PP Reducing Bush
Technical Specification
- Material: Polypropylene (PP-B)
- Manufacturing standard: BS 4991 : 1974
- Configuration: Reducing bush
- Connection type: Socket fusion
- Working Pressure: 10 bar
Description
The PP Reducing Bush is a versatile polypropylene fitting designed to reduce the diameter within a PP pipe system. It can be used to step down one side of a PP fitting or to connect two PP pipes of different sizes, providing a neat and reliable transition without compromising system integrity.
Manufactured to BS 4991 : 1974, this reducing bush is produced from high-quality polypropylene block copolymer (PP-B), offering excellent impact resistance and long-term performance in demanding industrial environments. Once socket fused, it forms a strong, permanent joint with excellent resistance to pressure, temperature and aggressive chemicals.
Lightweight, corrosion resistant and maintenance free, PP reducing bushes are widely used across chemical processing, water treatment and industrial pipework installations.
Key Features & Benefits
- Size reduction fitting: Allows smooth transition between different pipe diameters
- Socket fusion connection: Creates a strong, permanent joint
- Standards compliant: Manufactured to BS 4991 : 1974
- Excellent chemical resistance: Suitable for aggressive and corrosive fluids
- High impact strength: Performs reliably down to -20°C
- Smooth bore: Minimises pressure loss and maintains efficient flow
- Corrosion free: Will not rust, scale or degrade over time


| SKU | Nominal Bore / d x d1 (inch) | I (mm) | Z (mm) | Weight (g) |
| 392226 | 1 x 1/2 | 46 | 29 | 14 |
| 392227 | 1 x 3/4 | 46 | 26 | 16 |
| 392228 | 1 1/4 x 1 | 48 | 26 | 20 |
| 392229 | 1 1/2 x 1 | 57 | 33 | 34 |
| 392230 | 1 1/2 x 1 1/4 | 51 | 28 | 54 |
| 392231 | 2 x 1 | 57 | 35 | 54 |
| 392232 | 2 x 1 1/4 | 64 | 39 | 56 |
| 392233 | 2 x 1 1/2 | 56 | 32 | 40 |
| 392234 | 3 x 1 1/2 | 91 | 66 | 135 |
| 392235 | 3 x 2 | 81 | 52 | 150 |
| 392236 | 4 x 2 | 81 | 50 | 210 |
| 392237 | 4 x 3 | 86 | 49 | 220 |
| 392238 | 6 x 4 | 143 | 100 | 600 |
