All Roto-Disc Co. valves are now standard with its exclusive direct-drive system. This breakthrough design eliminates taper pins both inside and outside the valve and connects the dome and the actuator directly through the shaft. Actuator couplings and several other parts are eliminated and removal and re-insertion of the shafts are greatly simplified. This robust design allows additional torque to be applied to power the valve through hard or sticky material without concern for taper pin shearing. Roto-Disc Co. is based in Milford, OH.