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Sea Water Volute

Industry: HVAC, Date: March 2006, Substrate: Admiralty bronze 200/200, Products: Chem-tect RB 300 Ceram-chem RP 500 Environment: Ambient Sea Water, Challenge: The original sea water volute pumps were suffering severe corrosion and cavitation. The pumps would require refurbishing and machining to original profile.   Volute after blasting      Impeller eye coated     External […]

300 series for Intercooler Vessel

Vessels on arrival After Abrasive Blasting and priming External coating completion Internal lining QA passed and ready for return to service OVERVIEW:    10 year old carbon steel Intercooler Vessel was exposed to high pressure steam, exceeding 150°C. The vessel was experiencing severe corrosion and metal loss. We had a short window to machine rebates […]

500 series for Water Treatment Vessel

Blast removed original coating First coat applied Close up of pinholes Internals completed OVERVIEW:    Pinholes affected the ‘wash area’ in an 800‐1000mm wide band below the tank’s centerline. Osmosis blistering resulted in crevice corrosion which was invisible at the coating application stage. These pin-holes measured 3-4 mm in depth and .5-1mm wide. Previous coating failure […]

RB 300 series for Guide Vanes

Guide Vanes prior to refurbishment Heavy scale and pitting After hot washing and abrasive blasting Completed refurbishment OVERVIEW:    30 year old cast iron Guide Vanes were suffering from severe corrosion resulting in metal and sealing face loss due to SRB causing deep pitting corrosion. We recommended rebuilding with our RB 300 series, a glass […]

RB 300 series for Cooling Water Systems

Condenser waterbox treated in workshop Tubesheet on arrival and rubber bungs installed Tubesheet on completion OVERVIEW:    The cooling water system’s tube sheets, internals and sealing faces were suffering severe pitting corrosion due to a galvanic reaction between dissimilar metals. The  Chem-tect™ RB 300 series was used to protect against sea water at temoeratures of […]