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
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