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Quarter turn Gearbox QW is full worm gearbox, which can operate 360 degree for quarter turn application, mainly used for butterfly valve, ball valve and damper, manual or motorized operation is optional. The torque is available up to 11250Nm, QW range ratio is from 51:1 to 442:1.The gearbox stanard is IP67, work temperature -20℃ to 80℃, when need special condition application, welcome contact us.
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Greatork IP68 gearbox is designed on the basic of standard gearbox, the seal part has enhenced for IP68 application, it's mainly used for butterfly valve, ball valve and damper, can work under water for long time, the torque max can reach 400,000Nm when connect with electric actuator, gearbox ratio from 40:1 to 5000:1. Worm gearbox with lever or without is optional.
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The indication gearbox mainly used for gate valve, globe valve and penstock, help client observe valve position. Manual or motorized operation optional. With this mechanical pointer, client can easily know valve position even when actuator power fails.The gearbox water tight class is IP67, working temeprature is -20℃ to 80℃, but IP68 or lower temperature is optional according requirement and quantity, welcome contact us for detail.
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The manual spur gearbox is mainly used for pipe network valves, like gate valve, globe valve and penstock, it can installed at any angle, hand wheel size can design according client's project. Generally the ratio is 3, 3.5, 4.8, can be customized according operation time requirement, need any information, welcome contact us.
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