Ductile Iron Grates for Modern Drainage Infrastructure by EJ Australia

Ductile Iron Grates for Modern Drainage Infrastructure by EJ Australia.

Drainage grates need to balance load performance, durability and project cost. EJ Australia's FlowCast™ offers an alternative to galvanised mild steel (GMS), using high-strength ductile iron in a patented design engineered for Class D performance. The range addresses infrastructure projects where dependable drainage components must withstand demanding service conditions.

According to EJ, stricter load-deflection requirements under AS 3996:2019 have increased the steel content and complexity of conventional GMS grate designs, with implications for manufacturing costs. FlowCast takes a different approach through its cast construction, with long-term durability central to the product's design.

For engineers, asset owners and contractors, the comparison extends beyond initial purchase price to the intended service life of the drainage installation. Load classification remains a project-specific decision: EJ's guidance states that the appropriate class depends on the installation location and must be selected by the designer.

Explore FlowCast's Class D design and drainage specification options with EJ Australia at ejco.com/ap/en.

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2/354 South Pine Road, Brendale, QLD, 4500

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