We have renewed our company brochure. It now provides clearer information about our business activities, product information, and technologies and initiatives. Please take a look.

We have started distributing the revised version of the catalog listed below. We hope it will be useful for selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇ Ball Valves: In addition to the standard fire-safe type, you can choose from a wide range of options tailored to your needs, including multi-port valves and V-port valves. ■ Japanese text "No.B302-13" ◇ Butterfly Valves: We offer butterfly valves that excel in sealing performance and flow control. ■ Japanese text "No.C302-05" ◇ Sanitary Related Valves: We provide sanitary specification valves that are ideal for manufacturing equipment in pharmaceuticals, food, and semiconductors. ■ English text "No.DE117-04" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also have a FAQ section available, so please check it out in the related catalogs below.

We have started distributing the revised version of the catalog listed below. We hope it will be useful for your daily operations in selecting valves. We would be grateful if you could gain a deeper understanding of our products. ◇ NDV Diaphragm Valves: This catalog features a variety of products including manual valves, air-operated ON-OFF valves, and electric valves. Additionally, it includes technical materials such as dimension and material selection tables at the end, which will assist in valve selection. ■ Japanese version "No.D303-12" ◇ NDV Sanitary Related Valves: This is a 'comprehensive catalog' featuring sanitary specification valves suitable for manufacturing equipment in pharmaceuticals, food, and semiconductors. We introduce a wide range of applications, including the "Bio-Clean Diaphragm Valve Series," which maximizes the features of diaphragm valves, and sanitary butterfly valves for pharmaceutical containers. ■ Japanese version "No.D117-09" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. We also have a FAQ section available, so please check it out in the related catalogs below.

We have started distributing the revised version of the catalog below. We hope it will be useful for selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇NDV Product Guide: This is our comprehensive catalog. It introduces high-quality diaphragm valves, ball valves, and butterfly valves. ■ Bilingual "U100-40" ◇Butterfly Valves: We handle butterfly valves that excel in sealing and flow control. ■ English "No.CE302-02" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we have a FAQ section available, so please check it out in the related catalogs below.

We have started distributing the revised version of the catalog listed below. We hope it will be helpful for you in selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇ Ball Valves: In addition to the standard fire-safe type, you can choose from a wide range of options tailored to your needs, including multi-port valves and V-port valves. ■ Japanese version "No.B302-12" ■ English version "No.BE302-06" ◇ Butterfly Valves: We offer butterfly valves that excel in sealing performance and flow control. ■ Japanese version "No.C302-04" ◇ Sanitary Related Valves: We provide sanitary specification valves that are ideal for manufacturing equipment in pharmaceuticals, food, and semiconductors. ■ English version "No.DE117-03" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also have a FAQ section available, so please check it out in the related catalogs below.

We have revised the comprehensive catalog for "Sanitary Related Valves" and published "D117-08." For more details, please refer to the related catalog. *If you would like to receive a catalog, you can apply through the inquiry page. If you have any questions or concerns, please feel free to contact us.

We have revised the "Diaphragm Valve" catalog and have started distributing "No. D303-09." For those who may not be familiar with diaphragm valves, we have made an effort to edit the content to provide necessary product information in a clearer, more accessible, and visually appealing format. We hope this will be helpful in your daily operations when selecting diaphragm valves, and we would be grateful if you could gain a deeper understanding of our products. Additionally, we offer the electronic catalog on our website. It can be viewed on various devices, including PCs, iPads, iPhones, and Android devices, so please feel free to check it out on your tablet as well. *If you would like to receive a physical catalog, you can apply through the inquiry page. If you have any questions or concerns, please do not hesitate to contact us. We also have case studies and a FAQ collection available. Please check them out along with the related catalogs below.

In response to customers’ requests, our catalog includes information from basic knowledge to technical data about our valves to facilitate valve selection. If you have any requests regarding our products and catalogs, please feel free to contact us. ■Main Contents - Standard specifications of products (Structure and features, valve specifications, main dimensions, actuator selection table, etc.) - Introduction of related products - Important notes for handling *For more details, please download the catalog or contact us.

