Japan Diavalve Co., Ltd. "Product Guide" Catalog
Introducing high-quality diaphragm valves, ball valves, and butterfly valves!
This catalog is a comprehensive catalog of Daiya Valve Co., Ltd., which mainly manufactures and sells valves. It features a wide range of products that can be used in various industrial fields, including the diaphragm valve "Wear Type Diaphragm Valve," which has an arc-shaped seat (wear) in the center of the body, as well as "Bio-Clean Valves" and "Ball Valves." Please consider using our high-performance, safe, and environmentally friendly products. [Contents] ■ Wear Type Diaphragm Valve ■ Bio-Clean Valve ■ Straight Type Diaphragm Valve ■ Valves for Nuclear Power Plants ■ Rubber-Lined Check Valves, etc. *For more details, please refer to the catalog or feel free to contact us. (We also have a Chinese version available!)
basic information
【Featured Products】 ■ Wear Type Diaphragm Valves ・ PO1400 Series ・ HO1400 Series, etc. ■ Bio-Clean Valves ・ BPO1400 Series ・ BQL400 Series ■ Straight Type Diaphragm Valves ・ PN1500 Series ・ HN1500 Series, etc. ■ Valves for Nuclear Power Plants ・ A400 Series ・ ABO1400 Series ■ Rubber-Lined Check Valves ・ B900 Series, etc. *For more details, please refer to the catalog or feel free to contact us. (We have a Chinese version available for those who need it!)
Price range
Delivery Time
Applications/Examples of results
【Applications】 ■ Chemicals, Environmental & Water Treatment, Steel, Pharmaceuticals, Power Generation, etc. *For more details, please refer to the catalog or feel free to contact us. (We have a Chinese version available if needed!)
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News about this product（52）
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New Year's greetings
I would like to extend my respectful New Year's greetings. I sincerely thank you for your exceptional support during the past year. I kindly ask for your continued patronage this year as well. We have resumed normal operations since January 5th. We will respond to inquiries received during the holiday period in due course. Thank you for your patience and understanding.
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Notice of Year-End and New Year Holidays
Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for the year-end and New Year holidays during the following period. Closure Period: December 28, 2024 (Saturday) to January 5, 2025 (Sunday) Inquiries made through this website or via email will be addressed sequentially starting from January 6 (Monday) after the closure period. We apologize for any inconvenience this may cause and appreciate your understanding.
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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 Shipping Suspension Period Due to Interim Financial Statement Inventory Count
Thank you very much for your continued support. We would like to inform you that our company will suspend product shipping operations for inventory purposes due to the interim financial closing on the following dates. We apologize for any inconvenience this may cause and appreciate your understanding. Shipping suspension period: Tuesday, September 30, 2025.
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Notice of Summer Collective Vacation for Fiscal Year 2025
Our company will have a company-wide holiday during the period below. We apologize for any inconvenience this may cause and appreciate your understanding. Summer holiday period: Friday, August 15, 2025 Inquiries received during this holiday period will be addressed sequentially starting from Monday, August 18.
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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.