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

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!)

We handle "valves exclusively for the discharge of tablets and powder granules." With a shape and structure that minimizes tablet residue, we offer a "damper" for safe tablet discharge, and a "butterfly valve" designed for lightweight construction, making installation and removal easy. The main components are made of stainless steel and have a buff-polished finish, ensuring no adhesion of tablets or powder granules and excellent cleanability. 【Features】 <Damper> - Structure that does not crush tablets when opening the damper - Equipped with a stopper at the opening and closing position to securely maintain the position <Butterfly Valve> - Lightweight design allows for easy installation and removal from containers and piping - Adopts a clamp method for quick assembly and disassembly, making cleaning easy *For more details, please refer to the PDF materials or feel free to contact us. (The English version of the catalog can be downloaded from the catalog page of the special website below.)

This document is a "comprehensive catalog" featuring sanitary specification valves suitable for manufacturing equipment in pharmaceuticals, food, semiconductors, and more. It includes the "Bio-Clean Diaphragm Valve Series," which maximizes the features of diaphragm valves, as well as sanitary butterfly valves for pharmaceutical containers. Customers can select valves tailored to their applications and the fluids they use. [Contents] ■ Bio-Clean Diaphragm Valves ■ Dead Space Countermeasure Products ■ Special Valves and Related Products ■ Sanitary Valves and Cleanroom Related Products ■ Technical Documentation *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.)

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.

Features 1) This product is designed with a compact structure for the valve body, eliminating dead spaces (such as pockets and liquid traps). 2) Notable examples include a self-draining type that enhances liquid trap prevention, a sampling valve for fluid sample collection, a three-way valve that allows fluid switching and mixing with a single body, and a tank bottom valve that achieves high stirring efficiency and complete discharge without residue. 【Lineup (Excerpt)】 ■ Self-draining type ■ Sampling valve: P type ■ Three-way valve: K type ■ Tank bottom valve: T type *For more details, please refer to catalog pages 17 to 21 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.)

**Features** - Fluid sampling can be done without dead space (such as in pockets or liquid pools). - It can be directly mounted in the piping, is compact, and has a structure that prevents fluid retention in the valve. - In addition to sample collection, it can be widely used for branching, merging (mixing), introducing cleaning water or sterilizing steam, and discharging. **Specifications (Excerpt)** - Main body material: SUS316L - Applicable nominal diameter (DN): Standard combinations of main pipe and valve: 15 to 50 (other ranges available as options) - Operation method: Both manual and pneumatic operation methods are applicable. *For more details, please refer to the PDF document or feel free to contact us.*

**Features** - It can be directly installed in the piping, is compact, and has a structure that prevents fluid residue in the valve. - It can be widely used for applications such as branching, merging (mixing liquids), introducing cleaning water, and discharging sterilization steam. **Specifications (Excerpt)** - Main body material: SUS316L - Applicable nominal diameter (DN): Standard combination of main pipe and valve: 15 to 50 (other ranges available as options) - Operation method: Both manual and pneumatic operation methods are applicable. *For more details, please refer to the catalog (P.20) or feel free to contact us. (An English version is available upon request!)*

【Features】 ● The structure is directly welded to the bottom of the tank, resulting in excellent stirring efficiency. ● There are no contact parts such as gland packing, stem, seat, or gasket; the opening and closing are done solely by the diaphragm, allowing for smooth discharge of the tank contents with minimal residue. Contamination caused by valve components is extremely low, and cleaning and sterilization can be easily and reliably performed. ● The applicable nominal diameters range from DN15 to 100 (4S), making it suitable for use with small containers of about 10 liters to medium tanks of about 10,000 liters. 【Specifications (Excerpt)】 ● Main body material: SUS316L ● Applicable nominal diameter (DN): 15 to 100 ● Operation method: Manual operation and pneumatic operation methods are both applicable. *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.)

■NDV Dead Space Countermeasure Products These are products designed with a valve body structure that eliminates dead space (such as pockets and liquid accumulation) and is compact. Representative examples include sampling valves for collecting fluid samples, three-way valves that allow for fluid switching and mixing with a single body, and tank bottom valves that achieve high stirring efficiency and complete discharge without residue. 【Do you have any of these concerns?】 ☑ The narrow and small drain area at the bottom of the tank is difficult to stir, creating dead space... ☑ During liquid discharge or when closing the valve, liquid gets trapped in the gaps of the valve mechanism... ☑ Large dead legs in piping increase the required piping space... 【Features】 ● Sampling Valve Type P: Enables fluid sampling without dead space! ● Three-Way Valve Type K: Allows for switching and mixing of flow paths without dead space! ● Tank Bottom Valve Type T: A dedicated valve for tank bottoms that excels in stirring efficiency without dead space! ● Self-Drain Type F: A valve that further enhances the effect of preventing liquid accumulation! ■ This product will be exhibited at the "27th Interphex Japan." *For more details, please refer to the catalog or feel free to contact us.

