If you have any concerns regarding the maintenance, regeneration, or new design of butterfly stop valves (manufactured by Nippon Casting Co., Ltd.), please feel free to consult us.
In 2003, we received a business transfer from the Valve Division of Japan Casting Co., Ltd. and took over the maintenance operations. Our products are used as the main valves for crude oil piping, berths, and crude oil tanks across the country. This butterfly valve features a special rotating mechanism that allows for tight shut-off with a metal seat. While a standard butterfly valve only rotates the valve body approximately 90 degrees, this stop valve moves the valve body further in the seat direction after the rotation, ensuring a firm seal against the seat. The body and valve materials are made of cast steel (WCB, SCPH2, etc.), and the seat area features metal-to-metal contact (Stellite, 17-4PH, etc.). Many of the products already installed have been in use for over 30 years. Due to the high quality of the materials and machining precision originally used, performing an overhaul to regenerate the seat area and replacing parts can restore functionality and further extend the lifespan. We also offer new designs tailored to specifications. We can design the drive mechanism, whether electric or manual (including gear types), according to customer specifications. Please feel free to contact us.
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basic information
Maintenance, servicing, overhaul, new production, etc.
Price information
Please feel free to contact us.
Delivery Time
Applications/Examples of results
We use it for important piping such as seabass tank main valves, oil piping, crude oil piping, and petroleum product piping, among others.
Detailed information
Company information
Manufacturing, repairing, and creating valves Nakamura Valve Manufacturing Co., Ltd. has been consistently engaged in valve manufacturing since its establishment in 1947 (Showa 22), walking alongside the development of Japan's petrochemical industry. We are approaching our 80th anniversary. We sincerely thank you for your warm support. Through the technology accumulated over many years of valve manufacturing, we contribute to the maintenance and development of the industrial infrastructure as a behind-the-scenes supporter. About 80% of our sales come from our own products, while the rest consists of assisting other companies in the same industry and valve maintenance. While many manufacturers are switching to overseas materials, we have continued to prioritize domestic materials for our products since our founding, particularly selecting high-quality cast steel materials for pressure-resistant components to ensure stable quality. Even if you require special materials that are difficult to obtain domestically, we can procure the requested materials in consultation with our customers. We manufacture and sell on a made-to-order basis, but we also have a small stock of materials for products that receive frequent inquiries. Please contact us if you need something urgently. If you have any concerns regarding valves, please feel free to consult with us.
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