PP Electro-Fusion Long Stub Flange

• Material (up to 110mm): Polypropylene Homopolymer (PP-H)
• Material (125mm and above): Polypropylene Random Copolymer (PP-R)
• Jointing method: Electrofusion / butt welding
• Working pressure: 10 bar
• Connection type: Stub flange (to be used with backing ring and loose flange)
• Application approval: Water use only
• Standards: DIN 16962 Parts 5/6/7/8/9/12, ISO 7279:1984, ISO 15494:2003 Type B
• Operating temperature range: -20°C to 120°C

The PP Electro-Fusion Long Stub Flange is designed to create a reliable flanged connection between polypropylene pipework and valves, fittings, tanks or other flanged equipment. By combining electrofusion jointing with a stub flange interface, it delivers both the strength of a welded joint and the flexibility of a demountable flange connection.

Sizes up to 110mm are manufactured from polypropylene homopolymer (PP-H), while sizes from 125mm and above use polypropylene random copolymer (PP-R) to maintain mechanical performance at larger diameters. The integrated electrofusion heating element melts both the fitting and pipe wall during installation, producing a homogeneous, pressure-resistant joint once cooled.

A profiled fitting body helps distribute mechanical loads evenly, reducing stress at the joint and improving long-term reliability in demanding installations.

• Electrofusion welded joint: Produces a permanent, leak-tight connection
• Flanged outlet: Allows easy bolted connection to valves, equipment or pipework
• Profiled fitting body: Improves stress distribution and joint integrity
• Material optimised by size: PP-H up to 110mm, PP-R from 125mm upwards
• Smooth internal bore: Minimises pressure loss and supports efficient flow
• Excellent chemical resistance: Suitable for aggressive and industrial environments