\nViking Johnson has been chosen as the supplier of large diameter couplings for the new £40 million pipeline network which will supply the Bulgarian city of Ruse with drinking water. The pipeline, which is 21 kilometres long and 1.2 metres in diameter, is being laid to connect Ruse, which is the largest Bulgarian city on the River Danube, with natural water sources in the Slivo Pole area to the north-east of the city.
\n\n\tAs part of the project, Viking Johnson, a division of Crane Building Services & Utilities, is supplying 70 PN10 and PN16 stepped couplings. These are being used to join the glassfibre reinforced pipe mains to the ductile iron branch pipes, coping with differences in diameter of up to 30 mm on the nominal 1,200 mm diameter pipes.
\n\n\tThe couplings are specifically designed to join pipes of disparate materials and sizes and have features to accommodate expansion and contraction and post-installation settlement. They have EDPM gaskets to ensure long-lasting security against leakage and are coated with Rilsan Nylon 11, which is highly resistant to impact, corrosion, abrasion and chemical attack, to give long life performance.
\n\n\tThe Viking Johnson couplings were selected due to their proven quality, 50 year service life and ease of installation. They were supplied to the project through the Viking Johnson Bulgarian agent Glynwed EOOD.
\n\n\tIlian Milev at V & K (Water Supply and Sewage) said: ‘Viking Johnson couplings have an international reputation for reliability in joining pipes of different materials and diameters. They were a natural choice for this major water supply project.’
\n\n\tThe Ruse project is scheduled to be completed by the end of 2010. It is being carried out for local utility V ∓ K (Water Supply and Sewage) by German-based contractor Meyer & John and local pipe laying sub-contractor Raicommerce. The consulting engineers are Royal Haskoning of The Netherlands and EGIS BCEOM International of France.
\n\n\tRelated: Download article from Drain Trader.
\n\n\tRelated: Download article from Water and Sewer Journal.
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