The TTV 80LM580 aluminium bronze fully lugged marine butterfly valves provide resistance to some the most extreme corrosive environments and applications. These may include operations for fire protection, desalination and ballast systems. Marine industry approvals include DNV, Bureau Veritas, ABS and an ISO 9001 Lloyds certified manufacturer. Actuation Valve can offer stock supply within the UK up to 12" NB DN300 for next day delivery to the majority of European countries. 3.1 material certification is available at no additional cost.