Support for valve of inflatable bag

A support mountable in an inflatable bag having a belt shaped valve, comprising:

• a tube having, an outer diameter dimensioned and shaped to partially fit into the belt shaped valve of the inflatable bag, the tube including a first engagement member formed on its outer surface, and a central first bore;
• at least two clamp members each having an inner surface dimensioned and shaped to fit around the outer surface of the tube, each clamp member including a half flared support element extended from one end, and a second engagement member formed on its inner surface wherein the second engagement members are securely engaged with the first engagement member for gripping a peripheral edge of the belt shaped valve when the inner surfaces of the clamp members are urged against the outer surface of the tube;
• and
• a tubelike support member including a central second bore dimensioned and shaped to fit around outer surfaces of the clamp members to cause the clamp members to grip the peripheral edge of the belt shaped valve.