OW1500 ball joints are designed for 1500 psig at 650º F. They are recommended for installation on oil field wellheads to compensate for the riser expansion, solar panels to accommodate for panel rotation and other high pressure applications. Standard OW1500 ball joints are available 2″ nominal pipe size. For other sizes and pressure ratings refer to Hyspan Barco ASME Class Ball Joints.
The ball, casing and retainer are made from wrought steel. The spherical surface of the ball is chrome plated with two mils of chrome consisting of one mil of hard chrome and one mil of crack free chrome. The plating is protected by a coating of baked-on molybdenum disulfide lubricant.
The sealing system consists of ductile iron inner and outer seals (Number 21) with injected graphite flakes with synthetic oil carrier, Grafoil® Flexible Graphite.