Fill valve

A fill valve for use in cementing operations in the construction of oil and gas wells, which fill valve comprises a tubular housing, a valve member slidably mounted in said tubular housing having a valve seat, and spring means biasing said valve member towards a closed position, wherein said valve member comprises a head engageable with said valve seat on said tubular housing to close the valve, a tubular portion and two windows in said tubular portion, so that when said fill valve is open, fluid can flow through said tubular portion and exit via said windows, and so that fluid pumped through said tubular portion displaces said valve member relative to said tubular housing to open the fill valve and exit via said at least one window, wherein said two windows are disposed opposite one another and said valve member is provided with a deflector for deflecting fluid entering said tubular portion towards said windows.