Nippon Daiya Valve Co., Ltd. List of Products and Services

This document is a product catalog for ball valve products from Nihon Diaball Valve, a company engaged in the manufacturing and sales of 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 a fire, 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 wide range of options tailored to your application. [Contents] ■ Two-Way Ball Valve ■ Three-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.)

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!)

This is a stainless steel oval handle that is compact overall, allowing for installation and operation in narrow spaces. Compared to lever handles, it has a shorter length, which helps prevent accidental contact and misoperation. The handle material is stainless steel (SCS13A), which is rust-free and highly durable. 【Features】 ■ Oval shape ■ Compact overall design allows for installation and operation in narrow spaces ■ Shorter length compared to lever handles helps prevent accidental contact and misoperation ■ Like lever handles, the handle position clearly indicates the valve's open and closed state ■ Made of stainless steel (SCS13A) *For more details, please refer to the PDF document or feel free to contact us.

Our company can select and provide valves made of suitable materials and structures for various types and conditions of fluids based on extensive experimental data and rich experience, through custom production tailored to our customers' needs. To deliver products that match societal needs in response to the rapid changes of the times, we are advancing technology development and research and development through our unique system. Additionally, we conduct strict quality control based on a quality assurance system certified by ISO 9001. 【Business Content】 ■ Manufacturing and sales of valves - Diaphragm valves - Ball valves - Butterfly valves - Other types of valves *For more details, please refer to the PDF materials or feel free to contact us.

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.

This document summarizes frequently asked questions about NDV products in general, specifically regarding valves, and provides answers in a Q&A format. If you have any questions or requests regarding our products, please feel free to contact us. 【Contents (Q&A)】 ■ What types of valves does NDV handle? ■ Are there any restrictions on the installation position of the valve piping? ■ Why can multiple actuators be selected for a single nominal diameter? ■ What is the NAMUR standard? *For more details, please refer to the PDF document or feel free to contact us.

Japan Diavalve Co., Ltd. aims to be a sustainable company that balances environmental activities and economic activities amid the worsening global environmental issues. Recognizing the commitment to environmental conservation as one of the important pillars of its business activities, the company obtained ISO 14001 certification in 2008 and is working together as a whole company on environmental activities. *For more details, please refer to the PDF materials 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.)

The fire-safe type is a ball valve designed with a structure that prevents significant fluid leakage when sealing parts such as sheets or packing are burned away due to a fire. 【Main Features】 ■ When sealing parts are burned away, fluid leakage is suppressed by a metal-to-metal seal. ■ Stem blowout prevention mechanism. ■ Anti-static mechanism. ■ Selection of the drive unit according to application is possible (manual operation, pneumatic operation, flow control, and electric operation are applicable). *For more details, please refer to the catalog or feel free to contact us.

The 3-way ball valve with T/L ports and a four-sided seat can be used for switching, splitting, and mixing fluids by rotating the ball with a T or L-shaped flow path by 90 degrees. For example, by introducing this valve into a process that is currently using multiple 2-way ball valves for switching, you can rationalize piping in a cost-effective manner. Please make use of this for improving piping systems where fluid switching is necessary! <Features> - The T port allows for the selection of any combination from four switching positions by a 90-degree rotation. - L ports can also be manufactured. - Robust structure with a four-sided seat. - Selection of the drive unit according to application is possible. *For more details, please refer to the PDF document or feel free to contact us.

The Y-shaped three-way ball valve is suitable for highly abrasive fluids such as powders and slurries, as well as for high-viscosity fluids and for passing pigs and spheres used for pipeline cleaning. This product features a wide angle of 135° in its flow path, compared to the standard 90° angle of typical three-way ball valves. The wide-angle flow path design reduces the likelihood of fluid blockage compared to a 90-degree three-way valve, and helps minimize damage to the body and ball when dealing with highly abrasive fluids. Additionally, there are two types of flanges available: straight and 22.5° angled. By combining these two types of flanges in any of three locations, various patterns can be selected. 【Features】 ■ Wide-angle body shape ■ Flexible mounting orientation ■ Ideal ball design with low pressure loss ■ Excellent sealing performance ■ Stable bearing function *For more details, please download the PDF or feel free to contact us.