Electrofusion (EF) socket coupler for joining two PE pipes of the same diameter. An embedded resistance wire heats the fusion zone and welds the joint homogeneously โ the standard connection method for gas and high-pressure water networks.
| Material | PE100, virgin raw material |
| Standards | EN 1555-2 (Gas) / EN 12201-2 (Water) |
| Size range | dn 25 โ 630 mm (standard series) |
| Pressure class | SDR11 = PN16 ยท SDR17 = PN10 |
| Welding | Electrofusion per ISO 12176 |
| MOQ | Negotiable โ trial orders welcome |
| Delivery | 15 โ 25 days after deposit |
| Shipping port | FOB Ningbo / Shanghai |
The HDPE electrofusion coupler connects two polyethylene pipes of equal diameter into a permanent, leak-free joint. A resistance wire is embedded in the fitting's fusion zone; when energised by an electrofusion control box, the wire heats the pipe surface and the coupler interior to melting point, fusing both into one homogeneous body.
Compared with butt fusion, electrofusion requires no heavy machinery on site, tolerates tighter working spaces, and delivers repeatable weld quality โ which is why EF fittings are the first choice for gas distribution networks and urban water mains, where joint reliability is critical.
Each coupler is injection-moulded from virgin PE100 and machined to controlled fusion-zone tolerances. Fittings are supplied with fusion parameters matched to standard EF control boxes, and can be marked with your own brand under our OEM service.
Standard electrofusion jointing procedure per ISO 12176 โ simple, fast and repeatable on site.
Cut pipe square and chamfer the edge
Remove the oxidised layer with a rotary scraper
Wipe the fusion zone with an alcohol wipe
Align with clamps, connect the EF control box and weld
Hold clamped through the full cooling time
Standard electrofusion coupler series to EN 1555-2 / EN 12201-2, PE100. Wall thickness shown is the nominal minimum for each SDR class.
| dn (mm) | SDR 11 ยท PN16 โ min. wall (mm) | SDR 17 ยท PN10 โ min. wall (mm) | Fusion type |
|---|---|---|---|
| 25 | 2.3 | 1.5 | Electrofusion (embedded resistance wire) |
| 32 | 3.0 | 1.9 | |
| 40 | 3.7 | 2.4 | |
| 50 | 4.6 | 3.0 | |
| 63 | 5.8 | 3.8 | |
| 75 | 6.8 | 4.5 | |
| 90 | 8.2 | 5.4 | |
| 110 | 10.0 | 6.6 | |
| 125 | 11.4 | 7.4 | |
| 140 | 12.7 | 8.3 | |
| 160 | 14.6 | 9.5 | |
| 180 | 16.4 | 10.7 | |
| 200 | 18.2 | 11.9 | |
| 225 | 20.5 | 13.4 | |
| 250 | 22.7 | 14.8 |
* Table shows the standard series dn 25โ250. Larger sizes up to dn 630 are produced on request. Welding voltage and fusion time are controlled by the electrofusion control box per ISO 12176; unit weight and packaging are provided with each quotation.
Based on the company's official manufacturing profile.
Rongsheng Pipeline Technology (Zhejiang) manufactures electrofusion fittings in-house at its Zhuji plant in the Yangtze River Delta โ direct factory pricing, no trading middleman.
The company operates a complete set of inspection and testing equipment, checking each production batch before shipment.
Fittings are produced from imported virgin PE100-grade material โ no recycled content โ for long-term pressure performance.
Quality and environmental management systems certified. CE (EN 1555 / EN 12201) certification is in progress to support EU exports.
Custom markings, packaging and private-label production available for distributors and project contractors.
Precision-machined fusion zones with embedded resistance wire deliver consistent, homogeneous joints when welded per ISO 12176.
The questions buyers ask most before sending an inquiry.
MOQ is negotiable and depends on the size class โ small trial orders and mixed-size orders are welcome. Tell us the sizes and quantities you need in the inquiry form and we will confirm the best combination.
Yes. Samples of standard sizes are available; sample pieces are free of charge, shipped freight collect via DHL / FedEx. Production-size samples for project evaluation can be arranged on request.
Standard sizes ship 15โ25 days after deposit, depending on order quantity. Peak-season or large-diameter orders are confirmed individually at quotation.
Standard terms: 30% T/T deposit, balance against copy of B/L. Irrevocable L/C at sight is accepted for orders above USD 20,000. Other terms can be discussed for long-term partners.
The fittings are produced to the requirements of EN 1555-2 (gas) and EN 12201-2 (water) with PE100 raw material. Test reports and material certificates are provided with shipment; CE certification is in progress.
Yes. We print your logo, marking layout and packaging design under OEM service, subject to minimum quantities per size. ODM development for special fittings is also available.
Same product family โ real photos from the Rongsheng factory.
Tell us the size (dn), SDR class and quantity โ our sales team replies within 24 hours.
