PVC Metric Reducing Bush Plain x Thread
Technical Specification
- Material: Unplasticised Polyvinyl Chloride (PVCu)
- Sizes: 25mm x 1/2" to 110mm x 3"
- Pressure rating: 16 bar at 20°C
- Temperature range: 5°C to 60°C
- Connection type: Solvent Weld
- Colour: Grey
- Standards:
- BS EN 1452-2
- WRAS approved
- BSI Kitemark (ISO 50001:2018)


Description
This fitting is designed to reduce from a metric PVC solvent weld connection to a smaller imperial threaded outlet within a pressurised pipework system. Manufactured from high-quality PVCu, it provides a compact, durable and corrosion-resistant solution for adapting between metric pipework and BSPP threaded components.
The plain metric socket allows for a permanent solvent weld joint, while the integral imperial BSPP thread provides a secure interface for valves, fittings or equipment connections. Its short, reducing profile helps minimise overall system length while maintaining efficient flow characteristics and pressure performance.
Part of a series of adaptor fittings developed for conveying fluids under pressure, this reducing bush is suitable for potable water, commercial plumbing and industrial pipework applications, offering reliable performance in mixed-standard installations when installed using the correct solvent cement and cleaner.
For more information, please visit our PVCu Pressure Pipe Guide!
Key Features & Benefits
- Metric to imperial reduction: Connects metric solvent weld pipe to a smaller BSPP threaded outlet
- Compact reducing design: Minimises space requirements within pipe runs
- High pressure capability: Rated to PN 16 at 20°C
- Solvent weld metric end: Provides a strong, permanent connection
- Precision BSPP thread: Manufactured to ISO 228-1 for secure compatibility
- Durable PVCu construction: Resistant to corrosion, chemicals and impact
- Potable water approved: WRAS approval makes it suitable for drinking water systems
Dimensions


| SKU | Nominal Size (mm x inch) | d (mm) | Rp (inch) | L min (mm) | Z max (mm) | H (mm) | Weight (kg) |
| 359917 | 25 x 1/2" | 25 | 1/2" | 15 | 4 | 19 | 0.008 |
| 359918 | 32 x 3/4" | 32 | 3/4" | 16.3 | 5.7 | 22 | 0.010 |
| 359919 | 40 x 1" | 40 | 1" | 19.1 | 6.9 | 26 | 0.017 |
| 359920 | 50 x 1 1/4" | 50 | 1 1/4" | 21.4 | 9.6 | 31 | 0.030 |
| 359921 | 63 x 1 1/2" | 63 | 1 1/2" | 21.4 | 16.6 | 38 | 0.081 |
| 359922 | 75 x 2" | 75 | 2" | 25.7 | 18.3 | 44 | 0.085 |
| 359923 | 90 x 2 1/2" | 90 | 2 1/2" | 30.2 | 20.8 | 51 | 0.165 |
| 359924 | 110 x 3" | 110 | 3" | 33.3 | 27.7 | 61 | 0.238 |

