The flood and odour control plate is an optional accessory. Designed to provide the access cover frame with resistance to egress of chamber odours, flood water ingress and intermittent chamber pressures of up to 0.5 (a special variant is available that withstands 1 bar of pressure). Access can still be achieved via a removable steel lid.
This is a factory-fitted item and must be requested at point of order. It can only be fitted to Wrekin ductile iron access cover frames.