1840mm Tideflex TF-1 Valve in Conn's Water, Belfast 27 Nov 2017 Draining seven acres of roof through a 1500mm PreCast Concrete pipe into the Conn's Water river estuary, this 1840mm Tideflex TF-1 check valve has been in service since 2010. Project details Client: B... River Outfalls Sites N. Ireland backflow prevention no blockages no maintenance tidal outfall tideflex valve Read more