Marine Combined Hydrophore

Fresh-Water & Sea-Water Marine Combined Hydrophore

The Freshwater & Seawater Marine Combined Hydrophore Unit is a true game-changer in marine water management. This innovative system ingeniously integrates both freshwater and seawater storage into a single, space-efficient pressure vessel, eliminating the need for two separate, bulky tanks. Featuring a unique dual-compartment design with an upper fresh-water tank and a lower sea-water tank, this unit offers a remarkable 50% reduction in installation space compared to traditional separate systems.

This space-maximizing design not only significantly cuts down on installation costs but also provides unparalleled operational convenience for modern ships, offshore platforms, and marine vessels where every square meter of engine room or deck space is at a premium. By consolidating two essential water systems into one footprint, you gain greater flexibility for other critical equipment.

Built for Versatility and Longevity

Available in both carbon steel and stainless steel construction, the combined hydrophore unit offers material options to suit different budget constraints and durability requirements. Whether you need the cost-effectiveness of coated carbon steel or the ultimate corrosion resistance of stainless steel for the most aggressive marine environments, we have a solution.

Globally Approved and Certified

Rest assured that this system meets the highest international standards. It is approved by the International Maritime Organization (IMO) and comes with all major classification society certificates (including CCS, ABS, DNV, LR, BV), ensuring full compliance with international marine regulations and simplifying the vessel approval process.

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Key Features & Advantages

• ✅ Dual-Fluid Integration: Seamlessly combines fresh-water and sea-water storage in one compact system, eliminating multiple separate tanks and simplifying piping.

• ✅ Space-Maximizing Design: Achieves a 50% space reduction compared to conventional separate systems, freeing up valuable real estate in engine rooms and pump rooms.

• ✅ Diverse Material Choices: Available in both Carbon Steel (cost-effective, epoxy-coated) and Stainless Steel (maximum corrosion resistance, minimal maintenance).

• ✅ Budget-Friendly Solution: Significantly lowers initial installation costs (less piping, fewer foundations) and reduces long-term maintenance expenses.

• ✅ Global Compliance & Certification: IMO approved and certified by all major classification societies (CCS, ABS, DNV, LR, BV), guaranteeing acceptance worldwide.

• ✅ Shared Pressure Mechanism: Utilizes a unified air compression system to maintain consistent pressure in both compartments, ensuring efficient and reliable water delivery to all points of use.

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System Operation & Core Components

Dual-Compartment Structure

• Upper Compartment (Freshwater): Specifically designed for the storage of potable water, providing a clean, hygienic, and reliable source for drinking, bathing, cooking, and sanitation.

• Lower Compartment (Seawater): Dedicated to seawater storage, supplying water for non-potable applications such as deck washing, firefighting reserve, engine room cooling, and general cleaning.

Automatic Control Assembly

The system operates automatically to maintain optimal pressure and supply:

• Pressure Regulator: Automatically initiates the freshwater pump when system pressure drops to 0.3 MPa and stops it when pressure reaches 0.4 MPa, ensuring consistent water pressure.

• Liquid Level Gauges: Features clear visual indicators for both compartments, allowing operators to easily monitor water levels at a glance.

• Overpressure Protection Valve: A safety valve that activates if pressure exceeds the safe limit, preventing potential damage to the system.

• Compressed Air Charging Valve: Enables easy replenishment of the compressed air cushion, which is essential for maintaining steady pressure and preventing pump short-cycling.

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Technical Specifications

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Applications & Operational Advantages

Marine-Specific Applications

• Accommodation Fresh-Water Provision: The upper compartment supplies fresh water to living quarters, galleys, and laundry rooms, ensuring a comfortable and hygienic environment for crew and passengers.

• Deck Washing Sea-Water System: The lower compartment provides pressurized seawater for deck cleaning, anchor washing, and general exterior maintenance.

• Engine Room Service Water: Supplies water for various engine room operations, including cooling systems, component washing, and general utility needs.

• Emergency Water Reserve: Acts as a reliable emergency water source, providing a vital supply for survival and basic needs in unexpected situations.

• Ballast Control (Auxiliary): Can serve as a small-volume, high-pressure source for auxiliary ballast or trim systems.

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Frequently Asked Questions (FAQs)

Q1: How does a combined hydrophore unit save 50% space compared to separate tanks?
A: The space savings come from two factors:

1. Structural Integration: Instead of two separate tanks, each with its own foundations, supports, and surrounding access space, the combined unit uses a single, shared pressure vessel with a dividing bulkhead.

2. Shared Ancillaries: The system utilizes a single air compressor connection, one control panel, and shared pressure monitoring systems, eliminating the duplication of components required for two independent systems.

Q2: Is there any risk of cross-contamination between the freshwater and seawater compartments?
A: No. The two compartments are completely separate and isolated by a robust, water-tight bulkhead. There is no mixing of fluids. The freshwater compartment is constructed and coated (if carbon steel) or finished (if stainless steel) to potable water standards, ensuring the fresh water remains hygienic and free from seawater contamination.

Q3: What are the advantages of choosing the Stainless Steel version over Carbon Steel?
A:

• Stainless Steel: Offers superior corrosion resistance, especially in the seawater compartment. It requires no internal coating, eliminating the risk of coating failure over time. It is the preferred choice for long-term, low-maintenance operation in aggressive marine environments.

• Carbon Steel: Is a more budget-friendly option. It is coated with a high-grade, food-safe epoxy on the freshwater side and a marine-grade anti-corrosion coating on the seawater side. With proper maintenance, it offers excellent service life.

Q4: What maintenance is required for the air cushion in the combined unit?
A: The air cushion is critical for proper operation. Over time, air can be absorbed into the water. You should periodically check the system’s pre-charge pressure (with the pumps off and lines drained). If the pressure is low, use the compressed air charging valve to add air. Typically, the pre-charge pressure should be set just below the pump cut-in pressure.

Q5: Can this system be retrofitted onto an existing vessel?
A: Yes, it can. The combined unit’s space-saving design makes it particularly attractive for retrofits where engine room space is already constrained. It can replace two older, separate tanks, freeing up space for other equipment. A site survey is recommended to ensure the unit’s footprint and connections align with your existing plumbing and foundation layout.

Q6: Does the unit come with all necessary classification society certifications?
A: Yes. The Freshwater & Seawater Marine Combined Hydrophore Unit is designed and manufactured to meet the requirements of the IMO and major classification societies. We can supply the unit with certification from CCS, ABS, DNV, LR, BV, and others as specified in your order. This includes material certificates, welding procedures, and pressure test reports.

Attention please: The description was copied from different cooperating manufacturers. The description may be different with the goods, please check with us when order.

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