Details
selection of pneumatic actuators, have been identified in the valve torque to increase the safety value, water vapor and non lubricating liquid medium security value by 25%; slurry liquid medium non lubricated increase 30% security value; dry gas medium adding 40% security value of non lubricated; granular powder material medium with non lubricated gas transmission security value by 60%; for clean, low frictionLubricating medium security value by 20% (the security value is recommended, as the company theory for reference only).