Large displacement
Maintenance possible - After installation on site, the canopy can be removed, allowing for internal cleaning and repair or replacement of the valve body (YS-100 is not maintenanceable).
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basic information
YS-100: Used in normal open channels, adjustment ponds, etc. YS-150: Extremely large drainage capacity, especially suitable for large waterways, adjustment ponds, dams, etc. F-100: Can be installed flat on the bottom plate. P-100(S): Retrofit type check valve for existing bottom plates.
Price range
P2
Delivery Time
P2
Applications/Examples of results
Waterway, adjustment pond, dam foundation
catalog（1）
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CAD data（4）
| Model number | overview | File |
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| Weep Hole Underdrainer F100 / YS150 |
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| Weep Hole Underdrainer F100 / YS150 |
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| Weep Hole Retrofit Underdrainer P100 / P100S |
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| Weep Hole Retrofit Underdrainer P100 / P100S |
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Company information
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>