Check valve for tunnel waterways! 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 pre-drilled wall hole of approximately 50mm, sealed for water tightness with an O-ring, and the surface is finished with sealing material. 【Features】 ○ Option to choose with or without valve ○ Adjustable length For more details, please contact us or download the catalog.
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basic information
Utilization of Weep Holes for Tunnels Since the external water pressure acting on the tunnel has a significant impact on the stability of the tunnel structure, it is necessary to promptly alleviate it by installing weep holes (without valves) in the tunnel arch section. Additionally, when installing weep holes below the planned water level in the tunnel, weep holes with valves are used. For more details, please contact us or download the catalog.
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catalog（1）
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CAD data（1）
| Model number | overview | File |
|---|---|---|
| GT-25 | 【Product Name】Tunnel Weep Hole【Product Number】GT【Size】φ25 *Please do not modify the drawings. |
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Company information
Chubu Beautification Corporation has been involved in the development, production, and sales of water-related products since its establishment in 1966, contributing to the advancement of agriculture and water supply and sewage sectors nationwide. As we enter the 21st century, we are increasingly aware of the rapid changes in social conditions and the growing impact of changes in the natural environment surrounding people. We strive to be a good advisor and a collaborative partner in the fields of water and civil engineering, focusing on creative actions and technological improvements. We consider it our mission to contribute to the creation of a safe and comfortable living environment for the people in the region. We look to the future of people and the environment and deliver reliable products. We appreciate your continued support.