Air Suction Vent - Type ASV

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Air Suction Vent - Type ASV

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In addition to combustion air, the engine also requires sufficient ventilation air to dissipate the residual heat. The required volume of ventilation air is about the same as the combustion air needed which is approximately 6.1 m3 per kW (4.5 m3 per hp) per hour based on a maximum air velocity of 3 m/sec. The design of the VETUS air suction vents is based on these principles. The model numbers relate to the engine horsepower for which they are suitable.

This type has a polished anodised aluminium frame with grilles of naturally anodised aluminium.


Model A
E=Cutout radius
Free flow area
in dm2*
ASV020A 300 280 117 97 R 48.5 0.83
ASV025A 350 330 117 97 R 48.5 1
ASV030A 360 340 130 110 R 55 1.22
ASV040A 450 430 130 110 R 55 1.59
ASV050A 490 470 146 126 R 63 2.02
ASV060A 570 550 146 126 R 63 2.41
ASV070A 590 570 159 139 R 69.5 2.83
ASV080A 590 640 159 139 R 69.5 3.21
ASV090A 670 650 172 152 R 76 3.63
ASV100A 730 710 172 152 R 76 4
ASV125A 750 730 198 178 R 89 5.03
ASV150A 890 870 198 178 R 89 6.03

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