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The welding materials Mariso reconditions with are LR approved and the same as originally making ones. The combustion face is finish machined back to original sizes. The life span of reconditioned valve spindles is as good as brand new ones.

Major reconditioning procedures

• Pre-machining and cleaning damages or cracks on the combustion face
• Dye-check of valve spindle to verify surface defects
• Building up cut-off of damages or cracks by welding with stainless steel, and then restore to original size with a layer of satellite.
• Final machining Dye-check of valve spindle to verify defects
• Hard chroming of valve spindle back to size