NDV 2-stage open/close air-operated drive unit 2-stage open/close ball valve

It is possible to flow a certain amount of fluid with a stepwise operation! There are many proven results in filling equipment and more!

We would like to introduce our two-stage opening and closing ball valve equipped with a pneumatic actuator that operates in a two-stage manner. By installing a sub-cylinder on our standard rotary pneumatic actuator (90-degree rotation, Scotch yoke type, W piston), it allows for "mechanical setting of arbitrary opening degrees from 0 to 3% without the need for a positioner." This mechanism enables mechanical two-step operation for the opening and closing of the valve. It is possible to flow a constant amount of fluid through staged operation, and it has a proven track record for capacity control in quantitative shipping lines and for water hammer mitigation. 【Features】 ■ Installation of a sub-cylinder on our standard rotary pneumatic actuator 　◎ Mechanical setting of arbitrary opening degrees from 0 to 3% without the need for a positioner ■ Mechanical two-step operation for the opening and closing of the valve ■ Ability to flow a constant amount of fluid through staged operation ■ Proven track record for flow control in quantitative shipping lines and water hammer mitigation *For more details, please refer to the catalog or feel free to contact us. (The English version of the catalog can be downloaded from the catalog page of the special website below.)

valve