Dual-Power Marine Water Heater | Steam & Electric Heating System | IMO Certified
Versatile Marine Water Heating Solution with Dual Heating Technology
Our Steam and Electric Heating Water Heater Tank offers unmatched flexibility for marine hot water systems, featuring dual heating capability that can operate on either steam or electric power. This advanced dual-fuel system provides continuous hot water supply for crew accommodation and service needs, with automatic temperature control and comprehensive safety features that meet stringent marine classification standards.
Key Features & Benefits
✔ Dual Heating Technology – Steam AND electric heating elements for operational flexibility
✔ Intelligent Temperature Control – WTZK-50-C controllers maintain perfect 50-65°C range
✔ Safety Protection System – Float level switch prevents dry heating damage
✔ Energy Efficient Operation – Segmented heating technology reduces power demand
✔ Global Certification Ready – ABS, BV, DNV, LR, CCS and other major class approvals
Technical Specifications
| Model | ZDR-0.12 | ZDR-0.2 | ZDR-0.3 | ZDR-0.5 | ZDR-1.0 |
|---|---|---|---|---|---|
| Capacity (m³) | 0.12 | 0.2 | 0.3 | 0.5 | 1.0 |
| Working Pressure | 0.4 MPa (60°C) | 0.4 MPa (60°C) | 0.4 MPa (60°C) | 0.4 MPa (60°C) | 0.4 MPa (60°C) |
| Design Pressure | 0.44 MPa | 0.44 MPa | 0.44 MPa | 0.44 MPa | 0.44 MPa |
| Test Pressure | 0.68 MPa | 0.68 MPa | 0.68 MPa | 0.68 MPa | 0.68 MPa |
| Safety Valve Setting | 0.42 MPa | 0.42 MPa | 0.42 MPa | 0.42 MPa | 0.42 MPa |
| Steam Heating Capacity | 275 kg/h | 450 kg/h | 750 kg/h | 1200 kg/h | 3250 kg/h |
| Steam Consumption | 27.5 kg/h | 45 kg/h | 75 kg/h | 120 kg/h | 325 kg/h |
| Electric Heating Capacity | 180 kg/h | 360 kg/h | 540 kg/h | 720 kg/h | 900 kg/h |
| Electric Power | 12 kW | 24 kW | 36 kW | 48 kW | 60 kW |
| Voltage Options | AC380V/50Hz/3φ or AC440V/60Hz/3φ |
Dual Heating System Operation
Electric Heating Mode:
-
Automatic Temperature Control: Heats when below 50°C, stops at 65°C
-
Segmented Power Management: Staggered startup for high-power elements
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Dry-run Protection: Float switch cuts power if water level low
Steam Heating Mode:
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Temperature Regulating Valve: Automatically controls steam flow
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Efficient Heat Transfer: 0.3 MPa steam pressure requirement
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Continuous Operation: Maintains temperature during steam availability
Control Systems:
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Dual Operation Modes: Manual and automatic control
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Visual Monitoring: Pressure gauge and thermometer
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Safety Systems: 0.42 MPa safety valve protection
Applications & Marine Uses
Primary Applications:
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Crew accommodation hot water supply
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Galley and sanitation services
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Laundry facility operations
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General shipboard hot water requirements
Operational Advantages:
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Fuel flexibility – use steam when available, electric when not
-
Energy efficiency with precise temperature control
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Redundancy with dual heating systems
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Low maintenance with robust marine construction
Certification & Compliance
Designed to meet requirements of all major classification societies:
✅ ABS (American Bureau of Shipping)
✅ BV (Bureau Veritas)
✅ CCS (China Classification Society)
✅ DNV (Det Norske Veritas)
✅ GL (Germanischer Lloyd)
✅ LR (Lloyd’s Register)
✅ NK (Nippon Kaiji Kyokai)
✅ RINA (Italian Naval Register)
The description/sizes may be different with goods, please check with us when order.
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