We're looking for a method to test butterfly valve seats for resistance to typical damage scenarios such as gravel or tools being trapped in the valve upon closing. Are there any industry standards or common practices for this type of evaluation?
Application is potable water in ductile iron...
"Coating" is a pretty broad term. Conversion coatings like nitriding, anodizing, etc. change surface characteristics without changing dimensions. Thermal spray, Plasma Transferred Arc, laser cladding and others add a layer of different material to the substrate, changing the geometry...
