WÄRTSILÄ WARTSILA 20, Product Manual

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minimum starting air pressure = See Technical data p
Rmin
=
NOTE
The total vessel volume shall be divided into at least two equally sized starting air
vessels.
8.2.4 Air filter, starting air inlet (3F02)
Condense formation after the water separator (between starting air compressor and starting
air vessels) create and loosen abrasive rust from the piping, fittings and receivers. Therefore
it is recommended to install a filter before the starting air inlet on the engine to prevent particles
to enter the starting air equipment.
An Y-type strainer can be used with a stainless steel screen and mesh size 75 µm. The pressure
drop should not exceed 20 kPa (0.2 bar) for the engine specific starting air consumption under
a time span of 4 seconds.
The starting air filter is mandatory for Wärtsilä 20 engines.
Wärtsilä 20 Product Guide - a13 - 6 September 2016 8-5
8. Compressed Air System Wärtsilä 20 Product Guide