In a dispenser, a tubular body carrying on its top a suction valve for suction of a pasty produce into a compression chamber, a distribution head between the chamber and a distribution pipe, a central orifice in the top surrounded by a bearing surface forming the seat of the suction valve, an actuator including the distribution pipe and a duct fitting the top of a deformable cap which defines the compression chamber; the deformable cap including a deformable web and an upper tube carrying a flexible lip forming a valve with the bottom of the duct for expelling the product into pipe.
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