What is the bending radius of Buteline PB-1 pipe?
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Buteline Polybutene-1 pipe should be installed ensuring that any bending radius is at least 10 times the outside diameter of the pipe. Sharp bends should be made with appropriate fittings.
| Pipe Size | Minimum Bending Radius |
| 12mm (O.D. 13mm) Type 15 PN16 | 120mm |
| 15mm (O.D. 16mm) Type 18 PN16 | 160mm |
| 20mm (O.D. 22mm) Type 22 PN16 | 220mm |
| 25mm (O.D. 28mm) Type 28 PN16 | 280mm |