Japan-based Miura has been awarded US Coast Guard type approval for its Miura HK-(E)C ballast treatment system. The type approval is the 23rd given by the USCG and the second this month.
The treatment principle of the Miura HK-(E)C consists of filtration with UV treatment at uptake and discharge.
The approval covers models with maximum intake treatment rated capacities between 160 m3/h and 900 m3/h. As a UV system there are no salinity limitations but the system is approved for water temperatures between 0° to 50°C and with a hold time greater than 17 hours.
The system has not been verified to meet the requirements of 46 CFR Subchapter F and J and may not be installed on US flag vessels. It may be installed in hazardous locations to which it is certified on a foreign flag vessel subject to approval of the foreign administration.
There are a further seven systems from other makers with approval pending.