
Yj Series Part-Turn Manual Valve Worm Gearbox for Ball Valves. High Mechanical Efficiency: Features high mechanical efficiency with steady operating performance and new design. Wide Torque Range: Max output torque ranges from 300 N.m to 4000 N.m across 9 models. Flexible Handwheel Options: Handwheel size can be chosen according to specific customer requirements. Durable Ductile Iron Material: Constructed from ductile iron for robust performance in industrial applications. Standard ISO5211 Flange: Flange connecting to valve strictly follows ISO5211 standard for compatibility. High Protection Grade: Standard IP65 protection with optional IP67 and IP68 ratings available. Full Customization Support: Offers full customization, flexible customization, and minor customization options.