Freshwater generators and desalinators (evaporators, RO systems)
Every equipment type in Freshwater Generators links to full manufacturer and model data, specifications and service notes.
All 51 manufacturers with models in Freshwater Generators. Every name opens a search across the full library.
The term "watermaker" on a ship almost always means a reverse osmosis (RO) unit, as opposed to a flash evaporator or vacuum distillation plant that uses waste heat from the main engine jacket water. An RO watermaker forces seawater through a semi-permeable membrane at 55-70 bar; the membrane rejects dissolved salts and passes fresh water through, with no phase change and no dependence on main engine heat. That makes it the only practical freshwater option when the main engine is stopped, when running on low-temperature cooling water systems that leave…
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