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LAFON 1.5” Anti-syphon valve

Valves & Hardware

Stock Code: 13000000

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The anti-siphon valve is essential when using a dispenser connected to an aboveground tank.

It avoids accidental emptying of the tank in case of dysfunctioning of the air strainer. It prevents product loss and site pollution. It ensures that the pumping equipment operates correctly.


  • Avoids accidental emptying, no product loss, no pollution
  • Perfectly regular flow rate (original design limits beating effects)
  • No risk of valve being blocked by impurities due to the use of a filter
  • Limited loss of hydraulic force
  • Triangular flange for an easy installation and maintenance
  • Perfect stability
  • Very durable product
  • Possible use for heights up to 6m
  • Easy maintenance by simply unscrewing the screws on the cover
  • Possibility to install 2 valves in parallel to double the flow.
  • Connection via triangular 1’’1/2 flanges (included) Female thread
  • Fitted with a filter for any impurities that may be present
  • Maximum liquid column : 6 m
  • Maximum flow rate : 83 liters/minute - 5 m3/h
  • Possible to install 2 anti-siphon valves to double flow rate up to 166 liters/min
  • Must be fitted horizontally or verticaly as near the dispenser as possible
  • High resistance aluminum body, copper-aluminium check valve, special hydrocarbon seals
  • Valve adjustment by screw to ensure perfect adaptation to your installation

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