PVC Reducing Adaptor Threaded M x F
Technical Specification
- Material: Unplasticised Polyvinyl Chloride (PVCu)
- Sizes: 1/2" x 3/8" to 4" x 3"
- Pressure rating: 15 bar
- Temperature range: 5°C to 60°C
- Connection type: Threaded (BSP)
- Colour: Grey
- Standards:
- WRAS approved
- BSI Kitemark-certified


Description
This PVCu reducing threaded adaptor is designed to connect BSP threaded components of different sizes where a male-to-female threaded transition is required. It provides a compact and efficient way to reduce thread size without introducing additional fittings, making it ideal for adapting valves, instruments or pipework within an imperial threaded system.
Manufactured from corrosion-resistant PVCu, the adaptor offers reliable long-term performance across water supply, industrial installations and general engineering applications. Precisely formed BSP threads ensure secure mechanical joints when installed with a suitable thread sealant, while the reducing profile helps keep installations neat and space efficient.
For more information, please visit our PVCu Pressure Pipe Guide!
Key Features & Benefits
- Male to female thread reduction: Connects BSP threaded components of different sizes
- Compact reducing design: Minimises added length and simplifies pipe layouts
- BSP threaded connections: Provide secure mechanical joints without solvent welding
- Corrosion-resistant PVCu: Prevents rust, pitting, and scale build-up
- Imperial sizing compatibility: Designed to match standard BSP threaded fittings
- Ideal for system adaptation: Suitable for retrofits, upgrades and maintenance work
Dimensions


| SKU | Nominal Size (inch) | Rp (inch) | G (inch) | L1 (mm) | L2 (mm) | CH (mm) | H (mm) | E (mm) |
| 357101 | 1/2 x 3/8 | 3/8 | 1/2 | 15 | 11.4 | 24 | 36 | 23 |
| 357102 | 3/4 x 3/8 | 3/8 | 3/4 | 16.3 | 11.4 | 30 | 37 | 23 |
| 357103 | 3/4 x 1/2 | 1/2 | 3/4 | 16.3 | 15 | 30 | 41 | 28 |
| 357104 | 1 x 3/8 | 3/8 | 1 | 19.1 | 11. | 36 | 40 | 23 |
| 357105 | 1 x 1/2 | 1/2 | 1 | 19.1 | 15 | 36 | 43 | 28 |
| 357106 | 1 x 3/4 | 3/4 | 1 | 19.1 | 16.3 | 36 | 45 | 34 |
| 357107 | 1 1/4 x 1/2 | 1/2 | 1 1/4 | 21.4 | 15 | 46 | 46 | 28 |
| 357108 | 1 1/4 x 3/4 | 3/4 | 1 1/4 | 21.4 | 16.3 | 46 | 50 | 34 |
| 357109 | 1 1/4 x 1 | 1 | 1 1/4 | 21.4 | 19.1 | 46 | 51 | 42 |
| 357110 | 1 1/2 x 3/4 | 3/4 | 1 1/2 | 21.4 | 16.3 | 50 | 50 | 34 |
| 357111 | 1 1/2 x 1 | 1 | 1 1/2 | 21.4 | 19.1 | 50 | 53 | 42 |
| 357112 | 1 1/2 x 1 1/4 | 1 1/4 | 1 1/2 | 21.4 | 21.4 | 55 | 55 | 51 |
| 357113 | 2 x 1 | 1 | 2 | 26 | 19.1 | 65 | 51 | 42 |
| 357114 | 2 x 1 1/4 | 1 1/4 | 2 | 26 | 21.4 | 65 | 58 | 51 |
| 357115 | 2 x 1 1/2 | 1 1/2 | 2 | 26 | 21.4 | 65 | 57 | 58 |
| 359842 | 2 1/2 x 1 1/4 | 1 1/4 | 2 1/2 | 30.2 | 21.4 | 80 | 57 | 51 |
| 359843 | 2 1/2 x 1 1/2 | 1 1/2 | 2 1/2 | 30.2 | 21.4 | 80 | 58 | 58 |
| 359844 | 2 1/2 x 2 | 2 | 2 1/2 | 30.2 | 21.4 | 80 | 64 | 71 |
| 359845 | 3 x 1 1/2 | 1 1/2 | 3 | 33.3 | 21.4 | 95 | 68 | 58 |
| 359846 | 3 x 2 | 2 | 3 | 33.3 | 26 | 95 | 74 | 71 |
| 359847 | 3 x 2 1/2 | 2 1/2 | 3 | 33.3 | 30.2 | 95 | 78 | 88 |
| 359848 | 4 x 2 | 2 | 4 | 39.3 | 26 | 120 | 79 | 71 |
| 359849 | 4 x 2 1/2 | 2 1/2 | 4 | 39.3 | 30.2 | 120 | 82 | 88 |
| 359850 | 4 x 3 | 3 | 4 | 39.3 | 33 | 120 | 87 | 102 |

