4" PVC Backwater Valve 4" - BWV4

Meet the 4" PVC Backwater Valve 4" - BWV4, a trusted backflow protection solution from NDS. Designed to safeguard basements, crawlspaces, and drainage lines, this normally closed valve stops sewer and storm-water backups before they enter your home or business. With its 4" hub-to-hub connections and durable PVC-DWV construction, it delivers reliable protection in a compact, easy-to-install package. SKU BWV4 and MFG Part Number 475P ensure you’ll find the exact match you need for your project.

Benefits

• Protects property from backflow and sewer backups, reducing flood risk and costly repairs.
• Normally closed operation provides immediate, automatic backflow prevention as sewer conditions worsen.
• Durable PVC-DWV construction resists corrosion and chemical exposure typical in drainage environments.
• 4" hub-to-hub (Hub x Hub) design simplifies installation into standard drainage systems.
• White PVC body offers a clean, unobtrusive look and long-lasting performance in many setups.
• From a reputable brand (NDS), with clear part identification (MFG Part Number: 475P) for easy ordering and maintenance.

Key features

• Product: 4" PVC Backwater Valve, a gravity-flow drainage check valve designed to prevent backflow.
• Size: 4 inches, suitable for standard residential and commercial drainage lines.
• Connections: Hub x Hub (4" hubs) for straightforward integration into existing PVC-DWV piping.
• Material: PVC-DWV, providing strong chemical resistance and durability in drainage environments.
• Operation: Normally Closed, ensuring backflow protection as soon as pressure conditions reverse.
• Color/Finish: White valve body, compatible with typical PVC piping systems.
• Brand: NDS, a trusted manufacturer of drainage and backflow protection products.
• Model/SKU: BWV4, with MFG Part Number 475P and SKU BWV4 for precise ordering.
• Application: Drainage check valve designed for gravity-flow installations, ideal for preventing backwater in residential or light-commercial systems.