A container (2) for under-vacuum packaging of products comprises an envelope (3) for housing a product. The envelope (3) is inserted in the container (2) through an access opening (5) provided with an airtight sealing hinge (6) having opposite closing portions (7, 8) identical with each other in their structure. The container (2) also comprises a valve (1) consisting of a base body (9) that, in the envelope (3), defines a sucking duct (10), a closing element (11) capable of hermetically sealing the sucking duct (10), and a locking element (12) designed to lock the closing element (11) to the closed position. The locking element (12) is maintained always linked to the base body (9) by means of appropriate abutment elements (14, 15). IMAGE
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