PVC Union Metric x Inch
Technical Specification
- Material: Unplasticised Polyvinyl Chloride (PVCu)
- Sizes: 1/2" x 20mm to 3" x 90mm
- 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 connect metric PVC pipework to imperial PVC systems while retaining the convenience of a demountable union. Manufactured from high-quality PVCu, it provides a reliable and corrosion-resistant solution where different pipe sizing standards need to be joined within the same installation.
One end features a metric solvent weld socket, while the opposing side accommodates imperial pipework, with a central union nut allowing the connection to be easily separated and reassembled without cutting the pipe. The internal sealing ring ensures a secure, leak-free joint once tightened, making it ideal for installations that may require future maintenance or modification.
Commonly used in refurbishment projects, system upgrades and mixed-standard pipework installations, this adaptor union offers a clean and professional way to bridge metric and imperial PVC systems while maintaining pressure integrity and compliance with recognised standards. When installed using the correct solvent cement and cleaner, it forms a strong, permanent joint with the pipe, ensuring reliable operation across both potable water and industrial applications.
For more information, please visit our PVCu Pressure Pipe Guide!
Key Features & Benefits
- Metric to imperial conversion: Connects differing pipe standards within a single system
- Demountable union design: Allows disconnection without cutting pipework
- High-pressure performance: Rated to 16 bar at 20°C
- Solvent weld connections: Strong, permanent joints on both metric and imperial sides
- EPDM sealing ring: Provides a dependable, leak-free seal
- Durable PVCu construction: Resistant to corrosion, impact and a wide range of chemicals
- Potable water approved: Suitable for drinking water installations
Dimensions
| SKU | Nominal Size (inch x mm) | d (mm) | Rp (inch) | L1 (mm) | L2 (mm) | Z (mm) | H (mm) | E (mm) | F (inch) |
| 356516 | 1/2" x 20 | 20 | 1/2" | 16 | 15 | 14 | 45 | 43 | 1" |
| 356517 | 3/4" x 25 | 25 | 3/4" | 19 | 16.3 | 15.7 | 51 | 54 | 1 1/4" |
| 356518 | 1" x 32 | 32 | 1" | 22 | 19.5 | 15.5 | 57 | 60 | 1 1/2" |
| 356519 | 1 1/4" x 40 | 40 | 1 1/4" | 27 | 21 | 19.6 | 68 | 75 | 2" |
| 356520 | 1 1/2" x 50 | 50 | 1 1/2" | 31 | 21.4 | 27.6 | 80 | 81 | 2 1/4" |
| 356521 | 2" x 63 | 63 | 2" | 38 | 25.7 | 34.3 | 98 | 99 | 2 3/4" |
| 356522 | 3" x 90 | 90 | 3" | 51 | 33.3 | 40.7 | 125 | 134 | 4" |
Downloads
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