Ebara Corporation (hereinafter "Ebara") has completed the installation of one of Japan's largest pump facilities at the Nikko River Estuary Drainage Pumping Station (hereinafter "the Station"), which was constructed as part of the National Owari Western Land Improvement Project (1985-1996).
Tokai Regional Agricultural Administration Office Provides large-diameter pump equipment for Nikko River Estuary Drainage Pumping Station (Aichi Prefecture)
1. Background and objectives
The Nikko River basin, which flows into Ise Bay, covers an area of approximately 300 km2, and is home to approximately one million people, with agricultural operations centered on rice cultivation. Approximately half of the area is at zero meters above sea level, making natural drainage difficult, so this station was constructed approximately 26 years ago as a key infrastructure facility. In order to ensure that the facility continues to support the stability of agricultural management in the region and to reduce the cost of maintaining and managing the facility, a large-scale overhaul of the 4,600 mm diameter large pump equipment and reducer, which had deteriorated over time, was carried out.
2.3 Overview of the construction work
The newly installed pump facility is one of the largest in Japan, with a capacity to drain 75m3 per second. We disassembled, cleaned, repaired, replaced parts, and carried out various inspections of the affected equipment at Ebara's Futtsu Plant (Chiba Prefecture).
| Construction specifications (excerpt) | ・Vertical shaft movable vane axial flow pump 4600VSKGE type Maintenance Φ4600mm x 75m3/s x 3.7m x 1 unit ・Orthogonal shaft gear reducer (with built-in fluid coupling) Maintenance |
| Construction period | June 2021 to October 2023 |
| Construction location | Umenogo area, Tobishima Village, Kaifu District, Aichi Prefecture |
3. Future developments
Ebara has the top track record in Japan for delivering pumps to storm water drainage pumping stations, and is currently carrying out many projects, including new construction as well as renewal and renovation. Ebara's long-term vision, "E-Vision 2030," aims to support "an earth-friendly society, safe and secure social infrastructure, and a world without water or food shortages," and to "contribute to the creation of a sustainable society."
By addressing key ESG issues based on its long-term vision and medium-term management plan, the Ebara Group aims to achieve the Sustainable Development Goals (SDGs) and further increase its corporate value.
The "XXX type" in the text is our model code.