Chromatic - Model DOV - Mechanical Seal, 6D Cartridge Ball Valve - Brochure

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. A wide variety of options enable the DOV to include high temperature seals, corrosion resistant coatings, live loaded stem packing and alloy materials.