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Vent valves

VACUUM BREAKER

AIR VALVES are essential devices for managing air within pipelines and water systems.

CHARACTERISTICS

  • FUNCTIONS Prevents the formation of vacuums inside pipes during filling or emptying. Used to allow the necessary amount of air to return to prevent overpressure, starting to operate as soon as the pressure is below atmospheric pressure.
  • CHARACTERISTICS Allows air to enter when the pressure inside the pipe drops below atmospheric pressure, preventing structural damage or implosions.
  • APPLICATIONS Essential in systems where vacuum formation may cause damage or compromise stability.

USE OF VENT VALVES IN WATER SUPPLY SYSTEMS

Automatic vent valves are essential for addressing different needs in water supply systems:



Air release during filling:Facilitates correct filling of pipelines, preventing the accumulation of air pockets.

Air intake during emptying:Allows air intake to prevent vacuum formation and maintain pipeline stability.

Release of air bubbles during operation:Prevents the accumulation of air that could reduce system efficiency and cause unwanted phenomena such as water hammer.
Vent valves can be equipped with various accessories to optimize their performance and adapt them to the specific needs of the system:



Shut-off valve:Allows inspection and maintenance of the vent valve.
Rubinetto di scarico:Facilitates draining of the valve body and is used during hydraulic tests.
Anti-crush device:Prevents sudden valve closures and the resulting overpressure phenomena.


RANGE OF PRODUCTION
Sizes: DN25 - DN600 / DN1” – DN24”
Pressure Rating: PN2,5 – PN100 / ANSI150 – ANSI600
Body Material: cast iron, steel, stainless steel, Al/Bz
Internal parts material: the most commonly used material for internal components is
stainless steel (Duplex, Superduplex, AISI316/304), Special Alloys (Monel K500/400).
Held: Rubber/metal
Operation: Automatic





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