■NDV Dead Space Countermeasure Products These are products designed with a compact structure that eliminates dead spaces (such as pockets and liquid traps) in the valve body. They can be used as "contamination countermeasures" in pharmaceuticals, food, and bioprocesses. 【Are you facing these issues?】 ☑ Fluid enters the gaps inside the valve during fluid passage or when closing the valve... ☑ There are problems with large dead legs in the piping, such as liquid traps and steam sterilization effectiveness... ☑ You want to review complex piping layouts and eliminate fluid contamination risks... 【Features】 ● Sampling Valve Type P: - Enables fluid sampling without dead space! ● Three-Way Valve Type K: - Allows switching and mixing of flow paths with no dead space using a single body! ● Tank Bottom Valve Type T: - A valve specifically for tank bottoms that achieves high stirring efficiency and eliminates residual discharge! ● Self-Drain Type F: - A valve that further enhances the effect of preventing liquid traps! ■ This product will be exhibited at the "26th Interphex Japan." *For more details, please refer to the catalog or feel free to contact us.

■What is the NDV V-Port Valve? It is a ball valve that incorporates a V-cut ball. The opening side of the hemispherical ball is cut in a V shape, which effectively cuts through fibrous materials and solids. It can accommodate abrasive fluids, high-viscosity fluids, and more. It also exhibits excellent performance in heat resistance, wear resistance, and flow regulation. 【Are you facing any of these issues?】 ☑ Malfunction due to clogging in the pocket area... ☑ Malfunction caused by solids mixed in the liquid... ☑ Severe wear on the seat due to slurry fluids... 【Features】 ● V-Cut Ball: The opening side of the ball is cut in a V shape, making it effective for cutting fibrous materials and solids! ● Pocketless Structure: The valve seat is only on the primary side, reducing troubles caused by clogging of solids in the fluid! ● Excellent Heat and Wear Resistance: Capable of sealing from vacuum to high pressure without being affected by temperature and pressure differences! ● Superior Flow Regulation Function: High rangeability and excellent flow regulation performance! 【Main Applications】 Fibrous fluids, slurries, powders, pellets, high-viscosity fluids, etc. *For more details, please refer to the catalog or feel free to contact us.

■NDV Dead Space Countermeasure Products These are products designed with a valve body structure that eliminates dead spaces (such as pockets and liquid traps) and is compact. Representative examples include sampling valves for fluid sample collection, three-way valves that allow for fluid switching and mixing with a single body, and tank bottom valves that achieve high stirring efficiency and complete discharge without residue. 【Are you facing any of these issues?】 ☑ The narrow and small drain area at the bottom of the tank is difficult to stir, creating dead space... ☑ During liquid discharge or when closing the valve, liquid enters the gaps in the valve mechanism... ☑ Large dead legs in piping increase the required piping space... 【Features】 ● Sampling Valve Type P: Enables fluid sampling without dead space! ● Three-Way Valve Type K: Allows for switching and mixing of flow paths without dead space! ● Tank Bottom Valve Type T: A dedicated valve for tank bottoms that excels in stirring efficiency without dead space! ● Self-Drain Type F: A valve that further enhances the effect of preventing liquid traps! *For more details, please refer to the catalog or feel free to contact us.

Starting from July 2025, we began accepting orders for the new product series "EX-Bioclean Diaphragm Valve." This product is a next-generation diaphragm valve developed from the existing "Bioclean Diaphragm Valve" series designed for pharmaceutical and related equipment, featuring a new sealing structure. While maximizing the characteristics of the diaphragm valve, such as "a structure that does not contaminate fluids" and "excellent cleanability," we have revamped the sealing structure to better meet user needs and further enhance product performance. 【Features】 ■ Improved airtightness! - New sealing structure that maintains high airtightness ■ Improved maintainability! - Enhanced workability during diaphragm assembly (shortened assembly time, elimination of tightening and alignment tasks) ■ Ensured compatibility! - Same performance in the wetted parts as conventional products - Equivalent durability and seat sealing performance to conventional products - Compatible with existing valve bodies ■ Safety performance and quality! - Can accommodate emergency tightening - Applies safety technology proven in domestic nuclear power plants *For more details, please refer to the catalog or feel free to contact us.