Worm gear valve actuator HOW/MPR series

manualquarter-turnfor butterfly valves

Hand Operated Worm Gearbox Designed to suit manual applications, the HOW/MPR worm gear operators are quarter-turn devices intended for the operation of ball, plug and butterfly valves. The HOW/MPR gear operators include low lead angle gearing designed to be inherently self-locking. Torque range from 39,000 Nm (28,765 lbf.ft) to 264,000 Nm (194,716 lbf.ft). 9 sizes. Ratios from 1229:1 to 7171:1. - Carefully chosen ratios to meet manual rim effort requirements - Protected steel input shaft - Removable output sleeve - Ductile iron gearcase - Angular contact bearings supporting worm shaft - Repositionable baseplate facility Options include: - High and low temperatures - Stainless steel input shaft - All types of environment - Limit switches - Fixed and flexible extensions - Chain wheels