1. This is a flap valve Martin Childs Limited supplied and installed in York on Holgate Beck. They also designed and built the Davit arm which is removable and was stored in the pumping station adjacent to this outfall.
2. This is a double hung flap valve situated in Newport South Wales. This flap valve prevents flooding from the tides in the river Usk. This flap also incorporated an otter pass to allow passage of otters through the structure.
3. An HDPE flap valve on a drainage outfall in York. This flap was supplied with a removable Davit for maintenance.
4. These are two flap valves on the river Tone near Taunton. The sole purpose of these flap valves is to stop high water levels on the river Tone from flooding the village up stream of these flap valves. These flap valves were installed in 2013.
5. This is a picture of an existing flap valve with a 300mm Fish friendly flap fitted. The fish friendly flap is basically an upside down flap valve with a floatation tank fitted to the door. the flap sits in the open position and closes as the water rises by the floatation tank lifting in the rising water to the closed position. This structure is situated on a tidal outfall on the River Trent and stops the rising river from flooding up stream.
6. This is the forward view of the flap valve installed at Holegate Beck in York. The flap is made from HDPE and due to its size has Stainless steel strengthening strips to hold the door square. the Davit arm was installed to allow the door to be held open on occasions when the upstream channel had hi water levels and needed flushing away. the Davit arm could be dismantled and stored off site.
