Erosion & Abrasion

Fan blade and deflector erosion protection

Particle-laden gas streams erode fan blade leading edges, tips, and deflectors, dropping airflow and unbalancing the rotor over a single campaign.

The problem

The need for fan blade and deflector erosion protection

BHI Coatings performs fan blade and deflector erosion protection across Alvin and the Texas Gulf Coast. One campaign of particle-laden gas is enough to cut into fan blade leading edges, tips, and deflectors. The eroded profile costs airflow and shifts mass on the rotor, and the vibration that follows shortens bearing and shaft life. An unbalanced ID fan can take the whole unit offline.

Our method

How BHI Coatings does fan blade and deflector erosion protection

We rebuild the eroded edges cold with a metal-repair composite, then overcoat them with an erosion-resistant ceramic layer that brings the aerodynamic profile back, in the field or in our shop. The Belzona 1000 series rebuilds the geometry without arc-weld heat into the thin blade root. No hot work, so nothing distorts a slender blade.

Typically applied with Belzona 1111, Belzona 1321, matched to the service conditions.

The result

The fan goes back with its blade geometry restored and a wear-resistant face on it, so airflow recovers and the rotor runs balanced through the next campaign.

Split pump casing on a shop floor showing the volute passage and cutwater coated dark blue-gray
24-hour on-call service

Contact BHI Coatings

Have equipment that needs to stay in service?

Tell us what is failing. We respond quickly, and we offer 24-hour on-call service.

Call (281) 585-1600