{"title":"KVD FLAP VALVES","description":"","products":[{"product_id":"kvd_200-dn-od-200","title":"KVD_200 - DN\/OD 200","description":"\u003cp\u003eThe KVD 200–630 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.\u003c\/p\u003e\n\u003c!-- ns-spec:start --\u003e\u003cdiv class=\"ns-spec\" style=\"margin-top:28px;border-top:1px solid #e6e9ee;padding-top:22px\"\u003e\n\u003ch3 style=\"font-size:20px;color:#0d1b2a;margin:0 0 14px\"\u003eTechnical specification\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;font-size:14.5px;line-height:1.5\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eNominal diameter\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eDN\/OD 200 (NPS\/OD 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOpening Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e48 mm H₂O (1.9 inh2o)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003ePressure\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e5 m H₂O (16.4 fth2o)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003e# Bolt holes (#B)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eBolt Circle Diameter (BCD)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e295 mm (11.6 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eHeight center opening (H2)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e170 mm (6.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eTotal Height (Ht)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e331 mm (13 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eValve body length (L)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e319 mm (12.6 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eLength Open (L2)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e459 mm (18.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOuter Ø (OD)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e200 mm (7.9 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e340 mm (13.4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eØ Bolt Holes (ØB)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e22 mm (0.9 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlange bolt pattern\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eHole Pattern Acc. to EN1092-1:2018, PN10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e-25° C - +40° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWatertightness\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eDIN 19569-4 table no. 1 Class 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eValve body\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003ePolyethylene (PE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlap\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003ePolyethylene (PE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlap seal\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eEPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top:20px;display:flex;flex-wrap:wrap;gap:10px\"\u003e\n\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/tech-spec_kvd_flap_valve_200-630_en-gb.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Product sheet (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/kvd_200\/tech-spec_kvd_200_en-gb.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Technical specification (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/kvd_200\/kvd_200_en.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Dimensional drawing (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!-- ns-spec:end --\u003e","brand":"Nord Seal","offers":[{"title":"Default Title","offer_id":47822565310678,"sku":null,"price":1205.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/5446\/2422\/files\/Untitleddesign-2026-02-07T184001.743.png?v=1770471609"},{"product_id":"kvd_450-dn-od-450","title":"KVD_450 - DN\/OD 450","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c!-- ns-spec:start --\u003e\u003cdiv class=\"ns-spec\" style=\"margin-top:28px;border-top:1px solid #e6e9ee;padding-top:22px\"\u003e\n\u003ch3 style=\"font-size:20px;color:#0d1b2a;margin:0 0 14px\"\u003eTechnical specification\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;font-size:14.5px;line-height:1.5\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eNominal diameter\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eDN\/OD 450 (NPS\/OD 18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOpening Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e59 mm H₂O (2.3 inh2o)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003ePressure\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e5 m H₂O (16.4 fth2o)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e27 kg (59.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003e# Bolt holes (#B)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eBolt Circle Diameter (BCD)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e565 mm (22.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eHeight center opening (H2)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e307.5 mm (12.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eTotal Height (Ht)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e627 mm (24.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eValve body length (L)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e586 mm (23.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eLength Open (L2)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e935 mm (36.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOuter Ø (OD)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e450 mm (17.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e615 mm (24.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eØ Bolt Holes (ØB)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e26 mm (1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlange bolt pattern\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eHole Pattern Acc. to ISO 2084-1974 (E), PN10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003e-25° C - +40° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eWatertightness\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eDIN 19569-4 table no. 1 Class 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eValve body\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003ePolyethylene (PE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlap\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003ePolyethylene (PE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 14px 6px 0;color:#5f6e80;white-space:nowrap\"\u003eFlap seal\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;font-weight:600;color:#0d1b2a\"\u003eEPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top:20px;display:flex;flex-wrap:wrap;gap:10px\"\u003e\n\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/tech-spec_kvd_flap_valve_200-630_en-gb.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Product sheet (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/kvd_450\/tech-spec_kvd_450_en-gb.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Technical specification (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/files.wapro.io\/flap_gate\/kvd_450\/kvd_450_en.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1.5px solid #019ee3;border-radius:8px;color:#019ee3;font-weight:600;text-decoration:none;font-size:14px\"\u003e↓ Dimensional drawing (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c!-- ns-spec:end --\u003e","brand":"Nord Seal","offers":[{"title":"Default Title","offer_id":47822584611030,"sku":null,"price":2960.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/5446\/2422\/files\/Untitleddesign-2026-02-07T184001.743.png?v=1770471609"}],"url":"https:\/\/nordseal.com\/collections\/kvd-flapvalves.oembed","provider":"NordSeal","version":"1.0","type":"link"}