Coastal and river outfall pipes can be partially or completely buried by sand, shingle and mud. These materials can be deposited in a single tide or change with river currents so planned clearance is of little value. Tideflex all rubber check valves are an excellent alternative to flap valves for these outfall applications.
MeasurIT were approached to provide a solution to a recurring problem with the metal flap valve on the Strype Burn outfall and we proposed a Tideflex duckbill valve as an alternative that would be able to cope with the beach shingle.
This stormwater outfall on a beach near Woodstown, Co. Waterford was proving very problematic with the existing flap valve solution unable to cope with the constant shifting of beach sand. MeasurIT proposed a solution which was installed in 2014 and is operating effectively.
The coal harbour at Dun Laoghaire dates from the 18th Century and the outfall of the culverted watercourse seemed a simple solution. However, the outfall was constantly experiencing blockages due to sand and rocks being swept into the outfall chamber. A Tideflex duckbill valve was proposed by MeasurIT as the most practical solution and this has been working without incident since 2006.
This site in Douglas, Isle of Man required a robust solution to the problems of a large culvert exiting into a chamber in the sea wall which is exposed to high seas. We proposed and provided an array of 5 Tideflex check valves, which is still showing no signs of fatigue since installation in 2000.