Provides a controlled transition between different nominal diameters.
These are commonly referenced standards for system selection. Final applicable editions and conformity are subject to project requirements and approved product documentation.
The inner waterway uses 304 / 316L austenitic steel and the outer layer uses polypropylene random copolymer. Sealing cores, socket fusion and electrofusion vary by product and size; confirm final dimensions against project drawings.
| Nominal size | System material | Connection note |
|---|---|---|
| DN25×20 | 304 / 316L + PPR | Socket fusion reference |
| DN32×20 | 304 / 316L + PPR | Socket fusion reference |
| DN32×25 | 304 / 316L + PPR | Socket fusion reference |
| DN40×20 | 304 / 316L + PPR | Socket fusion reference |
| DN40×25 | 304 / 316L + PPR | Socket fusion reference |
| DN40×32 | 304 / 316L + PPR | Socket fusion reference |
| DN50×32 | 304 / 316L + PPR | Confirm fusion method per project |
| DN50×40 | 304 / 316L + PPR | Confirm fusion method per project |
| DN63×40 | 304 / 316L + PPR | Confirm fusion method per project |
| DN63×50 | 304 / 316L + PPR | Confirm fusion method per project |
| DN75×40 | 304 / 316L + PPR | Confirm fusion method per project |
| DN75×50 | 304 / 316L + PPR | Confirm fusion method per project |
| DN75×63 | 304 / 316L + PPR | Confirm fusion method per project |
| DN90×40 | 304 / 316L + PPR | Confirm fusion method per project |
| DN90×50 | 304 / 316L + PPR | Confirm fusion method per project |
| DN90×63 | 304 / 316L + PPR | Confirm fusion method per project |
| DN90×75 | 304 / 316L + PPR | Confirm fusion method per project |
| DN110×40 | 304 / 316L + PPR | Confirm fusion method per project |
| DN110×50 | 304 / 316L + PPR | Confirm fusion method per project |
| DN110×63 | 304 / 316L + PPR | Confirm fusion method per project |
| DN110×75 | 304 / 316L + PPR | Confirm fusion method per project |
| DN110×90 | 304 / 316L + PPR | Confirm fusion method per project |
A coordinated piping system focused on water safety, dependable connections, installation and maintenance.
The austenitic steel inner layer carries water for quality building-water applications
A fully jacketed composite structure gives buried or concealed runs PPR outer protection
The inner layer uses a dual-seal socket core to form a stable metallic waterway
The outer layer supports socket or electrofusion for different sizes and site conditions
A clear installation workflow with practical adaptability to site conditions
Coordinated pipes and fittings help control installation and spare-part costs
Sealing points and outer fusion work together to reduce lifecycle maintenance input
The PPR outer layer supports insulation and helps reduce heat loss during transport
Actual suitability is determined by design conditions, technical documentation and project approval.
