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Grates and Frames

Orca Stainless grated trench and sump grates and frames are the traditional solution to drainage issues areas for situations in which there is high potential for corrosive.

An Orca stainless grate, in a frame suited to a trench or sump is a custom made product, usually incorporated in a cast in-situ concrete channel. As these products are made to specification the client has the option of requesting items which suit their individual requirements. Orca has designed and produced many special purpose systems and is pleased to assist with the design process.


Custom Orca Stainless products are available in stainless grade 304 suitable for the majority of applications. For special situations, including marine or special environments, SS316 is available to order. Electro polishing is available on request. This process improves the look of all stainless products while increasing resistance to staining.

Grating Types

Orca stainless sump grates and frames, trench grates systems can be supplied in a number of configurations and suit internal and external drainage requirements for sites. Griptech stainless grates and grated trench systems are options that provide a heelsafe, anti-slip finish. Bike safe grates (reference AS3996 – 2019) are critical requirement for many applications which are accessible by the public.

  • Marine environments
  • Food processing areas
  • Private residence drainage applications
  • Wet areas associated with industrial processes

Talk to us about your Stainless Steel Grates and Frames