Air vents

When the cooling water injection point is less than 15 cm above the waterline, the cooling system can siphon water through the intake when the engine is turned off. Water can siphon into the exhaust systems and even into the engine itself. Prevent this from happening with an air vent.

Air vents

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  • ASDV

    VETUS anti syphon device with valve, for 13/19/25/32 mm hose
    Air vent suitable for hoses with internal diameters of 13, 19, 25 and 32 mm. Air bleed connection rotates through 360°.
  • ASDH

    VETUS anti syphon device with hose, for 13/19/25/32 mm hose
    Comes complete with skin fitting, hose clamps and 2 metres of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm.
  • ASD38V

    VETUS anti syphon device with valve, for 38 mm hose
    This airvent is suitable for 38 mm hose. Also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°.
  • ASD38H

    VETUS anti syphon device with 38 mm hose
    This airvent is suitable for 38 mm hose. Also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°.
  • AIRVENTV

    Airvent with valve
    Anti syphon device with reliable pressure valve. Self contained. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm.
  • AIRVENTH

    VETUS airvent with hose, for 13/19/25/32 mm hose
    Anti syphon device. Complete with skin fitting, hose clamps and 4 m of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm.

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