Information on our product and service support contact.
Accurate implementation of "preventive maintenance" reduces risks and prevents troubles before they occur!
At Japan Diaball Valve, we provide reliable, safe, and high-quality after-sales service. Our employees actually visit the site to conduct inspections and repairs while observing the conditions on-site. *Please feel free to contact us, as there may be cases where on-site inspections and repairs are difficult, such as with large-diameter valves. We support our users through five sales bases across the country and partner companies. For preventive maintenance and upkeep, please consult with us. We offer free materials featuring case studies available for download in PDF format. Please take a look. 【Features】 ■ Supporting the long-term maintenance and management of user facilities ■ Providing various maintenance-related services for our products based on our unique know-how accumulated over many years and the assurance of manufacturer quality ■ Accurately executing service operations entrusted to us by users, based on over half a century of rich experience and solid technical skills.
basic information
【Benefits of Preventive Maintenance】 ■ Reduction of the risk of unexpected accidents ■ Extension of equipment lifespan and averaging of maintenance costs ■ Ensuring the operational rate of production lines ■ Stabilization of equipment and production quality *For more details, please refer to the PDF document.
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Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
catalog（2）
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News about this product（7）
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Notice of Closure Due to Founding Anniversary
Dear Sir/Madam, I hope this message finds you in good health and spirits. I would like to express my sincere gratitude for your continued support. We regret to inform you that our company will be closed all day on Friday, October 24, 2025, in observance of our foundation anniversary. We apologize for any inconvenience this may cause and appreciate your understanding.
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Notice of Closure for Founding Anniversary
Dear Sir/Madam, I hope this message finds you well. I would like to express my sincere gratitude for your continued support. We regret to inform you that our company will be closed all day on Tuesday, October 1, 2024, in observance of our founding anniversary. We apologize for any inconvenience this may cause and appreciate your understanding.
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Notice of the establishment of the "Product Service Support Desk"
We are pleased to announce the establishment of the "Product Service Support Desk" at Japan Diaball Valve. We provide reliable, safe, and high-quality after-sales service. Our employees will visit the site in person to conduct inspections and repairs while observing the conditions on-site. *Please feel free to contact us, as there may be cases where on-site inspections and repairs are difficult, such as with large-diameter valves. We will support our users through five sales bases across the country and our partner companies. For preventive maintenance and upkeep, please consult with us! 【Features of the Support Desk】 ■ Supporting the long-term maintenance and management of user equipment ■ Providing various maintenance-related services for our products based on years of accumulated unique know-how and reliable manufacturer quality ■ Accurately carrying out service operations entrusted by users based on over half a century of rich experience and solid technical skills.
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Notice of Revision for the "Diaphragm Valve Catalog" (Case Studies and FAQ Collection Also Introduced!!)
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.
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Notice of Closure Due to Founding Anniversary
Thank you very much for your continued support and patronage. We sincerely apologize for the inconvenience, but our company will be closed all day on October 2, 2023 (Monday) in observance of our founding anniversary. We appreciate your understanding and cooperation in this matter.
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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 fundamental 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 providing these products across a wide range of industrial sectors, 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, 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 sectors, from industries such as pharmaceuticals, chemicals, semiconductors, and steel manufacturing to public sectors like 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.