Flap Valves HDPE - (High Density Polyethylene) Flap Valves - Flood Prevention

Flap Valves prevent water backup through storm pipes and discharge pipes.

Flap Valves prevent rising water from entering a storm drain system. The units are heavy duty but less weight than metal flap valves and are virtually maintenance free.

Flap valve material construction is HDPE with 316L stainless steel. Corrosion protection for long life operations.

Download cut sheet Introduction To HDPE Flap Valves

HDPE Flap valves are designed for use in water control systems, they protection infrastructure from rising sea levels and storm damage. They prevent back flow into discharge pipes and protect low level lands and city structures.

Standard flap valves may be covered by one meter water colum on a continuous bases, five meter of pressing head for 72 hours in the event of flood conditions. Higher withstanding pressures are available.

Flap valves HDPE units have very low cracking heads, doors open for one way flow with just a few mm of deferential pressure.

Mounting types available:

Flap Valves Wall mounted: flap valve bolt mounted to a flat wall to prevent reverse flow.

Flap Valves Flange mounted: flap valve for attachment to a flanged at the end of a pipe.

Flap Valves Tidal Water mount: flap valve door is mounted on a 10 degree angle.

Flap Valves Continious Underwater mount: flap valve always water covered, 10 degree angle.

Flap Valves Pressure Lines: flap valves for pump applications.

Inline Penstocks In pipe placement flange to flange.

Typical applications include discharges to tidal waters, ditches, manholes, culverts, reservoirs, ponds basins and Ponds. Flap Valves are check valves that allow outflow of water while preventing back flow.

Flap Valves can be as simple as a small 4" (100 mm) HDPE flap or much larger Flap Valves for ocean out falls. Out falls not equipped with back flow protection, can have a devastating effect in the event of heavy rainfalls, storms and higher than normal tides.

HDPE flap valves require very low opening pressure. When water on the face side of the flap valve rises above water on the back side, the watertight door closes automatically to prevent back flow.

Flap Valves may be installed above the waterline or below the waterline.

HDPE (High Density Polyethylene) Flap Valves, are lightweight, corrosion resistant non-return check valves for the prevention of flood damage.

General Installation Instructions Wall Mount HDPE Flap Valves

Available for all American and International pipe sizes
For all pipe materials: PVC - Ductile Iron - Concrete - HDPE

Experienced staff can provide solution guidance and recommendations

Westatlantic Tech Corp, Contact or 902 455 4455



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Flap Valves, Automatic Levellers, Inline Penstocks, Penstocks, Sluice Gates, Tilting Gates, Floating Weirs, Float Valves, Fences, Flood Gate Doors, Stop Logs, HDPE and stainless steel, 316L: USA and Canada; USA: Louisiana, LA, Alabama, AL, Mississippi, MS, Texas, TX, Ohio, Illinois, PA, South Carolina, SC, North Carolina NC, Wisconsin, WI, Milwaukee. Canada: Alberta, AB; Edmonton, Fort McMurray Calgary, Fort Nelson, Grande Prairie, Lioydminster, Red Deer, Lethbridge, British Colombia, BC; Kelowna, Vancouver, Prince Rupert, Kitimat, Terrace, Fort St John. Saskatchewan, SK; Regina, Saskatoon, Prince Albert, Estevan, Swift Current. Manitoba MB; Winnipeg, Thompson. Ontario, ON; Oakville, Toronto, London, Ottawa, Hamilton, Mississauga. Quebec: QC; Montreal, Quebec City, Trois-Rieviers, Val-d'or, Chebougamau, Sherbrooke. New Brunswick, NB, Nova Scotia, Newfoundland Labrador, NL. Including Saint John, Moncton, Halifax, Sydney, St John's,