The category "Valve FAQ <Frequently Asked Questions>" on the NDV special site has been updated!

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 suitable for 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 "Bioclean Valves" and "Ball Valves." Please consider using our high-performance, safe, and environmentally friendly products. [Contents] ■ Wear Type Diaphragm Valve ■ Bioclean 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 for those who need it!)

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A large number of ball valves, including fire-safe types and V-port valves, are featured!!

This document is a product catalog for ball valve products from Japan Diavalve, which manufactures and sells valves. It includes the "Fire Safe Type Ball Valve," which can suppress fluid leakage when sealing parts such as seats and packing are burned in fires, as well as the "High Pressure and Large Diameter Ball Valve," commonly used for general processes and high-pressure sludge, and the "Jacketed Ball Valve," which has a double structure with a jacket on the outside of the main body. You can choose from a rich lineup according to your application. [Contents] ■ 2-Way Ball Valve ■ 3-Way Ball Valve ■ V-Port Valve ■ Pneumatic Operated Valve ■ Electric Operated Valve ■ Special Purpose Ball Valves ■ Handling Precautions *For more details, please refer to the PDF document or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)

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A new product with IP65 equivalent water resistance and a 360-degree easily visible indicator.

We are pleased to introduce a new product from Japan Diavalve. 【Features】 ■ 360-degree visible indicator Adopts a dome-shaped transparent cover for excellent visibility. You can check the valve's open and closed status from various angles. ■ Compact body with high torque A lightweight and compact drive unit made from aluminum alloy and engineering plastic. ■ Drip-proof performance (equivalent to IP65) With drip-proof performance that prevents rainwater intrusion and condensation, it is safe and secure for outdoor use. *For more details, please download the catalog or contact us. (We have English and Chinese versions of the catalog available upon request!)

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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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Our company will be exhibiting at the "Green Cross Exhibition 2026 in Sapporo." Duration: September 16 (Wednesday) to 18 (Friday), 2026 - 16th (Wednesday) 10:00 AM to 5:00 PM - 17th (Thursday) 9:00 AM to 5:00 PM - 18th (Friday) 9:00 AM to 3:00 PM Venue: Sapporo City Sports Exchange Facility Tsudome (Sapporo City, Hokkaido) We look forward to your visit.

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

We have introduced Majesta Fragrance to a nightclub in Yokosuka City, Kanagawa Prefecture, creating a fragrant atmosphere throughout the floor. The model we have introduced is the "MF-02S," which costs 8,800 yen per month (tax included). The scent you have chosen this time is "Sabon," a high-quality soap fragrance reminiscent of luxury hotel amenities. Its clean and transparent refreshing scent spreads throughout the entire floor, warmly welcoming customers who visit. By introducing scent design to the nightclub, we can enhance the extraordinary experience and create a memorable space that lingers not only visually but also through "scent." Majesta Fragrance offers a rental service for commercial aroma diffusers, and we also provide a free trial installation. If you are interested in scent design, please feel free to contact us.

In the July 8, 2026 issue of Air Conditioning Times, we featured "Flex Chamber" and "SS Premier" in a duct special.

SS Premier has won an award at the 24th Environmental and Equipment Design Awards. This award is organized by the General Incorporated Association of Architectural Equipment Comprehensive Association and recognizes outstanding efforts in environmental and equipment design. We will continue to strive for further improvements in quality and technology.