When the head from the drainage hole to the water level is small, the effectiveness is doubled! A check valve for retaining walls using a float ball.
The "YS50" is a float-type weep hole that ensures a strong and reliable seal on the valve seat due to the buoyancy of a special elastic float, eliminating concerns about water leakage. During dry conditions, the float completely detaches from the valve seat, allowing groundwater to be freely discharged. Since the valve seat is oriented downward, there is no risk of mud settling and hardening near the valve seat. Additionally, the operating components are built into the drainage pipe, preventing damage from impacts caused by flowing materials and theft due to tampering. 【Features】 ■ Reliable valve operation ■ No negative pressure during groundwater discharge ■ No mud deposition or adhesion ■ No risk of damage or theft ■ The elasticity and strength of the float and valve seat are stable with respect to temperature *For more details, please refer to the PDF document or feel free to contact us.
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【Other Features】 ■ When the head from the drainage hole to the water level is small, the effectiveness is doubled. ■ The valve operates in a fully open or closed state at all times. ■ High weather resistance due to no influence from ultraviolet rays. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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CAD data（2）
| Model number | overview | File |
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| Weep Hole YS50 |
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| Weep Hole YS50 |
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Company information
Established in 1919, our long-standing manufacturing company, Tōtetsu Plus Co., Ltd., will start on September 1, 2024, following our spin-off. More details can be found in the "News" section of our website. Our equipment for waterway and retaining wall structures, designed to prevent floating destruction, has a history of about 50 years. (Including float valve-type weep holes, side drainers, under drainers, pad filters, TM filters, etc.) We are a comprehensive manufacturer of rainwater storage and utilization systems. We are committed not only to runoff control but also to the full utilization of rainwater. (We propose higher quality rainwater use with initial rainwater cut-off products and handle above-ground tanks and storage basins.) Backflow prevention valves for water drainage in handholes discharge water from handholes, joint utility trenches, and information boxes, preventing groundwater intrusion. The origin of the sandbag station is our company, Tōtetsu Co., Ltd. You can rely on us for all your sandbag station needs. Our sandbag stations are foldable, making them easy to move and transport. We cater to various needs, including different sizes and colors.