Electrofusion Reducer
Radius Systems electrofusion reducers join two compatible polyethylene pressure pipes with different outside diameters. The first size is the larger connection and the second is the smaller connection.
Variant data
| SKU | Pipe reduction | Reference dimensions H × L × W | Published fuse / cool time |
|---|---|---|---|
| WA4275 | 63 × 50 mm | 99 × 117 × 78 mm | 90 sec / 9 min |
| WA4281 | 90 × 63 mm | 133 × 154 × 117 mm | 120 sec / 10 min |
| WA4286 | 110 × 90 mm | 154 × 188 × 136 mm | 120 sec / 10 min |
| WA4291 | 125 × 110 mm | 177 × 169 × 158 mm | 140 sec / 12 min |
Reference data from Radius Systems' 2024 electrofusion fittings brochure. Always follow the data on the supplied fitting and packaging, which takes priority if it differs.
Confirmed specification
- High-strength PE100 reducer with exposed-wire electrofusion zones.
- 40 V fitting with 4.0 mm terminal pins for all listed variants.
- Radius classifies the reducer family as universal and publishes a family maximum operating pressure of 16 bar. Confirm the exact fitting's approval, pipe SDR, service and permitted operating pressure before installation.
- Tested for compatible PE80 and PE100 pipe across a range of SDRs; both pipe ends must match the selected outside diameters.
- End-load-bearing transition when correctly installed.
Installation essentials
- Keep the reducer packaged until both pipe ends are ready. Work in a clean, dry, sheltered area.
- Cut each end square and mark the correct insertion depth. Scrape with an approved tool without over-scraping; do not touch or wipe the prepared surfaces.
- Re-round oval pipe where required, insert both sizes fully to their stops and secure the complete assembly with alignment clamps.
- Use compatible, calibrated 40 V electrofusion equipment and leave the clamps in place for the complete fusion and cooling cycles.
- Do not reheat after an interrupted cycle. Confirm the control box completed without error and inspect the joint before commissioning.
See the three supporting gallery images for Radius Systems’ preparation, equipment, fusion, cooling and quality guidance for these socket fittings. Use trained, competent installers and appropriate protective footwear, eye protection and gloves. Follow the actual fitting’s voltage, fusion and cooling instructions; keep clamps in place throughout both cycles. Do not reheat or commission a fitting after an interrupted cycle. A raised fusion indicator does not prove joint quality: inspect the joint, check the control-box result, retain fusion records and joint references, and pressure-test by the approved procedure before commissioning.
Radius Systems reducer product page · official electrofusion fittings brochure
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