The KVD 450 flap valve installs in piping systems to prevent backflow, such as at outlets to channels or pump stations. Its 15° inclined flap with a robust rubber hinge provides low hydraulic resistance in flow direction while ensuring reliable closure in case of backflow. Made of corrosion-resistant materials, it requires minimal maintenance and allows straightforward 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: KVD 450 NPS: NPS/OD 18 DN: DN/OD 450 Opening Pressure: 59 mmHO Pressure: 5 mHO Weight: 27kg # Bolt holes (#B): 20- Bolt Circle Diameter (BCD): 565mm Height center opening (H2): 307.5mm Total Height (Ht): 627mm Valve body length (L): 586mm Length Open (L2): 935mm Outer Ø (OD): 450mm Width (W): 615mm Ø Bolt Holes (ØB): 26mm