PE-RT II Butt Fusion Reducing Coupler
PE-RT II butt fusion reducing coupler is designed to connect PE-RT II pipes of different outside diameters in a straight pipeline. The available model range covers reducing combinations from 75 × 50 mm through 315 × 280 mm.
Material: PE-RT II
Jointing: Butt fusion welding
Connection Type: Reducing straight connection
Model Range: 75 × 50 mm – 315 × 280 mm
Available Models: 43
All Models & Specifications
Available PE-RT II butt fusion reducing coupler models are listed below. Please provide the required large-end size, small-end size and quantity when requesting a quotation.
| Size (mm) |
|---|
| 75 × 50 |
| 75 × 63 |
| 90 × 50 |
| 90 × 63 |
| 90 × 75 |
| 110 × 50 |
| 110 × 63 |
| 110 × 75 |
| 110 × 90 |
| 125 × 50 |
| 125 × 63 |
| 125 × 75 |
| 125 × 90 |
| 125 × 110 |
| 160 × 50 |
| 160 × 63 |
| 160 × 75 |
| 160 × 90 |
| 160 × 110 |
| 160 × 125 |
| 160 × 140 |
| 200 × 63 |
| 200 × 75 |
| 200 × 90 |
| 200 × 110 |
| 200 × 125 |
| 200 × 160 |
| 200 × 180 |
| 225 × 90 |
| 225 × 110 |
| 225 × 160 |
| 225 × 200 |
| 250 × 110 |
| 250 × 160 |
| 250 × 200 |
| 250 × 225 |
| 315 × 110 |
| 315 × 125 |
| 315 × 160 |
| 315 × 200 |
| 315 × 225 |
| 315 × 250 |
| 315 × 280 |
About PE-RT II Butt Fusion Reducing Coupler
PE-RT II butt fusion reducing coupler is used to make a straight transition between two PE-RT II pipes with different outside diameters. It allows the pipeline size to be reduced while maintaining a welded all-plastic connection.
This fitting is typically selected where the main pipeline changes diameter in heating distribution, hot-water circulation, HVAC hydronic or other compatible PE-RT II systems. Both ends are joined by butt fusion, so correct pipe alignment, end preparation and matching of the required diameters are important during installation.
About PE-RT II Material
PE-RT II (Polyethylene of Raised Temperature Resistance Type II) is a thermoplastic polyethylene material developed for piping systems that must maintain mechanical strength at elevated temperatures. Compared with conventional polyethylene, PE-RT II offers improved long-term temperature resistance while retaining the advantages of a weldable plastic piping material.
Because PE-RT II remains thermoplastic, compatible pipes and fittings can be joined by butt fusion or electrofusion to create a continuous all-plastic pipeline system. The material is also valued for corrosion resistance, resistance to internal scaling, relatively low weight, smooth internal surfaces and good installation flexibility.
Operating Temperature
PE-RT II is intended for hot- and cold-water and heating applications where elevated-temperature performance is required. The exact allowable temperature depends on the pipe and fitting design, SDR or wall thickness, operating pressure and the specified application class. Many PE-RT II piping systems are designed for long-term service in approximately the 70–80°C range, while short-term or maximum design conditions can reach about 95°C. The final temperature and pressure limits should always be confirmed against the actual pipe specification and project design conditions.
Typical Applications
- Secondary district-heating and heat-distribution networks
- Building heating and hot-water circulation systems
- Radiant heating and underfloor heating systems
- HVAC hydronic heating and cooling circuits
- Heat-pump and geothermal circulation systems
- Compatible industrial hot-water and thermal-fluid pipelines
- Other hot- and cold-water piping applications requiring a corrosion-resistant welded plastic system
Selection Considerations
For project selection, the required pipe outside diameter, SDR or wall thickness, design pressure, normal operating temperature, maximum temperature, fluid medium and installation method should be confirmed together. This is especially important for heating networks because allowable pressure changes with operating temperature and the intended service life.
Product Details
Overview
The PE-RT II butt fusion reducing coupler provides a straight transition between two different PE-RT II pipe outside diameters. It is joined by butt fusion welding to form an integrated pipeline connection.
Product Features
- PE-RT II construction
- Butt fusion jointing
- Reducing connection between different pipe diameters
- Wide model range up to 315 × 280 mm
- Suitable for compatible PE-RT II piping systems
Applications & Installation
Typical Applications
Used in compatible PE-RT II piping systems where a straight transition is required between two different pipe sizes, including heating and hot-water pipeline projects.
Butt Fusion Jointing
Prepare and align the pipe and fitting ends, then carry out butt fusion using compatible welding equipment and the applicable installation procedure for the project.
Ordering Information
- Large-end size × small-end size
- Quantity for each model
- Project operating conditions if required
- Delivery destination
Frequently Asked Questions
How should I specify the reducer size?
Specify the larger outside diameter first and the smaller outside diameter second, for example 160 × 110 mm.
What is the largest listed model?
The largest listed reducing combination on this page is 315 × 280 mm.
What information is needed for a quotation?
Please send the required reducer sizes, quantity for each size and delivery destination so we can confirm availability, pricing and lead time.
International Buyer & Sourcing Information
PE-RT II butt fusion reducing couplers are used to connect compatible PE-RT II pipes of different sizes by butt fusion. They are relevant to heating-pipe distributors, plumbing wholesalers and importers sourcing mixed-size fittings. Provide both pipe sizes, quantity and destination market.
Need PE-RT II butt fusion reducing couplers?
Send us your required size combinations and quantities for quotation and lead-time confirmation.
Related Products
PE-RT II Butt Fusion 90° Elbow
Butt-fusion elbow for 90-degree direction changes in PE-RT II pipelines.
PE-RT II Butt Fusion Equal Tee
Equal-size butt-fusion tee for 90-degree branch connections.
PE-RT II Butt Fusion Reducing Tee
Reducing butt-fusion tee for smaller branch connections from a PE-RT II main.