Black plastic champagne stopper

The Plastic Champagne Stopper is a universal super stopper, ideal for champagne, sparkling and sparkling wines.

UP TO 6 ATMOSPHERES

Made of plastic suitable for food contact, this stopper features the Block Waf System© with a seal up to 6 atmospheres.

BLOCK WAF SYSTEM: THE INGENIOUS INVENTION MADE IN WAF

In the late 1980s, Walter Fortunato designed and built the stopper sealing system that made Waf world famous.
The Block Waf System© still represents the most ingenious invention for preserving the precious qualities of newly uncorked sparkling wines over time.
The patent, applied in many items in the stoppers line, follows Pascal's principle that pressure exerted on a fluid is transmitted in all directions with equal intensity. Applying this principle to the bottle, the elastic teat goes to adhere to the inside wall of the mouthpiece. The head gasket with which the teat is fitted tends to rest against the top edge of the bottle, creating an initial obstacle to the escape of carbon dioxide. The latter, again due to Pascal's principle, enters the teat through the hole underneath and as pressure increases goes to expand it against the glass wall, thus creating a state of overpressure inside.
The external fixing bracket is designed to counteract the vertical thrust that the stopper receives and thus ensure its tightness, tested up to 6 atmospheres.