#Japan #Tokyo #NOK Corporation #Sewer Exhibition #Nisso Giken

NOK Corporation and Nisso Giken Team Up for Sewage Exhibition 2026 in Tokyo

NOK Corporation, based in Minato-ku, Tokyo, and Nisso Giken, located in Kawagoe, Saitama, are joining forces to exhibit at the upcoming Sewage Exhibition 2026 in Tokyo. This collaboration marks the second consecutive year for these companies to share an exhibition space, highlighting their commitment to innovation in public infrastructure maintenance.

Scheduled from August 4 to 7, 2026, at the Tokyo Big Sight in Koto-ku, this significant event will present a variety of new products aimed at improving safety and environmental considerations in sewer maintenance. Among these, NOK will introduce its newly developed ammonia and hydrogen sulfide detection rubber, which will be unveiled to the public for the first time.

Tackling Challenges in Aging Sewer Infrastructure

The degradation of sewer infrastructure presents a myriad of issues, particularly concerning the management of invisible gases such as hydrogen sulfide and ammonia, which can lead to unpleasant smells and pipeline corrosion. The primary goal of NOK’s new detection rubber is to offer a visual solution for monitoring these gases, thereby boosting inspection efficiency and enhancing safety in hazardous environments.

Key Features of NOK’s Exhibit:

• - Ammonia and Hydrogen Sulfide Detection Rubber (New Development)

This specialized rubber undergoes a color change when exposed to ammonia or hydrogen sulfide, making it easy to visualize the presence of these gases. Specifically, it turns a deep blue when it encounters ammonia and black in the presence of hydrogen sulfide. The installation process is incredibly straightforward—there's no need for a power source or maintenance, just adhesive or placement suffices to indicate the gas type and quantity.

• - Recycled Rubber Coasters with Local Manhole Designs

These coasters utilize scrap rubber generated during the production process, showcasing NOK’s dedication to sustainable practices. Designed with local manhole graphics, these coasters can serve as municipal merchandise or promotional items, blending functionality with creativity.

• - Hydrogen Sulfide Detection Rubber

This rubber reacts visibly to hydrogen sulfide, changing color permanently upon contact, thus tracking gas emission history with ease. Like the ammonia detection rubber, it requires no power supply and is easily hung for convenience. It is particularly useful for preliminary surveys in environments where water exposure is a factor, making it ideal for extended investigations lasting from hours to weeks.

Nisso Giken's Contributions

Nisso Giken will also display a range of innovative products that complement NOK's offerings:

• - Hydrogen Sulfide Indicators

These indicators are designed for quick, short-term hydrogen sulfide assessments, with results achievable within 10–30 minutes. By combining this with NOK’s long-term detection rubber, users can effectively manage gas monitoring in various contexts.

• - Oil Detection Indicators (Low-Yuma Mark®)

This product provides a means to visualize oil leaks through color changes, facilitating preventative measures against equipment failures without the need for power or special tools.

• - Thermal Labels (Thermo Label®)

These temperature monitoring materials change color when a specific temperature threshold is crossed, allowing for easy monitoring of temperature history in various industrial settings, from electrical maintenance to manufacturing processes.

Exhibition Details

• - Organized by: Japan Sewage Works Association
• - Dates: August 4–7, 2026, from 10:00 AM to 5:00 PM (first day opens at 10:30 AM, last day closes at 4:00 PM)
• - Location: Tokyo Big Sight, West Exhibition Hall 1F, Koto-ku, Ariake 3-11-1
• - NOK Booth Number: AT-206
• - Access: 7 minutes from Kokusai-tenjijo Station on the Rinkai Line; 3 minutes from Tokyo Big Sight Station on the Yurikamome Line
• - Event URL: Sewage Exhibition
• - NOK Exhibition Site URL: NOK Exhibit Page

NOK Corporation is committed to enhancing public safety and comfort through essential core manufacturing. With a workforce of approximately 37,000 across 14 countries and regions, the company leverages its foundational research to develop high-quality products that cater to various industries, including automotive, electronics, healthcare, robotics, and aerospace.