Acu-Tech sells a range of standard size Blind Flanges. Blind flanges are a round plate, used to cover or close the end of a HDPE pipeline. Blind flanges use backing rings and bolts to hold it to the end of the HDPE pipe. Also known as blind pipe flange, or solid flange, a blind flange has mounting holes around the perimeter, and prevents fluids from passing through the pipe. When used with a tee fitting, blind flanges allow easy access to inspect inside a pipeline.
Acu-Tech supplies blind flanges in a galvanised finish or in stainless steel, to suit poly pipe from 15 mm to 800 mm.
For your convenience, Acu-Tech also sells Bolt Sets, Gaskets and Backing Rings to suit Blind Flanges. See https://www.acu-tech.com.au/ancillary-items/