The Vetus Anti-Syphon Airvent Type V has a reliable pressure valve and is self contained. It requires periodic maintenance to prevent clogging with salt crystals.
Can be connected to hoses with internal diameters of Ø 13, 19, 25 and 32 mm (½”, ¾”, 1” & 1¼” ).
Why fit an anti-syphon device?
If the point where the cooling water is injected into the exhaust is less than 15cms above the waterline, then when the engine is stopped, there is a risk that cooling water will siphon into the exhaust system and subsequently into the engine itself. Such siphoning may be prevented by fitting a VETUS air vent at least 40 cm above the waterline.
Housing : Made of synthetic material
Valve : Made of synthetic and stainless steel.
Mounting brackets are available for both types of air vent, to facilitate installation onto surfaces clad with sound insulation
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