Home / Catalog / Two-Piece Backing Rings to fit HDPE Pipe Flange Adapters: IPS and DIPS / HDPE Pressure Rated Flanges / DIPS Flange Adapters DIPS Flange Adapters Pressure Rated Stainless Steel Split Flanges for Polyethylene Pipes with Ductile Iron Pipe Stub Ends (12) Pressure Rated Carbon Steel Split Flanges for Polyethylene Pipes with Ductile Iron Pipe Stub Ends (12) Request Information