Storm Drain Check Valve

The duckbill concept check valve has been in use for over 100 years in waterworks and commonly accepted for use in industrial process piping systems and in waste and storm water or sewer piping systems.

Storm drain check valve.

This document explains for homes connected to a municipal sewer we discuss how to prevent sewer or storm drain backups into a building during rain or heavy flooding including the installation and use of backflow preventers backwater valves check valves and toilet drain plugs. Foremost is the tideflex check valve with several different design and installation options available that allow the valve to be installed almost anywhere. Dual check valve with atmospheric this 1 2 in. A check valve prevents seawater from backing up into drainage infrastructure to mitigate tidal flooding while still allowing the outfall to drain stormwater as usual when the tide recedes.

If the sanitary and storm water flow are combined inside the building another issue arises. Dual check valve with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. Stormwater and wastewater collection pumping stations. In the wake of hurricane matthew much of the city s storm water infrastructure was in need of repair.

Rf db rubber flex duckbill check valve brochure. Red valve also offers pinch valves for influent flow control flood control pump stations and fish hatcheries. Sewer line backup prevention. When townsville queensland australia experienced king tides the low lying areas were being flooded by water backing up through the storm drains.

Once a sewer check valve closes there is no place for rainwater to escape if there is no outlet. The series 6200 heavy duty flap gate is designed to permit the outflow of water from a pipe or a structure to a body of water while preventing backflow of the same. However the king tides in january 2005 were held in check by the installation of tideflex check valves in various low lying areas. Waterman vbg rectangular butterfly valves meet nsf 61 nsf 372 requirements september 20 2019 1 08 pm waterman ss 250 slide gates meet nsf 61 nsf 372 requirements may 9 2019 10 51 am quick links.

Repairs following hurricane matthew. It is frequently used in reservoirs tidal basins ponding basins pump stands and storm drain systems where seating heads are less than 50 feet.