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Description
These premium plastic to metal adaptor couplings provide a dependable way to join plastic pipe to metal pipework, helping you create secure, watertight transitions in new installations or retrofit projects. Designed to accommodate small differences in pipe dimensions, they ensure a reliable seal between dissimilar materials without the need for complex jointing methods.
Featuring a robust multiple seal gasket system, these adaptor couplings are ideal for plumbing, drainage, and industrial process lines where leak prevention and long-term performance are critical. With a choice of common outside diameter combinations from 42.4–40 mm up to 88.9–90 mm, and widths of 85 mm or 110 mm, they offer a versatile solution for a wide range of pipe connection requirements.
Product Features
- Adaptor design for secure connection between plastic and metal pipes of differing outside diameters.
- Available outside diameter pairings including 42.4–40 mm, 48.3–50 mm, 60.3–63 mm, 76.1–75 mm and 88.9–90 mm, plus additional size options.
- Choice of coupling widths: 85 mm for compact installations and 110 mm for increased sealing surface.
- High-performance multiple seal gasket to deliver a tight, reliable seal under pressure and minor misalignment.
- Corrosion-resistant metal clamp band combined with durable elastomeric sealing material for long service life.
- Mechanically tightened clamp system to provide consistent compression around the full pipe circumference.
- Suitable for use on compatible plastic and metallic pipe materials commonly used in plumbing, drainage and industrial services.
Key Features and Benefits
- Ensures secure, leak-resistant transitions between plastic and metal pipes, reducing the risk of system downtime and water damage.
- Multiple seal gasket design compensates for minor surface irregularities and diameter tolerances, improving reliability on site.
- Simple mechanical installation with basic hand tools saves time compared with more complex jointing or welding methods.
- Versatile size range allows one product family to cover a broad spectrum of pipe diameters, simplifying specification and stockholding.
- Durable construction withstands demanding service conditions, helping to extend maintenance intervals and lower lifecycle costs.
- Compact coupling widths support use in confined plant rooms, service ducts and retrofit applications with limited access.
Specifications
| Specification | Detail |
|---|---|
| Product type | Plastic to metal adaptor coupling with multiple seal gasket |
| Outside diameter options (mm) | 42.4–40, 48.3–50, 60.3–63, 76.1–75, 88.9–90 (plus additional size combinations available) |
| Coupling width (mm) | 85 or 110, depending on selected variant |
| Sealing element | Multi-lip elastomeric gasket for enhanced sealing performance |
| Clamp construction | Metal band with mechanical fasteners for circumferential compression |
| Typical applications | Plumbing, drainage, process pipework and service connections between plastic and metal systems |
Applications and Ideal Uses
These adaptor couplings are designed for use wherever plastic pipework needs to be securely joined to metal pipes, especially in systems where reliable sealing and ease of installation are essential.
- Domestic and commercial plumbing systems connecting plastic distribution lines to existing metal mains.
- Gravity and pumped drainage networks requiring transitions between plastic sewers and metal legacy pipework.
- Industrial process lines where plastic chemical lines are interfaced with metal plant manifolds or equipment.
- Building services installations, including plant rooms and risers, where mixed-material pipe systems are used.
- Repair and retrofit works to replace sections of pipe with alternative materials while retaining existing infrastructure.
Frequently Asked Questions
Can these adaptor couplings be used with both pressure and non-pressure pipe systems?
Yes, they are suitable for many pressure and non-pressure applications, provided the operating pressure, temperature and media are compatible with the coupling design and the pipe materials. Always verify the suitability of the selected size and construction for your specific system conditions.
How do I choose the correct size of plastic to metal adaptor coupling?
Select the coupling based on the outside diameter of each pipe you are connecting. Choose the variant that matches the plastic pipe OD on one side and the metal pipe OD on the other, and then select the appropriate width (85 mm or 110 mm) according to space available and sealing requirements.
Do I need any special tools or sealants to install these couplings?
No special sealants are normally required as the multiple seal gasket provides the sealing function. Installation typically only needs standard hand tools to tighten the mechanical fasteners on the metal band. Pipes should be cut square, cleaned, and deburred before fitting to ensure optimal sealing performance.