Storm Water Drainage

Weirflex - Adjustable Water Valve for Combined Sewers: The Weirflex from Red Valve is designed specifically to meet the needs of sormwater and combined sewer systems. Acting as an adjustable weir, the valve is infinitely adjustable form full-port opening to a 98% closure allowing flow rates of incoming stormwater or discharged effluent to be controlled.

Weirflx Series Valve - Full Brochure (Large File - May Take a Few Minutes to Download)

Sleeve Technology

Weirflex 75B CSO Manually Adjustable Weir Valve for Combined Sewer

Weirflex 70 CSO Manually Adjustable Weir Valve for Combined Sewer

Weirflex 75 CSO Manually Adjustable Weir Valve for Combined Sewer

Weirflex 75E CSO Electrically Adjustable Weir Valve for Combined Sewer

Weirflex 53 CSO Electrically Adjustable Weir Valve for Combined Sewer - Open Frame

First Flush Valve: A simple solution to storm water overflow. Your storm water line serves as s storage reservoir. "First Flush" is the initial storm water flow during a heavy rain storm. The heaviest downpour of most rain storms occurs during the first ten minutes. The First Flush Valve slows the initial downpour and holds back 25% to 30% of the initial high volume of rain water. Each First Flush Valve can be custom engineered to match your system flow demands.

First Flush Valve - Full Brochure (Large File - May Take a Few Minutes to Download)

EPA Report on Stormwater First Flush Pollution

Stormwater Technology

First Flush Valve Sizes

First Flush Valve Designs

First Flush Valve Open Area vs. Height Above Invert - Graph

First Flush Valve -Drawings - 48" X96" Flat Faced Stormwater Flow Control

First Flush Valve -Drawings - 8" Valve - 2CFS at 3 Feet of Head Above Invert

First Flush Valve -Drawings - 24" OD First Flush Valve

First Flush Valve -Drawings - 48" First Flush Valve

First Flush Valve -Drawings - 24" First Flush Valve

First Flush Valve -Drawings - 24" First Flush Valve

First Flush Valve -Drawings - 48" Flat Faced Stormwater Flow Control Valve- First Flush Valve

TF1 Tideflex Check Valve: The Curved Bill Tideflex uses the same construction for the body of the valve as the traditional Tideflex, but has a bill that is thinner and more resilient. The bill is formed to a 180-degree curve that returns to the closed position even more naturally than a straight bill. The curved bill increases the sealing area and allows the valve to form a tighter seal around solids that are typical in storm water, effluent and CSO outfalls. The Curved Bill is now standard on all Tideflex end-of-pipe products.

Tideflex Technologies - Full Brochure (Large File - May Take a Few Minutes to Download)

Curved Bill Design is Approved for Use on Water Tank Overflow – Texas Commission on Environmental Quality

TF2 Curved Bill Tideflex Check Valve: The Curved Bill Tideflex Check Valve is a revolutionary design for Backflow Prevention. It offers low cracking pressure to eliminate standing water and very low headloss that is not affected by rust, corrosion or lack of lubrication. The valve is slid onto the pipe and held in place with steel or stainless steel band clamps, eliminating flanging costs. Tideflex TF-2 valves are constructed with a curved bill standard.

Tideflex Technologies - Full Brochure (Large File - May Take a Few Minutes to Download)

Curved Bill Design is Approved for Use on Water Tank Overflow – Texas Commission on Environmental Quality

Series 35/35-1Check Valve: In some applications and installations, a slip-over pipe check valve (TF-1) is not feasible because of an existing flange in the piping system or an existing flange cemented in the outfall piping system vault. In these cases, the Series 35 Check Valve is the solution.

Tideflex Technologies - Full Brochure (Large File - May Take a Few Minutes to Download)

Curved Bill Design is Approved for Use on Water Tank Overflow – Texas Commission on Environmental Quality