Large displacement allows for retrofitting! It discharges water from hand holes and other areas.
The "DV-75" is a simple and durable backflow prevention valve for draining water. It can be adjusted in length to meet on-site needs. It is capable of discharging water from hand holes, electrical conduit trenches, and information boxes. Due to its natural permeable design, it may not be effective in areas where the groundwater level does not consistently remain below the bottom. 【Features】 - Discharges water from hand holes, electrical conduit trenches, and information boxes - High drainage capacity - Can be retrofitted - Length adjustable - Simple structure with excellent durability *For more details, please download the PDF or feel free to contact us.
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【Industry】 ■Telecommunications providers ■Handhole manufacturers *For more details, please download the PDF or feel free to contact us.
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Tōtetsu Co., Ltd., a long-established manufacturing company since the 8th year of the Taisho era 【Partial incorporation on September 1, 2024】➡ Tōtetsu Plus has started Tōtetsu Plus handles the following products: 1) Equipment for waterways and retaining walls that prevents floating destruction of waterway structures has a history of about 50 years. (Float valve type weep holes, side drainers, under drainers, pad filters, TM filters, etc.) 2) Comprehensive manufacturer of rainwater storage and utilization Aiming for the full-scale utilization of rainwater (Proposing higher quality rainwater utilization with initial rainwater cut-off products. Handling above-ground tanks and storage tanks.) 3) Backflow prevention valves for drainage Discharges water from hand holes, joint utility trenches, and information boxes, preventing groundwater intrusion. 4) The original sandbag station Leave it to us for sandbag stations. Our sandbag station is foldable, making it easy to move and transport. We meet various needs with different sizes and colors. 5) Basket mats / futon baskets New futon baskets as exterior items <Gabion Exterior Retona>








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