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PROGUARD CN 200 for spiral pipe systems of francis turbines–water-power plant at river Louros/Gree
Recently, 3 huge spiral pipe systems of Francis turbines for the water-power plant of the river Louros in Greece were built. For durable protection against corrosion, abrasion and erosion our premium coating PROGUARD CN 200 was applied.
By: Ceramic Polymer GmbH / W.T.S.-Ludwig Ltd
For long-term corrosion protection of water turbines the coating has to provide outstanding physical properties. In this case, the main focus is on a supremely high abrasion resistance, since river water contains high particle loads. Sand, which is carried by the stream may induce immense abrasion in the turbine.
The product PROGUARD CN 200 offers beside excellent corrosion resistance a high-grade abrasion protection. Thus, the coating is perfectly suitable for this scope of application.
PROGUARD CN 200 is applied by airless spraying process directly on the prepared substrate – generally only one layer is enough for ideal corrosion and erosion protection. In this project a thickness of 500 µm was applied.
Moreover, the smooth surface texture of PROGUARD CN 200 facilitates an optimization of water flow conditions and therefore an increase of the hydraulic efficiency. Of course the coating system is also qualified for the repair of water-power components.
Spiral pipes: Total diameter of 3.60 m, diameter inlet 1.40 m
Height of waterfall: 70 m
Water pressure: 7 bar
Power of turbines: 2.9 MW each (3 turbines are used)
Coating product: Proguard CN 200
Beside the excellent physical properties, the solvent-free coating system PROGUARD CN 200 features a very simple treatment. After blast cleaning, the product is applied directly onto the steel by common airless spraying method.
The ceramic filled PROGUARD CN 200 facilitates a uniform and immaculate coat. One layer of 500 µm already contributes essentially to a long-lasting service life of the spiral pipes.
Ceramic Polymer GmbH