Alfa-Laval Introduces Nirex Distiller For Smaller Vessels

Alfa-Laval, Inc.. Fort Lee, N.J., has introduced a new Nirex freshwater distiller designed to meet the needs of smaller vessels. Designated the -JWP-26-C, the unit is a smaller version of the -JWP-36-C series. The unit can be used on fishing vessels, work boats, supply boats and offshore rigs with small engines as well as vessels in excess of 2,000 dwt.

The JWP-26-C has a capacity range from 300 to 5,500 gpd, depending on the heating medium and cooling water temperatures. Distillers can be dimensioned to suit any jacket water temperature from 131- 194°F, and any sea water temperature required. The quantity of fresh water produced can be altered within each size by varying the number of plates in the heat exchanger assemblies.

Weighing no more than 1,140 pounds, the unit can be dismantled easily. This allows for the subassemblies to be hand carried by two persons into the engine room without making any alterations in the room.

The JWP-26-C can quickly be reassembled— just bolt it together, hook it up to water and electrical lines, and start it up with a push of a button.

The distiller comes with its own pumps, electric motors, control panel, salinometer and internal piping.

The distiller is designed to operate automatically under varying operating conditions. The freshwater salinity is monitored by a salinity indicating system with an automatic dump valve. The standard distiller delivers a constant salinity of no more than 1.5 ppm, what is said to be the lowest of any available on the market. On sensing an excessive salt content (2 ppm), the fresh water produced is automatically diverted to bilge by the dump valve.

Like all Alfa-Laval Nirex distillers, the JWP-26-C series features titanium plate heat exchangers which eliminate corrosion problems and allow for increasing capacity simply by installing additional plates in both the condenser and evaporator. To further eliminate corrosion, the distiller cover is pressed from stainless steel; nonferrous alternatives are also available.

After cleaning, normally required only once per year, the Nirex distiller delivers 100 percent capacity.

The "C" in the designation refers to the combined condenser cooling and ejector water system, a key feature of the JWP-26-C. This combined system lowers installation costs and increases reliability of the distiller.

According to Bill Huffman, Alfa-Laval product manager-Nirex, more than 50 units have been sold worldwide since May 1984, including 12 units installed on board French fishing trawlers.

Alfa-Laval is a worldwide group offering services to marine and land-based operators in more than 125 countries. A complete line of purifiers, plate heat exchangers, and energy-saving, reliable freshwater distillers is available.

For free literature and information on the JWP-26-C, Circle 75 on Reader Service Card

Maritime Reporter Magazine, page 40,  Aug 1985

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.