Patapata-kun" Backflow Stopper "One Way Series
A lineup of band-type one-way valves and drain one-way gates!
The "One-Way Series" is a backflow stopper that prevents external water from flowing back during floods or high tides. We offer a lineup including the lightweight and corrosion-resistant "Sewer One-Way Valve," the double-hinge type "Simple One-Way Valve," and the "Drain One-Way Gate." We also provide the "Tobichirazu Board," a secondary pipe inside the manhole that can be easily adjusted to fit the site dimensions. 【Sewer One-Way Valve (Type N1) Features】 ■ Prevents external water from flowing back during floods or high tides ■ Lightweight, corrosion-resistant, and watertight structure ■ Usable for drainage pipes with diameters from φ75 to φ600 ■ Recommended water depth within 2.0m (from the bottom of the pipe) *For more details, please refer to the PDF materials or feel free to contact us.
- Company：日本ステップ工業
- Price：Other
