The DOV valve (Double Offset Valve) extends the technology from the HCV and delivers a rotary valve with dual mechanical wedge seals. The standard DOV is a trunnion mounted design that provides a Double Isolation and Bleed without the use of seat springs or line pressure to ensure a bubble tight seal. The DOV maintains the UNIQUE top entry cartridge style for easier maintenance and fewer leak paths. The operation of a DOV is 1/4 turn that allows for more cost effective actuation and lower fugitive emissions.

• Two hemispherical wedges ensure bubble-tight shutoff for DBB and DIB II
• No seat pockets and seat springs
• Does not require pressure to seal
• Valve body is relieved externally