Evac has over 35 years of experience in designing and calculating the capacity of vacuum systems. Contact us for detailed information and an analysis of your needs. The following information is offered as a general overview.
Vacuum system capacity is normally calculated according to a system's “peak hour”. This is a one hour period during a day that toilet usage is at its highest. The vacuum creation capacity must match the vacuum required during this period.
When calculating vacuum system capacity, the two most important values are normally the number of toilets, the number of vacuum interface valves, and the number of people on-board. Other important values include vacuum consumption per toilet flush, piping system friction losses, and vacuum unit capacity.
The type of vessel and typical crew/passenger accommodations will determine the specific calculations used to determine design requirements.
After fixtures and capacities are determined, Evac has a wide range of vacuum generation equipment to ensure that each unique vessel can be fitted with the most efficient technology solution.