Power Plant Corrosion Control and Technical Services

The threat Soil moisture, differential aeration, stray current from plant DC systems and microbiologically influenced corrosion thin the wall from the outside until it leaks.

How we protect it DCVG and ACVG coating surveys, impressed current cathodic protection, DC decouplers at electrical grounding and periodic CIPS to prove the system is working.

The threat Pitting, erosion-corrosion, under-deposit attack, biofouling and galvanic couples between tube and tubesheet materials reduce heat transfer and cause tube leaks.

How we protect it Materials review, cooling-water chemistry and biocide control, ER and LPR probes on the cooling loop and eddy-current tube inspection during outages.

The threat Chloride corrosion, marine growth, cavitation and galvanic action attack screens, culverts, pumps and outfall structures.

How we protect it Impressed current CP on intake structures and pumps, protective linings, marine-growth control and periodic potential surveys.

The threat Water and sediment at tank bottoms, bacteria in stagnant fuel and sulphide stress cracking produce pitting, sludge and leaks.

How we protect it Internal linings, water draw-off and biocide treatment, corrosion coupons and ER probes, and soil-side CP for buried lines.

The threat Stagnant, oxygen-poor water inside the tank and soil moisture under the floor corrode the one system that must never fail.

How we protect it Tank-bottom cathodic protection, CorroLogic vapour-phase inhibitor in the sand bed, internal linings and CP of the buried ring main.

The threat Atmospheric corrosion, corrosion under insulation where water is trapped against warm steel, and erosion in high-velocity lines.

How we protect it Coating programmes, CUI monitoring sensors under the cladding, insulation integrity inspection and erosion-resistant materials.