Water Tank Anode (WST) - APS Materials, Inc.

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CerAnode Rod Assembly (CRA)

CerAnode’s WST Horizontal Water Tank Anode system is engineered to provide reliable impressed-current cathodic protection (ICCP) for horizontal water storage tanks. Built using MMO mixed-metal-oxide coated titanium wire, the WST delivers consistent current distribution along the tank floor or walls. It’s designed for long-term service and minimal maintenance, helping extend the life of steel water tanks.

Key Features & Benefits (subsection with bullet points)
1. Materials & Construction:
  1. MMO-Coated Titanium Core: Uses a mixed-metal oxide coating to ensure long life, low consumption, and stable electrochemical behavior.
  2. Continuous Linear Anode: Flexible wire conforms to the tank’s geometry, allowing uniform current distribution.
  3. Environmentally Stable Design: Inert materials resist degradation in potable water, brackish, or fresh water environments.
2. Electrical & Performance:
  1. Optimized Current Distribution: The continuous layout provides even polarization, minimizing “hot spots” that can lead to localized corrosion.
  2. Power-Efficient: Low groundbed or backfill resistance improves overall ICCP system energy efficiency.
  3. Long Design Life: When properly designed, the MMO anode system can last for decades.
3. Durability & Environment:
  1. Corrosion Resistant: Suitable for continuous immersion and stable in water with varying chemistry.
  2. Robust Against Mechanical Stress: The titanium core resists deformation; the wire’s flexibility helps absorb installation stresses.
  3. Low Maintenance: Once installed, the system requires very little upkeep—mainly periodic cathodic (CP) system checks.
4. Installation & Flexibility:
  1. Pre-assembled Options: Can be delivered in spool or custom length to fit the exact tank dimensions.
  2. Customizable Specs: Design life, current output, wire diameter, insulation, and lead lengths can be specified to match project needs.
  3. Easy Integration: Compatible with CP test posts, rectifiers, and monitoring systems for seamless ICCP deployment.

Installation & Maintenance:

1. Roof-Mounted Suspension: Anodes hang from the roof/manway and are tensioned or weighted to remain vertical.
2. Modular Strings: individual vertical strings can be removed or replaced via manway or tank roof without major tank modifications.
3. Low Routine Maintenance: Periodic electrical checks and visual inspections of header terminations are typically sufficient.