WGalweld tubes made of continuously galvanized strip steel stand for the best possible zinc adhesion and formability. This makes them ideal for high requirements and extreme stress. Our technically and economically unique process gives steel tubes outstanding corrosion protection. Both the smoothly planed outer weld seam and the inner seam are corrosion-resistant thanks to the thermally applied metallic inline coating.
What are the advantages of Wuppermann sprinkler pipes?
Sprinkler pipes with a continuously galvanized weld seam in the inner and outer seam areas provide significantly more safety overall for closed and media-carrying pipe systems. The lightweight but high-performance and thus cost-efficient WGalweld tubes are roll grooved. They can optimally replace conventional, heavy threaded pipes.
WGalweld 5E and 7E are particularly economical and resource-saving variations with different zinc coating thicknesses on the outer and inner surfaces.
WFlow 5 and WLight 7, the non-galvanized models with a pickled surface (specially designed for wet systems), complete the range.
All Wuppermann sprinkler pipes are tested and certified according to FM, UL and ULc quality characteristics.
Customer benefits of Wuppermann's innovative sprinkler pipes
We offer homogeneous and smooth pipe surfaces inside and outside in a continuous high quality, which ensure a secure and tight fit of the fittings on the pipe and make downstream organic coating cheaper. In addition, the flawless pipe surfaces result in low hydraulic pressure loss.
We enable optimized pipe wall thicknesses, which result in larger inner pipe diameters. This can reduce pipe costs and facilitate installation in pipe systems. Best C-values allow redimensioning of pipes and numerous plant components (C-values are subject to official approval).
What are the special features of WGalweld pipes that can also be used as sprinkler pipes?
WGalweld pipes are manufactured from galvanized steel strip in accordance with EN 10346. The strip galvanized steel offers the advantage that the zinc layer cannot flake off - not even in the case of subsequent roll grooving on site. The corrosion protection is thus fully preserved and guaranteed all round by the galvanized weld seam inside and outside for the pipe.
Quality-relevant key data
Below you will find our quality-relevant key data, which distinguishes our production of sprinkler pipes:
• Certified according to ISO 9001:2015 and ÖNORM EN ISO 3834-3.
• Pipe standards: EN 10217-1 / ASTM A 795
• Galvanizing standards: EN 10346 / ASTM A 653
• Inspection certificate according to EN 10204 - 3.1
• Certified welders according to ÖNORM EN ISO 14732:2013
• Certified NDT personnel according to ÖNORM EN ISO 9712
• FM, UL and ULc certified
• Continuous inline monitoring of weld quality by means of thermography
• Inline eddy current inspection of the weld seam
• Continuous inline measurement of the pipe geometry
• In-house pressure testing and roll grooving equipment
• Every single pipe is pressure tested (min. 85 bar)