CIVACON "Sure Seal" and "Knappco" Dry Bulk Transport Products CIVACON manufacture a wide range of specialist equipment specifically developed for the challenges of transporting dry bulk products.   For products such as industrial access ports, manholes, hatch covers, fill covers, pressure vacuum hatches, valves, weld rings and fill covers, Knappco and SureSeal are the brands of choice for keeping a lid on hazardous bulk commodities while they're being handled or transported.   Knappco and SureSeal products are precision engineered and manufactured to meet the requirements of a wide range of industries and applications.   For more than 50 years, dry bulk tank builders and operators have trusted Knappco and SureSeal.   Please email or call us to discuss your specific needs. Tanker Solutions is proud to represent Knappco and SureSeal in New Zealand Visit the Civacon web site.