Marine Type Approvals held for these valves: American Bureau of Shipping, Bureau Veritas, DNV, Germanischer Lloyd, Lloyds Register. Overflow and control valves made of Stainless steel. Suitable for liquids, steam and gaseous media. Gastight version of spring housing. Available models: 418tGFO gastight version for gases and liquids without lifting device. Available seals: NBR, FKM, PTFE. Ranges of adjustment: 0.2 – 1.2 bar, 1.2 – 3 bar, 2.0 – 12 bar, 12 – 30 bar. Valves can be delivered unset within a pressure range or set and sealed at the factory.