2 I GRUNDFOS COATING Ceramic coatings protect internal at-risk areas To ensure reliable operation and long product life, Grundfos offers the NB/NBG and NK/NKG range of multi-purpose endsuction pumps with dedicated coatings. The highly advanced ceramic coatings are strong alternatives to meet the challenges faced by common metal surfaces. The Grundfos range of ceramic coatings provides superior performance against erosion, corrosion, chemical attack and abrasion, where metal surfaces would normally be degraded. This offers protection in industrial applications, where components and structures are often under attack, which can result in compromised plant reliability and safety, and lost profits. A Grundfos coating solution protects the internal, wetted parts of your pump in your industrial environment. The ceramic coatings can be applied to all material versions of NB, NBG, NK and NKG pumps, such as cast iron and 1.4408 and 1.4517 stainless steel types. If a pump is worn out, it may also be possible to rebuild the pump internals. In addition to the internal coating on wetted parts, all coated pumps have two layers of external paint, providing a corrosion category of C4-M. Coating extends the area of liquid resistance and is price-attractive Ceramic coatings add to the already very extensive NB/NK product range and fill a gap between cast iron and stainless steel when comparing price and resistance against the pumped liquid/media. Ceramic coatings provide resistance where even the highest stainless steel grade must give up. RCR Ceramic coatings 100 CI 1.4408 1.4517 100 RCR = Relative corrosion resistance CI = Cast Iron 1.4408 = Standard stainless steel 1.4517 = Duplex stainless steel Indexed price COATING PROPERTIES • 100 % surface preparation before coating • Special advanced coating polymers • Smoothness inside pump during pump lifetime • Reinforcement with silicon carbide and aluminium oxide • Very low permeability through coating film • High temperature resistance towards liquid/media • High wear resistance towards liquid/media • High chemical resistance towards liquid/media • Extensive Quality Control during coating process • Long-term references from the industry • Experienced and skilled coating applicator => YOUR BENEFITS • A pplication resistance to the pumped liquid/media • L ong lasting reliable solution • N o corrosion or erosion inside pump • B etter efficiency and performance of the pump • N o downtime in application • L ower service costs for pump application • R esistant to pitting corrosion • N o flange corrosion • N o corrosion products in pumped liquid/media
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