Universal fittings
Wide-tolerance multi-diameter transition coupling
Wide-tolerance transition coupling, designed to connect pipes of two different diameters and/or materials securely and watertight. Made of GGG-50 ductile iron, it is the definitive solution for complex repairs and network transitions.
- 22references
- 61 – 611 mmsize range
The GA03-1 multi-diameter transition coupling is the most versatile tool for the water network professional. It has been designed to solve one of the greatest challenges in maintenance and repairs: joining pipes of different diameters, materials and ages. This coupling not only connects pipes with different outside diameters within a wide range, but also allows one nominal diameter to be joined to a different one (e.g. DN100 to DN150).
Its design is based on a robust central body and clamping lugs made of GGG-50 ductile iron, guaranteeing superior structural strength. Each end has an independent EPDM gasket that adapts perfectly to the pipe surface, ensuring complete watertightness even when the materials are different (PVC, cast iron, steel, asbestos cement, etc.).
It is the indispensable item for emergency crews and network renewal projects, where non-standard pipe sizes are commonly found. It allows fast, reliable installation, absorbing misalignment and offering a permanent solution without the need for custom-made parts.
- Central body and lugs
- High-strength GGG-50 ductile iron.
- Sealing gasket
- Adaptable-profile EPDM rubber for a tight seal.
- Bolts
- High-strength zinc-plated steel, grade 8.8.
- Key functionality
- Allows a transition (step) coupling between two different diameter ranges.
- Universal compatibility
- Suitable for a wide variety of rigid materials (PVC, PE, cast iron, steel, etc.).
- Flexibility
- Accommodates slight angular deflection, making assembly easier on misaligned pipes.
- Assembly type
- Non-restrained. Requires anchoring systems to counteract axial forces.
- Connection 1 (OD range)61-94 mm | Connection 2 (OD range): 106-134 mm - Weight: 12.90 kg
- Connection 1 (OD range)81-114 mm | Connection 2 (OD range): 106-134 mm - Weight: 14.50 kg
- Connection 1 (OD range)81-114 mm | Connection 2 (OD range): 156-187 mm - Weight: 17.50 kg
- Connection 1 (OD range)106-134 mm | Connection 2 (OD range): 156-187 mm - Weight: 19.30 kg
- Connection 1 (OD range)156-187 mm | Connection 2 (OD range): 198-227 mm - Weight: 24.50 kg
- Connection 1 (OD range)156-187 mm | Connection 2 (OD range): 216-257 mm - Weight: 29.90 kg
- Connection 1 (OD range)198-227 mm | Connection 2 (OD range): 271-309 mm - Weight: 31.80 kg
- Connection 1 (OD range)216-257 mm | Connection 2 (OD range): 271-309 mm - Weight: 32.90 kg
- Connection 1 (OD range)241-279 mm | Connection 2 (OD range): 311-349 mm - Weight: 35.60 kg
- Connection 1 (OD range)311-349 mm | Connection 2 (OD range): 351-389 mm - Weight: 37.60 kg
- Connection 1 (OD range)311-349 mm | Connection 2 (OD range): 396-434 mm - Weight: 41.80 kg
- Connection 1 (OD range)351-389 mm | Connection 2 (OD range): 396-434 mm - Weight: 43.60 kg
Full dimensions and weights in the Technical data sheet (PDF).
- Diameter transitionsFor increasing or reducing the main diameter of a line.
- Network connection (new to old)The perfect solution for connecting a new metric PVC line to an old cast iron network with imperial sizes.
- Emergency repairsReduces the need to hold a large stock of parts, since a single coupling covers multiple repair scenarios.
- Rehabilitation projectsSimplifies the integration of new sections into existing infrastructure with worn pipes or uncertain sizes.
- Complex jointsIdeal for situations where pipes are not perfectly aligned or are of different materials.
References
Wide-tolerance multi-diameter coupling
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