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Description
This premium stepped coupling Type II is designed for secure, watertight and airtight connections between pipes of slightly different outside diameters. Manufactured to a high specification, it provides a dependable joint where pipes need to be joined, repaired or adapted without the need for complex fittings or hot works.
Ideal for use in drainage, sewer, vent and general service pipe systems, this stepped coupling is suitable for a wide range of pipe materials and applications. Its stepped design accommodates common outside diameter combinations, making it a versatile solution for on-site installers, maintenance teams and contractors.
Product Features
- Stepped design to accommodate differing outside diameters for reliable pipe-to-pipe connections.
- Available outside diameter ranges (mm): 108–114.3, 110–112, 110–114.3, 150–160 and 160–168.3.
- Standard coupling width of 110 mm for a generous sealing surface and secure clamping.
- Suitable for joining pipes manufactured from a variety of materials, including plastic, clay and metal.
- Robust construction with corrosion-resistant components for long-term performance in demanding environments.
- Engineered for use in below-ground and above-ground pipework where a flexible, stepped joint is required.
- Designed as a Type II stepped coupling for transitional connections between non-identical pipe sizes.
Key Features and Benefits
- Enables quick and convenient adaptation between mismatched pipe diameters, reducing the need for bespoke fittings.
- Flexible design helps absorb minor misalignment and movement in the pipe system, lowering stress on the joint.
- Provides a reliable seal to help prevent leaks and infiltration, supporting system integrity and compliance.
- Simple clamp-style installation saves time on site, minimising downtime and labour costs.
- Versatile OD range coverage means one coupling type can serve multiple pipe standards and materials.
- Durable construction offers long service life, reducing the frequency and cost of future maintenance.
Specifications
| Specification | Detail |
|---|---|
| Product type | Premium stepped coupling Type II for pipe connections |
| Outside diameter options (mm) | 108–114.3, 110–112, 110–114.3, 150–160, 160–168.3 |
| Coupling width | 110 mm |
| Compatible pipe materials | Plastic, clay, metal and other common pipeline materials (within OD range) |
| Typical applications | Drainage, sewer, vent, service and general pipework connections |
| Installation method | Clamp and tighten around prepared pipe ends using standard hand tools |
Applications and Ideal Uses
This stepped coupling Type II is suited to both new installations and remedial works where pipes of different outside diameters must be securely joined.
- Connecting drainage or sewer pipes of slightly different sizes during refurbishment or extension work.
- Adapting between plastic and clay or metal pipes in mixed-material pipe networks.
- Repairing damaged pipe sections by inserting a replacement piece and coupling to existing pipework.
- Creating transitional joints in vent or service pipe lines where standards or materials change.
- Maintenance and upgrade projects in commercial, industrial and municipal pipe systems.
Frequently Asked Questions
How do I choose the correct stepped coupling size for my pipes?
Measure the actual outside diameter of each pipe you want to join and select the stepped coupling option whose stated OD range covers both values. The coupling is designed so that each end fits snugly around the relevant outside diameter within its range.
Can this stepped coupling be used to connect different pipe materials?
Yes, the coupling is suitable for joining pipes made from different materials, such as plastic, clay and metal, provided the outside diameters fall within the specified ranges. Always ensure the pipe ends are clean, sound and prepared according to good installation practice.
Is special equipment required to install the stepped coupling?
No specialist equipment is normally required. In most cases, standard hand tools are sufficient to position the coupling over the pipe ends and tighten the clamps to the recommended torque, achieving a secure and leak-resistant joint.