Inflatable package with valve

An inflatable package comprising:

• outer pliable walls of indefinite length, said walls being joined along their opposed longitudinal edges and along spaced apart seams extending transversely between said longitudinal edges thereby defining a plurality of chambers of predetermined width between said outer walls;
• and
• valve means disposed in longitudinal alignment between said outer walls for permitting the ingress of pressurized fluid into said chambers, said valve means comprising opposed layers of pliable film sealed together to define therebetween a primary fluid duct extending continuously along the length of said valve means, and a plurality of spaced apart flow channels intersecting said primary duct at an angle to extend transversely from said primary duct, a respective at least one of said flow channels placing said primary duct in fluid communication with the interior of respective ones of said chambers, said primary duct and flow channels being collapsible into a substantially flattened sealed condition when the ingress of pressurized fluid terminates to prevent the egress of said fluid from said chambers;
• the orthogonal distance between centres of adjacent flow channels being equal and sufficiently less than the width of respective ones of said chambers so that each of said chambers is placed in fluid communication with said primary duct via at least one of said flow channels without need of registration of said flow channels relative to said chambers.