Patent ID: 8074848

Claim:
A valve arrangement for a pressurised fluid container, comprising a valve disc ( 10 ) which may be sealingly connected to a fluid container, a valve body ( 20 ) made of plastics which may be secured in an opening of the valve disc ( 10 ), a valve piston ( 30 ) made of plastics which is guided in a through-channel of the valve body ( 20 ) and cooperates with a sealing surface ( 26 ) of the valve body and a spring arrangement ( 40 ) cooperating with the valve body ( 20 ), which presses the valve piston ( 30 ) against the sealing surface ( 26 ) of the valve body ( 20 ), characterised in that the valve body ( 20 ) comprises a neck ( 23 ) defining the through-channel and at least one collar segment ( 24 ), an annular groove ( 21 ) being formed between the neck ( 23 ) and the at least one collar segment ( 24 ), and into the annular groove ( 21 ) a press ring ( 50 ) is introduced, of which the thickness in the radial direction is such that the at least one collar segment ( 24 ) is pressed in a spread-apart manner against the opening of the valve disc ( 10 ).