Stub Flange Plain
Technical Specification
- Product type: Plain stub flange fitting
- Material: Chlorinated polyvinyl chloride (CPVC)
- Manufacturer: Durapipe
- Jointing method: Solvent welding using PVC-C solvent cement and cleaner
- Pressure rating: Up to 16 bar (up to 110mm), 160mm rated to 10 bar
- Size range: 20mm to 160mm
- Manufacturing standard: DIN 8063
- Approvals: WRAS approved, WRc listed
- System compatibility: Corzan CPVC pipe systems
Description
This plain stub flange fitting is designed to form the CPVC side of a flanged joint when used in conjunction with a backing ring and gasket. It allows Corzan CPVC pipework to be bolted to flanged components such as valves, pumps or metal pipe systems, providing flexibility where demountable connections are required.
Manufactured from high-performance Corzan CPVC, the stub flange offers excellent resistance to corrosive chemicals, elevated temperatures and pressurised conditions. The plain end is solvent welded directly onto CPVC pipe using PVC-C solvent cement and Eco-Cleaner, creating a secure and permanent bond without the need for hot works.
The smooth internal bore supports efficient flow through the joint, while the lightweight construction simplifies handling during installation and alignment. As part of a fully matched Corzan CPVC system, this stub flange delivers long service life, reduced maintenance and dependable performance in demanding industrial environments.
Key Features & Benefits
- Flanged connection interface: Enables bolted joints to valves, pumps and metal pipework
- Excellent chemical resistance: Suitable for acids, alkalis and aggressive fluids
- Pressure rated: Up to 16 bar for most sizes
- WRAS approved: Safe for potable water with no taint risk
- No hot works required: Solvent welding avoids welding permits
- Lightweight construction: Easier handling than metal flange alternatives
- Smooth internal bore: Maintains efficient flow through the joint
- Abrasion resistant: Performs reliably in slurry and erosive applications
- System matched: Fully compatible with Corzan CPVC pipes and fittings

| Product Code | A (mm) | B (mm) | D (mm) | Z1 (mm) | Pressure Rating (bar) |
| 351111 | 34 | 19.5 | 7 | 3.5 | 16 |
| 351112 | 41 | 22 | 7 | 3 | 16 |
| 351113 | 50 | 25 | 7 | 3 | 16 |
| 351114 | 61 | 29 | 8 | 3 | 16 |
| 351115 | 73 | 34 | 8 | 3 | 16 |
| 351116 | 90 | 41 | 9 | 3 | 16 |
| 351117 | 103 | 47 | 10 | 3 | 16 |
| 351118 | 125 | 56 | 10 | 5 | 16 |
| 351119 | 150 | 65 | 12 | 4 | 16 |
| 351120 | 212 | 90.5 | 16 | 4.5 | 16 |

