Where HDPE meets valves, pumps and steel, the joint is a stub end and backing ring. We mould and machine stub ends from DN20 to DN1600 with serrated or smooth faces, and supply backing rings in ductile iron, carbon steel or stainless, hot-dip galvanised or epoxy coated for buried and marine service.
Drilling patterns are the detail that stops a shipment on site, so we confirm ANSI B16.5 / B16.47, EN 1092-1, AS 4087 or JIS before production and mark each ring with the pattern and size.
Key features
- Stub ends DN20–DN1600, long and short neck
- Backing rings in ductile iron, carbon steel or stainless
- Hot-dip galvanised or fusion-bonded epoxy coating
- ANSI, EN 1092-1, AS 4087, JIS and customer-specific drilling
- Drilling pattern confirmed in writing before production
Specifications
| Stub end material | PE100 |
|---|---|
| Backing ring | Ductile iron / carbon steel / 304 / 316 |
| Coating | Hot-dip galvanised, FBE, or painted |
| Drilling | ANSI B16.5, EN 1092-1, AS 4087, JIS 10K |
| Size range | DN20 – DN1600 |