing life.