Get your copy of "Hydraulic Ball Valve (HBV)"
The Caledyne Hydraulic Ball Valve (HBV) delivers reliable isolation between the upper and lower completion and enables interventionless opening and closing via hydraulic control lines, saving rig time and reducing OPEX. When sufficient lubricator height is not available, the HBV can also isolate the well and create a lubricator section, allowing longer strings to be installed.
Caledyne-HBV-slsh.pdf