Flat Bottom Duckbill Check Valve with Clamp

DescriptionThis type  has become the preferred  Check Valve configuration for outfalls. Designed for in-structure and end-of-pipe installations, This type  features a flat bottom and flared top. This allows the valve to be installed at a lower overall elevation than other configurations, with less bottom clearance required. This is especially important in low-lying areas where maintaining as much driving head is critical, or where silt, sand and debris might tend to collect beneath the valve.This type  is ideal for manhole applications, such as junction boxes, diversion chambers and interceptors, where the invert of the pipe is close to the floor of the vault. These vaults are designed to maximize the available gravity head, thus the invert pipe is as close to the floor as possible. This type  allows installation in such structures and is easily retrofitted to existing structures, often replacing failed flapgates. There is no need to break up the concrete floor to provide bottom clearance.This type  installs by slipping over the end of an exposed piece of pipe, and is fastened with compression clamps. The inside diameter of the product's cuff is fabricated to exactly match the outside diameter of the pipe.FeaturesReliable backflow preventionMinimal bottom clearance required100% elastomer construction eliminates maintenanceWill not corrode, warp or freeze open or shut1"-2" cracking pressure, low headlossCurved bill enhances sealing around debrisCustom built for each application based on pressure and flow conditionsAvailable in diameters from 4" (100mm) to 102" (2550mm)Materials Of ConstructionDrilling patterns:ANSI Class 125/150#DIN PN6, PN10, PN16CustomCompression clamps:316 Stainless Steel (standard)304 Stainless SteelSpecial alloys available/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1