KM-style trough weep hole "KMVM type"
A weep hole used in reverse, which drains water from inside the structure to the outside, preventing outside groundwater from entering the structure!
The KM-type weep hole is a drainage pipe equipped with a backflow prevention valve. Traditionally, it has been used to drain excessive groundwater into drainage channels. The 'KMVM type' has reversed the installation direction of the valve compared to conventional designs, allowing water within the structure to drain outside while preventing external groundwater from entering the structure. This is a KM-type weep hole for troughs. 【Nominal Diameter Lineup】 ■φ40 ■φ50 ■φ75 ■φ100 *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Instructions】 1. Install the weep hole in the concrete with the rubber valve facing downwards. 2. To prevent debris from entering, fit the cup filter onto the top of the weep hole. The cup filter can be replaced; however, the type for diameter 40 is a fixed screen type, while the type for diameter 100 is a replaceable screen filter. 3. Add a sand and gravel layer on the outflow side of the weep hole to ensure smooth drainage. *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.
catalog（5）
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CAD data（4）
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