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AIR VENT
Air vent suitable for hoses of Ø 1/2", 3/4", 1" and 1-1/4" I.D.
Material of housing: synthetic.
If the injection point of the cooling water line is situated at a height less than 6" above the water line, then - when the engine is stopped - there is a risk that, as a result of siphoning, the cooling water may enter the engine. Such siphoning may be avoided by positioning a VETUS air vent into the cooling water tubing, appr. 16" above the waterline. There are two models to choose from: Model V has a pressure valve and is self contained. However it requires periodic maintenance to prevent clogging with salt crystals. Model H has a hose connection to the outside of the hull. There is a constant bleed of cooling water through this hose whilst the engine is running. Model H come complete with a skin fitting, hose clamps and 12 ft. of hose.
The VETUS Air Vent is also extremely suited for toilets which are located below the waterline.