Air vents

Anti-siphoning

When the cooling water injection point is less than 15cm above the waterline, the cooling system can siphon water through the intake when the engine is turned off. Water can therefore siphon into the exhaust system and even into the marine engine itself, but this can be prevented by using an air vent.


ASDVS
Spare set: ASDV valves.
ASDV
Air vent suitable for hoses with internal diameters of 13, 19, 25 and 32mm. Air bleed connection rotates through 360°.
ASDH
Comes complete with skin fitting, hose clamps and 2m of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32mm.
ASD38V
This airvent is suitable for 38mm hose. Also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°.
ASD38H
This airvent is suitable for 38mm hose and is also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°. (Includes 2m hose and skin fittings)
AIRVENTV
Anti-syphon device with reliable pressure valve. Self contained. Can be connected to hoses with internal diameters of 13, 19, 25 and 32mm.
AIRVENTH
Anti-syphon device. Complete with skin fitting, hose clamps and 4m of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32mm.

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