| http://www.w3.org/ns/prov#value | - At the lower portion of the cylindrical body is super-imposed the end of a flexible tubular member extending from an inflatable fluid container, the resiliency of which when pressing the walls of the cylinder keeps the channel closed that constitutes the intake of the valve; also the valve of the present invention includes a plastic, metal or other rigid material cap or cover, that protects the va
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