Idromar MC4J Desalination Unit – MINI COMPACT Series

Compact desalination system for nautical applications

The’Idromar MC4J, belonging to the MINI COMPACT series, is a desalination unit designed for installation on board pleasure boats and medium-sized vessels. It is intended to provide a constant production of fresh water directly from seawater, with a compact format and a configuration structured for the marine environment.

Within the MINI COMPACT range, the MC4J model stands out for the balance between compact size, robust materials, and ease of integration in technical rooms with limited access.

Construction features

The MINI COMPACT series, including the MC4J model, is designed with particular attention to corrosion resistance and material uniformity. Among the characteristic construction elements:

• 316L stainless steel frame
• 316L stainless steel membrane vessel
• 316L stainless steel high-pressure pump head
• Stainless steel 316L fasteners and metal components

This choice ensures a robust structure suitable for prolonged use in a saline environment.

Format and installation

The MC4J desalination unit is a system compatto and is also available in a modular, version, useful when access to the technical room is limited.
The MINI COMPACT configurations are developed to fit boats from about 15 to 30 meters, where continuous operation is not necessarily intensive but reliability is required.

Technical data (MC4J)

* Dimensions do not include membranes and feed pre-pump; membranes can be steel, carbon, or fiberglass.

Hydraulic connections

(According to data reported in Idromar technical materials, with some variations depending on versions)

• Sea suction: 3/4”
• Case suction: 3/4”
• Discharge: 3/4”
• Fresh water production: 1/2”

Typical applications

The MC4J desalinator is suitable for recreational boats that require an independent source of fresh water, particularly for:

• Extended navigation
• Anchorage stays
• Multi-day crossings
• Technical and operational activities that require water availability on board

The output of 210 L/h covers the typical needs of a large crew or diverse onboard uses.

Operational advantages

• Compactness and flexibility: suitable for technical rooms with limited space; available in a disassemblable version.
• Homogeneous and marine materials: extensive use of 316L stainless steel on structure and main components.
• Clear and verifiable production: declared flow rate and salinity for easy performance evaluation.
• Simplified installation: provision for standard hydraulic connections and layout designed to facilitate access and maintenance.

Notes for installation and management

For proper integration on board it is advisable to:

• Check the available technical spaces in relation to the system dimensions
• Check the compatibility of existing hydraulic lines
• Consider the required electrical power
• Ensure accessibility for periodic maintenance (filter cleaning, membrane replacement, pump checks)

Note: declared yields refer to a water temperature of 25°C; temperature variations may affect production.

Product identification

• Brand / Manufacturer: Idromar International S.A.S.
• Model: MC4J – MINI COMPACT Series
• Supplier product code: MC4J

FAQ – Frequently Asked Questions

What is the production of the Idromar MC4J desalination plant?

The declared production is 210 Lt/h at 25°C and 5000 Lt/day at 25°C.

What is the salinity of the water produced by the MC4J?

The salinity of the produced water is indicated as 300/400 PPM.

How much power does the Idromar MC4J desalination unit consume?

The power consumption listed on the datasheet is 1.5 kW.

What are the hydraulic connections of the MC4J desalination unit?

Sea suction 1/2”, tank suction 1/2”, discharge 3/8” and production 3/8”.

Which materials are highlighted for the MINI COMPACT (MC4J) series?

For the MC4J, the use of 316L stainless steel is indicated on various elements, including the frame, membrane vessel, and high-pressure pump head, as well as small parts such as screws, bolts, and nuts.