Product Description DescriptionHGB series valve manual device adopts worm gear and worm drive pair.and high performance needle roller bearing is installed at both ends of the worm, with compact structure. At the same time, the requirement of thrust in the process of...
Product Description Description HDM De-clutchable wormgear offers simple and reliable manual positioning of the valves, dampers and other quarter-turn devices when overriding existing pneumatic, electric or hydraulic quarter-turn actuators. All unit are suitable for...