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Description
These premium PVCu union plain metric fittings provide a secure, demountable connection between two sections of pipe, allowing you to quickly assemble, adjust or remove pipework without cutting. Designed for use with metric PVCu pressure pipe, they offer a reliable, leak-resistant joint that can be repeatedly disconnected and reconnected as needed.
Lightweight yet robust, these corrosion-resistant fittings are ideal for water treatment systems, industrial process lines, irrigation, and general fluid handling installations. Available in a wide range of metric sizes, they support straightforward installation and long service life in both commercial and light industrial environments.
Product Features
- Plain metric socket ends for solvent welding to compatible PVCu pipe
- Union design allows easy disconnection of pipe sections for maintenance or modification
- Available in common metric sizes including 20mm, 25mm, 32mm, 40mm, 50mm and additional larger options
- Manufactured from rigid PVCu for strength, dimensional stability and long-term performance
- Light grey industrial finish for easy identification within pipework systems
- Precision-moulded threads and sealing surfaces to support leak-resistant joints
- Suitable for use in many water-based and non-aggressive chemical applications (check compatibility before use)
Key Features and Benefits
- Lightweight construction simplifies handling and installation, especially in overhead or confined spaces.
- Corrosion-resistant PVCu material helps maintain system integrity in damp or chemically challenging environments.
- Union joint design reduces downtime by allowing rapid isolation, replacement or cleaning of pipe sections and equipment.
- Plain socket ends are quick to solvent weld, creating a strong, permanent bond with standard PVCu pipe.
- Wide range of metric sizes supports consistent system design and easy integration into new or existing pipework.
- Low maintenance and long service life contribute to reduced whole-life system costs.
Specifications
| Specification | Detail |
|---|---|
| Material | Unplasticised polyvinyl chloride (PVCu) |
| Connection type | Plain socket ends for solvent weld with union nut centre section |
| Available sizes | 20mm, 25mm, 32mm, 40mm, 50mm plus additional metric options |
| Colour | Light grey |
| Typical use | Pressure and distribution pipework for water and compatible fluids |
| Installation method | Solvent cement welding to PVCu pipe, hand tightening of union nut |
Applications and Ideal Uses
These PVCu union plain metric fittings are suitable for a wide range of fluid handling installations where secure, demountable joints are required.
- Water treatment, filtration and dosing systems
- Industrial and commercial process pipework carrying compatible liquids
- Aquaculture, fish-keeping and aquatic circulation systems
- Cooling and circulation lines in plant rooms and mechanical services
- Irrigation and horticultural watering networks using metric PVCu pipe
Frequently Asked Questions
How do I install these PVCu union plain metric fittings correctly?
Cut and deburr the PVCu pipe, dry fit to check alignment, then apply suitable PVCu solvent cement to both the pipe and the fitting socket before pushing fully home and holding until set. Once the solvent-welded joints have cured, bring the union faces together with the gasket in place and hand-tighten the union nut. Do not overtighten, and always follow the solvent cement manufacturer’s instructions.
Which size union fitting do I need for my pipework?
Select the fitting size that matches the outside diameter of your metric PVCu pipe. For example, use a 25mm union for 25mm metric PVCu pipe. If you are unsure of your pipe size, measure the outside diameter carefully and refer to metric sizing rather than nominal bore descriptions.
Are these fittings suitable for hot water or chemical applications?
These PVCu fittings are generally suitable for cold water and many non-aggressive chemicals within the temperature and pressure limits recommended for PVCu systems. They are not usually intended for high-temperature or steam service. Always check the chemical compatibility and maximum operating temperature of PVCu against your media and operating conditions before use.