The trunnion hinged ball design that we use gives increased ease of manoeuvrability, allowing for a reduction in torque and making the housing wear uniformly;
Both soft and metal to metal ball+housing kits are available;
Twin O-Ring for improved seal to the outside
Anti-static (steel spring or ball) compliant with API6D, guarantees electrical continuity between the parts (ball-stem or stem-stem tube);
Stem/Stem Tube Extension, on request;
For manual movement, depending on the circumstances, available with lever or gear or can be activated with pneumatic or electrical actuators.