The Rotork 242 range is a robust and lightweight cast iron part-turn gearbox for low torque manual applications. It suits ball, plug and butterfly valves, with torque up to 2,000 Nm (1,475 lbf.ft).


| Type | Part-turn worm gear operator (manual drive) |
| Housing Material | Cast iron |
| Torque Range | Up to 2,000 Nm (1,475 lbf.ft) |
| Ratios | 40:1 and 50:1 |
| Valve Types | Ball, plug and butterfly valves |
| Features | Worm gear / manual drive / designed using the latest analytical design tools |