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Desalt DPU-36-C Series

Desalt DPU-36-C Series

Desalt DPU-36-C Series

Product catalog summary
Application
The DPU-36-C is a vacuum distillation system designed to convert seawater into high-quality freshwater for domestic and process use. It is suitable for installation on ships, rigs, and remote onshore locations, offering automatic operation with continuous freshwater quality control.
Features
  • Compact design with titanium heat exchanger plates and seawater-resistant materials.
  • Integrated condenser cooling, ejector water, and feed water system.
  • Freshwater control system for quality assurance.
Benefits
  • Produces high-quality freshwater with low salinity, suitable for steam boilers.
  • Durable construction with corrosion-resistant materials ensures long lifespan.
  • Low operational and maintenance costs due to easy access and minimal man-hours required.
  • Simple installation due to compact and lightweight design.
Capacity Range
The DPU-36-C series can produce between 10 to 55 m3/24h, depending on heating and cooling water temperatures. The system can be adjusted by varying the number of plates in the heat exchanger.
Working Principle
Seawater is taken from the condenser's cooling water outlet and evaporated in the evaporator at 40–60°C under a vacuum of 85–95%. The vapors pass through a demister and condense into freshwater in the condenser.
Installation
The system is designed for automatic operation in unmanned engine rooms. It uses engine jacket cooling water or steam as the heating medium. The ejector pump supplies seawater for cooling, evaporation, and ejector functions. A control panel manages electrical power and salinity monitoring.
Basic and Additional Equipment
  • Includes titanium plate heat exchangers, brine/air ejector, freshwater pump, and control sensor.
  • Additional equipment includes a cooling and ejector water pump, control panel, and anti-scale chemical dosing unit.
Optional Equipment
  • Steam heating systems, steam boosting, and hot water loop systems.
  • Extended control panel, freshwater pH adjustment filter, and disinfection equipment.
Technical Documentation
Comprehensive manuals provide installation, operation, and maintenance instructions, including troubleshooting and spare parts information.
Service Support
Alfa Laval offers global service centers for spare parts and maintenance support, with training available for operational personnel.
Dimensions and Specifications
Detailed dimensions and weights for various models are provided, with specifications subject to change without notice.
See more

Catalog excerpts

Desalt DPU-36-C Series-1

Titanium plate type fresh water generator Conversion of seawater into freshwater by vacuum distillation for the supply of high quality freshwater for domestic and process utilization. For installation on ships, rigs, and remote onshore locations. The DPU-36-C Is designed for automatic operation with continuous control of freshwater quality • Simple, compact design. • Titanium heat exchanger plates and other seawater resistant materials (non-coated). • Combined condenser cooling, ejector water and feed water system. • Freshwater control system. • High quality freshwater, the low content of dissolved solids (salinity) ensures the supply of pure water that can be used directly as make-up for steam boilers. • Long lifespan. High-grade corrosion resistant materials, such as the titanium plates, ensure a long lifetime for the • Low operation and maintenance costs. Start-and-forget operation, combined with the easy access to the interior, reduces man-hours required for operation and maintenance Ma Lava, fresh water generator type DPU-36-C. Simple Installation due to compact design, low weight and the possibility to assemble on the spot.

 Open the catalog to page 1
Desalt DPU-36-C Series-2

Capacity range The DPU-36-C series covers a capacity range from 10 to 55 m3/24h, depending on the heating medium and cooling water temperatures. capacities at a cooling water tempera- The fresh water generator can be dimensioned to suit any jacket water cooling water temperature required. The quantity of freshwater produced can be altered simply by varying the number of plates in the Internal plate heat exchanger. Working principle The feed water to be distilled Is taken from the sea cooling water outlet of the condenser (1). It enters the evaporator (10) where it evaporates at about plates heated...

 Open the catalog to page 2
Desalt DPU-36-C Series-3

Basic equipment Fresh water generator unit, including titanium plate heat exchangers for evaporator and condenser, generator shell, two stage brine/air ejector, fresh- water pump, freshwater control sensor Additional equipment necessary • Combined cooling and ejector water pump with electrical motor. • Control panel with motor starters • Feed-water anti-scale chemical dosing unit (necessary at heating Optional equipment • Steam heating system type CAS and CS with direct steam Injection. • Equipment for steam boosting and hot water loop system. • Extended control panel with motor (rehardenlng)...

 Open the catalog to page 3
Desalt DPU-36-C Series-4

Main dimensions and service area The designation, 100/125, in the type designation indicates the diameter of inlet and outlet flanges for jacket water connections. * Empty, when In operation add 85 kg (187 lbs). EMD00089EN 0701 Alfa Laval reserves the right to change specifications without prior notification. How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.