The ORBIT Ascending Stem Ball Valves have a unique tilt-and-turn design for fast, low-torque operation and long-term, reliable performance in applications when zero leakage and frequent operation are demanded. The tilt-and-turn action eliminates seal abrasion, which is the major cause of seat wear in conventional ball, gate and plug valves. Some applications are flow meter isolation, flow lines, bypass and blockage, emergency shutdown, product segregation, suction discharge and isolation, among others. Maintenance can be from the top of the valve without the need for disassembly of the installation.
This legacy of innovation began in 1912, when Alfred Heggem founded The Oilwell Improvements Company of Tulsa. Heggem’s groundbreaking ball valve seating principle, patented in 1935, was considered by many at the time to be the first major advancement for valves in half a century. This patent is the forerunner to all ball valves today. Nearly 80 years later, the same engineering technology still is used to safeguard against seat rubbing—a leading factor for why ORBIT valves are world-renowned for high integrity and long service life.