We have revised the "Ball Valve" catalog and have started distributing "No. B302-11." For those who may not be very familiar with ball valves, we have made an effort to present the necessary product information in a clearer, more accessible, and more visually appealing format. We hope this will be helpful in selecting ball valves for your daily operations. We would be grateful if you could gain a better understanding of our products. *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also offer an English catalog and a FAQ collection, which you can view in the related catalogs below.

We have revised the comprehensive catalog for "Sanitary-related Valves" and published "D117-07." For more details, please refer to the related catalog. *If you would like to request a catalog, you can apply through the inquiry page. If you have any questions or concerns, please feel free to contact us.

We have published "Ball Valve FAQ: Frequently Asked Questions" in the category "Valve FAQ" on the NDV special site. You can access it via the link below, so please take a look. *For more details, please refer to the PDF document or feel free to contact us.

We have revised the "Diaphragm Valve" catalog and have begun distributing "No. D303-11." For those who may not be familiar with diaphragm valves, we have made an effort to present the necessary product information in a clearer, more accessible, and more visually appealing format. We hope this will be helpful in selecting diaphragm valves for your daily operations. We would be grateful if you could gain a deeper understanding of our products. *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also have a collection of case studies and FAQs available, so please check the related catalogs below.

We have revised the NDV "Product Information" catalog (U100-39). For more details, please refer to the related catalog.

We have revised our "Sanitary Valve" comprehensive catalog. For more details, please refer to the related catalog.

In response to customers’ requests, in our catalogues, we provided from basic knowledge to technical data of our valves to facilitate valve selection. If you have any requests regarding our products and catalogs, please feel free to contact us. ■Main Contents - Standard specifications of products (structure and features, valve specifications, key dimensions, actuator selection table, etc.) - Introduction of related products - Important notes for handling *For more details, please download the catalog or contact us.

We have updated the English version catalog of the "Two-Stage Open/Close Rotary Air Operated Drive Unit, Two-Stage Open/Close Ball Valve," handled by Japan Diavalve Co., Ltd. This product features a mechanism that allows for mechanical two-step operation in the opening and closing of the valve by installing a sub-cylinder to our standard rotary air operated drive unit (90-degree rotation, Scotch yoke type, W piston). It enables the flow of a fixed amount of fluid through staged operation and has a proven track record for capacity control in quantitative shipping lines and water hammer prevention. Please download the catalog and take a look. 【Product Features】 ■ Installation of a sub-cylinder to our standard rotary air operated drive unit ■ Mechanism for mechanical two-step operation in the opening and closing of the valve ■ Ability to flow a fixed amount of fluid through staged operation ■ Proven track record for capacity control in quantitative shipping lines and water hammer prevention *For more details, please refer to the PDF document or feel free to contact us. *You can download the English version catalog.

We have revised the "Diaphragm Valve" catalog and have started distributing "No. D303-08." For those who may not be familiar with diaphragm valves, we have made an effort to edit the catalog to present the necessary product information in a clearer, more accessible, and more visually appealing layout. We hope this will be helpful in selecting diaphragm valves for your daily operations. We would be grateful if you could gain a deeper understanding of our products. Additionally, we offer an electronic version of the catalog on our website. It can be viewed on various devices, including PCs, iPads, iPhones, and Android devices, so please feel free to check it out on your tablet as well. *If you would like to receive a physical copy of the catalog, you can apply through the inquiry page. If you have any questions or concerns, please do not hesitate to contact us. We also have case studies and a FAQ section available. Please check them out in the related catalogs below.

We have revised the "Diaphragm Valve" catalog and have begun distributing "No. D303-09." We have numerous achievements across a wide range of industrial fields, including chemicals, environmental and water treatment, steel, pharmaceuticals, and power generation. What is a diaphragm valve? We provide clear explanations from the basic structure and mechanism. Additionally, technical materials are included! There are selection materials based on extensive performance data that allow for valve selection tailored to customer needs. 【Technical Material Contents】 - Flange dimensions - Special specifications (nameplate, painting, photography, specific inspection) - Representation of product codes - Material selection table - Drive unit selection table This catalog introduces various products we handle. You can master the basics of diaphragm valves with this one book. Please download it and check the contents!