Marine Boiler Feed Water Deaerator Tank – Reliable Oxygen‑Removal for Shipboard Systems
The marine boiler feed water deaerator tank is engineered to protect your vessel’s steam generation plant from corrosion and scale caused by dissolved gases. By delivering deaerated, temperature‑stabilised feed water directly to the boiler, the unit extends equipment life, improves thermal efficiency, and meets the strict reliability standards required for offshore and naval operations.
How It Works – Simple Physics, Robust Design
A deaerator tank operates on the principle of Henry’s law: heating the feed water reduces the solubility of oxygen and carbon dioxide, allowing the gases to escape. In our marine‑grade design, a vertical steam‑stripper column sits inside a stainless‑steel pressure vessel. Steam from the main boiler rises through the column, heating the water to a typical 90–95 °C while sweeping liberated gases to a vent manifold. The deaerated water then flows into the boiler feed line through a low‑turbulence outlet, ensuring a steady, bubble‑free supply.
Technical Specification Snapshot
| Parameter | Typical Range | Units |
|---|---|---|
| Design Pressure | 1.6 – 2.5 | MPa |
| Design Temperature | 90 – 95 | °C |
| Capacity (Water Volume) | 5,000 – 30,000 | Liters |
| Material (Tank) | AISI 304/316L SS | – |
| Material (Internals) | 316L SS, Inconel 600 | – |
| Connection Size | DN 100 – DN 400 | – |
| Control Options | Manual, PLC‑integrated, Remote monitoring | – |
Typical Specifications (customizable per order)
Application Scenarios – Where the Deaerator Adds Value
- Container ships and bulk carriers where high‑pressure boilers run continuously for long voyages.
- Naval vessels requiring strict corrosion‑control to meet operational readiness standards.
- Offshore support vessels that use steam for cargo heating and propulsion auxiliary systems.
- Coastal ferries and cruise liners where passenger comfort depends on stable steam‑based HVAC.
Competitive Advantages – Why Our Tank Stands Out
- Marine‑grade material selection: 316L stainless steel and Inconel components resist chloride‑induced pitting even in salt‑laden atmospheres.
- Compact vertical footprint: Optimised for limited engine‑room space without sacrificing capacity.
- Modular control architecture: Seamlessly integrates with existing Distributed Control Systems (DCS) or standalone PLCs.
- Certified compliance: Meets IMO, ABS, and Lloyd’s Register requirements for pressure vessels and marine safety.
- Extended warranty: Standard 24‑month parts and labor warranty, with optional 5‑year extended coverage.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑size deaerator?
We accommodate both single‑unit orders and bulk purchases. The MOQ for a fully custom design (capacity > 20 000 L, special inlet/outlet dimensions) is typically one unit, with price adjustments reflecting the engineering effort.
Can the tank be adapted to my vessel’s existing control system?
Yes. Our standard offering includes manual valves and optional PLC modules. For integration with proprietary DCS platforms, we provide wiring diagrams and firmware support to ensure seamless communication.
What is the typical lead time from order to delivery?
Standard models (5 000 – 15 000 L) ship within 15–30 days after receipt of a purchase order and engineering sign‑off. Highly customized units generally require 30–45 days, depending on material availability and design complexity.
Do you offer on‑site installation and commissioning?
Our engineering team can provide on‑site installation, start‑up, and performance verification. This service is billed separately and can be scheduled to coincide with planned dry‑dock periods to minimise vessel downtime.
Get the Right Deaerator for Your Fleet
Whether you are retrofitting an existing boiler plant or specifying a new build, the marine boiler feed water deaerator tank delivers the corrosion protection and operational reliability that maritime engineers demand. Contact our technical sales team today to discuss capacity, material options, and project timelines.