1～11 item / All 11 items
Utilizing the action of a float, a flexible and sensitive operability without a fulcrum.
- Equipped with a check valve - Maintenanceable - No metal used - Internal structure of the valve body
Utilizing the action of a float, it sensitively responds to slight fluctuations in water level and reduces groundwater pressure.
- The structure is designed to minimize direct exposure of the valve body to ultraviolet rays, resulting in excellent durability. - The upper filter prevents the intrusion of sediment and protects the valve body. - Maintenance and valve body replacement are possible, and no metal is used.
Synthetic resin! Check valve for groundwater and infiltrating water.
The Weep Hole "G type, GQF type" can be used on both the side wall and the bottom plate. After the main body is installed, the valve can be added later, making installation easy. The length of the main body (using VP pipe) can be adjusted to match the wall thickness. The socket part of the main body has ribs, which enhances adhesion to concrete and water-stopping performance. The steel plate inside the rubber valve prevents warping of the valve body and maintains water-stopping effectiveness. 【Features】 ○ Can be used for both side wall and bottom plate ○ High weather resistance and corrosion resistance ○ High pressure resistance ○ High water tightness For more details, please contact us or download the catalog.
Can be installed on existing drainage pipes! Check valve for existing drainage pipes.
The "GI type" is a weep hole that can be easily installed on existing drainage pipes. It prevents underground infiltration from groundwater and spring water. The valve structure is simple, ensuring no failures, and the valve body is made of synthetic rubber, which has excellent heat resistance, cold resistance, and weather resistance. The steel plate inside the rubber valve prevents warping of the valve body and maintains the sealing effect. 【Features】 ○ Easy adhesive installation ○ High heat, cold, and corrosion resistance ○ High pressure resistance ○ High water tightness For more details, please contact us or download the catalog.
Weep holes for waterproof sheets! Check valve to prevent underground infiltration from groundwater and spring water.
The "GP1 type" weep hole for sheets is a check valve that is installed on waterproof sheets. It is composed of a stainless steel cover, a retaining ring, a rubber valve, and a screw-type body (made of synthetic resin), making it robust and free from failures due to its simple structure. Its compact and lightweight design allows for easy direct installation on the sheet. By using it in conjunction with drain pipes or air vent pipes, additional safety can be achieved. Furthermore, the weep hole for sheets ensures the safety of the embankment while significantly reducing construction labor and costs. 【Features】 - Simple structure with no failures - Can be installed on waterproof sheets up to 4mm thick - Slim design, with minimal visibility of irregularities after installation on pond waterproof sheets - Can be easily installed on waterproof sheets without the use of special tools - Made of synthetic resin and stainless steel, allowing for semi-permanent use For more details, please contact us or download the catalog.
Easily attachable to steel sheet piles! A check valve that prevents underground infiltration from groundwater and spring water.
The "GS type" weep hole for steel sheet piles is a dedicated backflow prevention valve designed to prevent disasters caused by the phenomenon of moisture accumulation in the backfill area. The steel sheet pile method used for waterway revetments and similar structures in soft ground areas has seen increased utilization in recent years. However, the weep holes or drain pipes used in this method are still not commonly employed, and the reduction of back pressure is not being addressed. By treating the water in the backfill area, back pressure can be alleviated, leading to greater stability of the ground. 【Features】 - Easily installable from the front of the steel sheet pile - Reduction of back pressure through water treatment in the backfill area For more details, please contact us or download the catalog.
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.
A check valve to reduce uplift pressure in rivers, adjustment ponds, and waterways! Prevents underground infiltration of groundwater and spring water.
The "GD type and GDL type" weep holes for the base are check valves for drainage methods. They have a simple structure, so there are no failures. Made of synthetic resin, they do not rust and can be used semi-permanently. The steel plate inside the rubber valve prevents warping of the valve body and maintains the water-stopping effect. The valve is inserted after construction, so it is not damaged. *GD type: Comes with a resin screen to protect the rubber valve. 【Features】 ○ High weather resistance and corrosion resistance ○ High pressure resistance ○ High water tightness ○ Easy repair of rubber valves ○ Easy installation For more details, please contact us or download the catalog.
Made of synthetic resin! Weep hole with a stainless steel mesh plate on the valve side.
The "GF type" is a screen-equipped weep hole used to reduce uplift pressure in rivers, retention basins, and waterways. It can also be used in the bottom section where mud tends to accumulate, making it ideal for waterways and retention basins. The three-layer separation filter structure minimizes the impact of sediment and debris. It can be selectively used depending on the site conditions. 【Features】 ○ Easy cleaning of waterways ○ Ideal for waterways and retention basins ○ Three-layer separation filter For more details, please contact us or download the catalog.
Check valve for tunnel waterways and similar applications! Prevents underground infiltration of groundwater and spring water.
The tunnel weep hole "GT type" (without valve) is integrated with a drainage pipe filter with an inner diameter of 26mm and an outer diameter of 32mm, using PVC pipe VP-25 (L = lining length). This product is inserted through a wall hole that has been pre-bored to approximately 50mm, sealed for water tightness with an O-ring, and the surface is finished with a sealing agent. 【Features】 ○ Option to choose with or without valve ○ Adjustable length For more details, please contact us or download the catalog.
[For those struggling with weep hole wear] The weep holes handled by Tōtetsu can be maintained, extending the lifespan of the product.
・With check valve ・Maintenance possible ・No metal used ・Internal structure of the valve body
