Flanges Steel Reinforced (Slip-On)
Polypropylene or polyethylene encapsulated backing flange with solid embedded carbon steel ring. Prevents bolt hole elongation while eliminating corrosion. Custom bores and threaded sizes available.
Blind Flanges (PE & Steel)
Solid blanking flanges manufactured in thick PE polymer and coated carbon steel. Designed for terminal pipeline dead-ends, inspection manways, and hydrostatic pressure testing blocks.
Metallic Backing Flanges (Slip-On)
Heavy-duty metallic backing rings for HDPE stub flanges. Fabricated from hot-dip galvanized or epoxy-coated Carbon Steel, as well as marine-grade Stainless Steel (SS304/SS316).
Weldneck & Puddle Flange
Butt weld type flanges engineered for concrete chamber penetrations, water reservoir tank entries, and groundwater barrier puddle stops to prevent soil seepage along the pipe sleeve.
Spacers for Butterfly Valves
Precision HDPE / PP machined spacer rings providing essential axial clearance so butterfly valve discs can open 100% without binding against thick HDPE stub flange shoulders. Available with or without gasket grooves.
Request Flanges & Backing Rings Quote
Mention required drilling standard (DIN 2501, ANSI B16.5, BS10), pipe bore sizes, core material, and order quantity.