Caliber Valve & Controls, Inc Field Service Testing Capability with National Board Qualified (VR) Equipment. Torquing Equipment. Field Valve Automation. Line Valve Tooling, In-Line Machines & Greasing … Field Service Testing Capability with National Board Qualified (VR) Equipment. Torquing Equipment. Field Valve Automation. Line Valve Tooling, In-Line Machines & Greasing …