Structured Manufacturing Data (2026)

Storage Section / Feedwater Tank

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Storage Section / Feedwater Tank used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Storage Section / Feedwater Tank is characterized by the integration of Shell and Heads (Dished Ends). In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The storage section of a deaerator that holds treated feedwater before distribution to boilers.

View Full Specifications Explore Manufacturing Sources

Product Specifications

Technical details and manufacturing context for Storage Section / Feedwater Tank

Definition
The Storage Section/Feedwater Tank is an integral component of a deaerator system. It serves as a reservoir for the deaerated, oxygen-free feedwater after it has passed through the deaeration section. This tank maintains a sufficient volume of treated water to ensure a steady, uninterrupted supply to the boiler feed pumps, helping to buffer against fluctuations in demand and providing a final stage for any residual gases to separate.
Working Principle
Deaerated water from the spray or tray section flows into the storage tank. The tank is typically maintained at a specific pressure and temperature (slightly above atmospheric boiling point) to prevent re-dissolution of gases. The large volume allows for thermal storage and provides residence time for any minute gas bubbles to rise to the surface and be vented. Water is drawn from the bottom of the tank by feed pumps for delivery to the boiler.
Common Materials
Carbon Steel, Stainless Steel (for corrosive feedwater)
Technical Parameters
  • Storage capacity, determining the system's buffer time and reserve volume. (m³) Per Request
Components / BOM
  • Shell
    The main pressure-retaining cylindrical body of the tank.
    Material: Carbon Steel or Stainless Steel
  • Heads (Dished Ends) Part
    The curved end closures of the cylindrical shell.
    Material: Carbon Steel or Stainless Steel
  • Inlet Nozzle Part
    Connection point for receiving deaerated water from the deaeration section.
    Material: Carbon Steel or Stainless Steel
  • Outlet Nozzle Part
    Connection point at the bottom for feedwater discharge to the boiler feed pumps.
    Material: Carbon Steel or Stainless Steel
  • Manway
    Access hatch for internal inspection and maintenance.
    Material: Carbon Steel or Stainless Steel
  • Level Gauge Connection Part
    Nozzle for installing level indication devices (sight glass, transmitter).
    Material: Carbon Steel or Stainless Steel
  • Vent Connection Part
    Nozzle for connecting a vent line to release any accumulated non-condensable gases.
    Material: Carbon Steel or Stainless Steel
  • Support Legs/Skirt Part
    Structural supports to hold the tank in its installed position.
    Material: Carbon Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Storage Section / Feedwater Tank.

feedwater tank storage section deaerator storage tank carbon steel industrial feedwater holding tank boiler feedwater storage vessel machinery equipment feedwater tank

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Deaerator
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-10 bar (0-145 psi) typical, up to 15 bar (218 psi) for pressurized designs
flow rate: 10-500 m³/h (44-2200 gpm) depending on tank capacity and system demand
temperature: 105-120°C (221-248°F) typical, up to 150°C (302°F) for high-pressure systems
slurry concentration: Not applicable - designed for clean, deaerated water only
Media Compatibility
✓ Deaerated boiler feedwater ✓ Condensate return ✓ Chemically treated demineralized water
Unsuitable: Corrosive fluids (acids, chlorides) or abrasive slurries
Sizing Data Required
  • Maximum system flow rate (m³/h or gpm)
  • Required storage capacity (minutes of system demand)
  • Operating pressure and temperature requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion and pitting
Cause: Dissolved oxygen in feedwater reacting with tank metal, accelerated by improper chemical treatment or stagnant water conditions.
Cavitation damage at pump suction
Cause: Insufficient net positive suction head (NPSH) due to low water level, high temperature, or pump oversizing causing vapor bubble formation and collapse.
Maintenance Indicators
  • Visible rust streaks or weeping at tank seams/welds indicating active corrosion
  • Unusual pump noise (cracking/popping sounds) from cavitation or fluctuating level gauge readings
Engineering Tips
  • Implement continuous oxygen scavenging and pH control with automated chemical injection, plus regular internal inspections for coating integrity
  • Maintain minimum water level above pump suction per NPSH requirements, install vortex breakers, and verify pump curves match system demand

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASME BPVC Section VIII - Rules for Construction of Pressure Vessels EN 13445 - Unfired Pressure Vessels
Manufacturing Precision
  • Wall Thickness: +/-0.5mm
  • Nozzle Alignment: +/-1.5mm
Quality Inspection
  • Hydrostatic Pressure Test
  • Ultrasonic Thickness Testing

Factories Producing Storage Section / Feedwater Tank

Manufacturer profiles with relevant production capability in China

Add your factory

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Supply Chain Compatible Machinery & Devices

Automated Assembly Line System

Integrated production system for sequential component assembly operations

Explore Specs →
Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

Rotating component that transfers energy to fluid in centrifugal pumps.

Explore Specs →
High-Precision CNC Laser Cutting Machine

Computer-controlled industrial machine using focused laser beams to cut sheet metal with micron-level accuracy.

Explore Specs →

Frequently Asked Questions

What is the purpose of the storage section in a deaerator feedwater system?

The storage section holds treated, deaerated feedwater before it's distributed to boilers, ensuring a consistent supply of oxygen-free water to prevent corrosion and maintain boiler efficiency.

When should stainless steel be used instead of carbon steel for feedwater tanks?

Stainless steel is recommended for feedwater tanks when handling corrosive feedwater or in applications requiring higher corrosion resistance, while carbon steel is suitable for standard industrial applications with proper treatment.

What are the key components included in a typical feedwater tank BOM?

A standard bill of materials includes shell, dished heads, inlet/outlet nozzles, manway for maintenance, level gauge connection, vent connection, and support legs or skirt for structural stability.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Request Manufacturing Insight for Storage Section / Feedwater Tank

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for Storage Section / Feedwater Tank.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Storage Section / Feedwater Tank?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
Storage Racks
Next Product
Storage Tank