The WaStop check valve installs in stormwater systems, providing immediate protection against flooding and backflow. Its unique, simple, and effective design also prevents unwanted odour and pest intrusion. This model features a flange for bolting onto a head wall, ensuring secure and fast installation. Technical specification: /* Container for specs + image */ .tech-container { display: flex; gap: 20px; align-items: flex-start; } /* Specification table column */ .tech-spec-col { width: 40%; } /* Image column */ .tech-image-col { width: 60%; text-align: center; } .tech-image-col img { max-width: 100%; height: auto; display: block; margin: 0 auto; } /* Mobile: stack table and image */ @media (max-width: 768px) { .tech-container { flex-direction: column; } .tech-spec-col, .tech-image-col { width: 100%; } .tech-image-col { margin-top: 12px; } } Name: WaStop 97 Flange Outlet NPS: NPS 4 DN: DN 100 Max. Flow Velocity: 2 m/s Weight: 1.5kg # Bolt holes (#B): 6 Bolt Circle Diameter (BCD): 210mm Dimension (D): 96mm Valve body length (L): 210mm Outer Ø (OD): 96mm Ø Bolt Holes (ØB): 9mm Max. Flow Volume: 16 l/s Max. ID Host Pipe: 106mm Min. ID Host Pipe: 98mm