Crall Sucker Rod Anodes afford an inexpensive, simple means of corrosion control caused by electrolysis in well fluids.

ELECTROLYSIS or Galvanic Action is caused by
• Dissimilar metals
• Temperature
• Velocity or friction of fluid
• Salt water (electrolyte)

These conditions which are normal for pumping installations create a galvanic potential which increases as the fluid progresses to the surface. As the voltage potential rises it reaches a point where it jumps into the rods or the tubing. This creates a pitting action which acclerates the chemical corrosion. The installation of Crall Anodes reverses the galvanic action and the corrosion then reacts on the anode rather than the tubing and the rods.