NDV 2-stage opening and closing rotary air-operated drive unit 2-stage opening and closing ball valve
It is possible to flow a certain amount of fluid in a stepwise manner! There are many proven results in filling equipment and more!
We would like to introduce a two-stage opening and closing ball valve equipped with a two-stage rotary air-operated drive unit handled by Nippon Diavalve Co., Ltd. By installing a sub-cylinder in our standard rotary air-operated drive unit (90-degree rotation, Scotch yoke type, W piston), the valve can mechanically perform a two-step operation during opening and closing. This allows for a controlled flow of a certain amount of fluid in a staged manner, and it has a proven track record for capacity control in quantitative shipping lines and water hammer prevention. 【Features】 ■ Installation of a sub-cylinder in our standard rotary air-operated drive unit ■ Mechanically capable of two-step operation during valve opening and closing ■ Allows for a controlled flow of a certain amount of fluid in a staged manner ■ Proven track record for capacity control in quantitative shipping lines and water hammer prevention *For more details, please refer to the catalog or feel free to contact us. (An English version is available upon request!)
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basic information
【Intermediate Opening Degree Setting Operation】 ■ Two stages to fully open / Two stages to fully close ■ One stage to fully open / Two stages to fully close ■ Two stages to fully open / One stage to fully close *For more details, please refer to the PDF document or feel free to contact us. (The English version of the catalog can be downloaded from the catalog page of the special website below.)
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[Usage] ■ Used in combination with flow meters and volumetric meters for precise loading when loading tank trucks, rental vehicles, and tankers. *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.)
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Since its founding in 1955, our company has made customer satisfaction (CS) — that is, "providing products that satisfy our customers" — the cornerstone of our management policy. For over 60 years, we have supplied products such as diaphragm valves, ball valves, and butterfly valves tailored to our customers' needs. By offering these products across a wide range of industries, from pharmaceuticals, chemicals, semiconductors, and steel manufacturing to public sectors like nuclear and thermal power generation, water supply and sewage, and waste treatment facilities, we take pride in contributing to the development of economic activities and the creation and maintenance of an environmentally sustainable society. Moving forward, we will continue to respond to our customers' requests and strive to be of service to society, with all employees making every effort. 【Main Areas of Service】 We provide a wide range of valves across various industries, including pharmaceuticals, chemicals, semiconductors, and steel manufacturing, as well as in public sectors such as nuclear and thermal power generation, water supply and sewage, and waste treatment facilities. ■ ISO 9001 and 14001 Certification Obtained *For more details, please download our company brochure or contact us.
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