50 T/D Seawater desalination device for offshore drilling platforms

July 4, 2025
Latest company case about 50 T/D Seawater desalination device for offshore drilling platforms

Seawater Desalination Unit adopts internationally advanced reverse osmosis (RO) technology with optimized system design.

Engineered to meet shipyard contract technical agreement requirements, the equipment complies with specified dimensional constraints and includes lifting lugs. It features a compact footprint, space-saving design, easy installation, and strong adaptability. Suitable for vessels and offshore platforms, the unit operates simply with convenient maintenance. It produces water immediately after startup requiring only seawater and power supply. The system offers high desalination rates, stable performance, safety, and reliability.

This system effectively removes inorganic salts, heavy metal ions, organic bacteria, viruses, and other harmful components from seawater, producing high-quality freshwater compliant with China's *Sanitary Standard for Drinking Water (GB5749-2006)*.


Product Parameters

Model: WY-SW-50
Frame Color: Grey Silver (RAL 7001)
Product Water Standard: TDS < 700 mg/L
Capacity: 50 TPD (for offshore drilling platforms)

Parameter Specification Parameter Specification
Model WY-SW-50 Product Water TDS < 700 mg/L
Capacity 2.08 m³/h Power Consumption 16.5 KW
Desalination Rate > 98.5% Power Supply 480V / 60Hz / 3-phase
Product Water TDS < 700 mg/L Electrical Enclosure IP44
System Recovery 35%* Dimensions (L×W×H) 2600×1200×2035 mm
Operating Pressure 3.5~5.5 MPa Net Weight 710 kg
RO Membranes & Housings 3 vessels × 3 membranes Frame Material Painted Carbon Steel

*Subject to temperature and feed water quality.


System Functions

  1. High-Pressure Shutdown: Automatic shutdown with audible/visual alarm if discharge pressure exceeds 6.2 MPa.

  2. Low-Pressure Shutdown: Automatic shutdown with alarm if feed pressure drops below 0.05 MPa due to insufficient pretreatment supply.

  3. Manual Multi-Port Valves: Allows cleaning of multi-media filter when pressure differential reaches 0.1 MPa.

  4. RO Membrane Cleaning System: Enables physical cleaning, chemical cleaning (CIP), and preservative injection for RO membranes.

  5. Automatic Product Water Rejection: Diverts water if quality exceeds set limits.


Key Components

  • RO Membranes: 8040 type (DOW / Toray / Hydranautics)

  • Membrane Housings: FRP, 1000 PSI

  • Multi-Media Filter: φ900×1650 mm, FRP

  • Cartridge Filter: 20 m³/h, 20" x 5μm x 1 pc, FRP

  • Feed Pump: CNP (Southern Pump), SUS316L

  • High-Pressure Pump: Taiwan Diamond Brand, SUS316

  • Electrical Components: Schneider Electric

  • Conductivity Meter: Coretech Brand


Factory Delivery List

  1. Water Treatment Equipment Unit

  2. Product User Manual & Operation Video*

  3. Completion Documentation (Product Certificate, Factory Test Report, Packing List, Equipment Drawings)

  4. Other Consumables & Accessories