Pump & Valve Solutions to Power Generation Industry

Steloy Castings has solidified its leadership in the production of precision high pressure castings for use in major power generation components and nuclear power plants in the energy sector. We have the advanced technology and know-how required to produce critical components and industrial castings for heat, wear and corrosion resistant applications, particularly in the generation and handling of steam.

Pump & Valve Castings for Power Generation

Steloy Castings has specialised in the supply of as-cast and machined components for pumps and valve castings manufactured in stainless steels, nickel-based corrosion resistant alloys, carbon steels and low alloy steels for applications where severe corrosion, high pressure and high or cryogenic temperatures are prevalent. Our extensive expertise and technical knowledge working with major OEMs in the industry, allows Steloy to offer the highest degree of efficiency for pump assemblies to cater for technically complex and demanding applications and high cycle use. The Steloy casting process enables the design and manufacture of safety critical components, using high integrity moulding methods that ensure the production of consistent castings that eliminate the risk of failure and greatly enhances the primary systems of power plants.

Typical cast components and their material specifications are:

  • Burner nozzles
  • Furnace tubes
  • Wear resistant grids
  • Pump casings
  • Pump impellers
  • Valve Bodies

Product Range:


  • Pump Casings
  • Impellers
  • Wear Rings
  • Pump Bowls
  • Stage Casings


  • Valve Bodies
  • Balls
  • Butterflies
  • Bell Mouths

Castings are produced at the three Steloy plants, all of which have access to centralised solidification analyses and modelling (MAGMASOFT) and CNC patternmaking capabilities. All components are produced in accordance with the relevant ASTM, DIN EN and SEW specifications and conform to applicable NACE specifications.

About Us

Established in 1984, Steloy Castings ranks as one of the most advanced specialist foundries in South Africa, supplying static and centrifugally cast high-alloy components to customers across the globe.


Head Office:
4 Cobalt Street, Ekandustria, Bronkhorstspruit,
South Africa
P.O. Box 1591, Bronkhorstspruit, 1020, South Africa

Tel: +27 13 933 3331
Fax: +27 13 933 3653