CHARACTERISTICS AND ADVANTAGES OF HOLLOW BALL Quality Guarantee 100% no leaks and pinholes. Stable Materials better resistance to alkalis & acids. Unbeatable Lightness 50-70% lighter than conventional solid balls. Torque reduced by 20-40% effectively improve the performance of actuator, lot less malfunctions & breakdowns of actuators in longtime operation. Easier Installation easier assembling process; fewer damages during installation. Labor Safety safer working environment by using lighter balls. Cost Savings greatly reduced material, transportation & maintenance costs. Prolonged PTFE lifetime less damage to of PTFE seats & seals caused by the weight of the ball.