HDPE Electrofusion Siphonic Drainage Coupler
HDPE electrofusion siphonic drainage coupler is used to create a straight welded connection between compatible HDPE drainage pipes. It provides an electrofusion joining option for siphonic and compatible HDPE drainage installations where a controlled, compact pipe-to-pipe connection is required.

Material: HDPE
Jointing: Electrofusion welding
Type: Straight coupler
Size Range: 40–315 mm
Available Models: 12
All Models & Specifications
Available HDPE electrofusion siphonic drainage coupler sizes are listed below.
| Size (mm) |
|---|
| 40 |
| 50 |
| 56 |
| 63 |
| 75 |
| 90 |
| 110 |
| 125 |
| 160 |
| 200 |
| 250 |
| 315 |
About HDPE Electrofusion Siphonic Drainage Coupler
This coupler is designed for straight pipe-to-pipe connections in compatible HDPE siphonic drainage systems. The electrofusion connection method is useful where installation space is limited, where butt-fusion equipment access is difficult, or where a compact connection method is preferred.
The fitting contains an integrated electrofusion heating element. After the pipe ends are prepared and inserted into the coupler, compatible electrofusion equipment is used to complete the welded joint. The coupler size should match the outside diameter of the connected HDPE drainage pipe.
About HDPE Siphonic Drainage Systems
HDPE is widely used in drainage systems because it is corrosion resistant, lightweight and suitable for welded pipe connections. Compatible HDPE drainage systems can use butt fusion and electrofusion fittings together with roof drains and installation accessories to form a complete drainage network.
For siphonic drainage projects, fitting selection should be coordinated with pipe diameter, roof-drain layout, horizontal and vertical pipe routing, connection method and the hydraulic requirements of the project design.
Product Details
Overview
The electrofusion siphonic drainage coupler joins two compatible HDPE pipe ends in a straight line and becomes part of the welded drainage pipe system after fusion.
Product Features
- HDPE construction
- Electrofusion jointing
- Straight pipe-to-pipe connection
- 12 listed sizes
- Size range from 40 to 315 mm
- Suitable for compatible HDPE drainage pipe systems
Applications & Installation
Typical Applications
Used for straight pipe connections in compatible HDPE siphonic roof-drainage and other HDPE drainage installations.
Electrofusion Jointing
Cut and prepare the HDPE pipe ends, clean and scrape the fusion zones as required, insert the pipe ends to the correct depth, secure alignment and complete the weld using compatible electrofusion equipment. Allow the joint to cool before applying installation load.
Ordering Information
- Required pipe size
- Quantity for each size
- Project drainage layout if technical matching is required
- Delivery destination
Frequently Asked Questions
What is the electrofusion coupler used for?
It is used to connect two compatible HDPE drainage pipes of the same size in a straight line using electrofusion welding.
What sizes are available?
The currently listed sizes are 40, 50, 56, 63, 75, 90, 110, 125, 160, 200, 250 and 315 mm.
What information is needed for quotation?
Please send the required sizes, quantities and delivery destination.
Need HDPE electrofusion siphonic drainage couplers?
Send us your required sizes and quantities for quotation and lead-time confirmation.
Related Products
HDPE Siphonic Drainage Sovent
Butt-fusion drainage branch fitting for compatible HDPE stack systems.
HDPE Siphonic Inverted Roof Drain
Roof inlet component for compatible HDPE siphonic drainage systems.

