Backflow prevention valve for drainage in handholes, etc.
Backflow prevention valve for drainage in handholes, etc.
Backflow prevention valve for drainage in handholes, etc.
1～3 item / All 3 items
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Drainage Backflow Prevention Valve 'DV-50N/DV-75'
Discharge water from hand holes, cable ducts, and information boxes! Prevents the intrusion of groundwater.
last updated
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Drainage Backflow Prevention Valve 'DV-50N'
Post-installation and length adjustment are possible! The structure is simple and highly durable.
last updated
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Drainage Backflow Prevention Valve "DV-75"
Large displacement allows for retrofitting! It discharges water from hand holes and other areas.
last updated
