Plunger of the pump of high pressure

Plungers of the pumps which are pumping over chemically active environments are subject to influence of an erosion and corrosion. Production of plungers from special staly expensively also does not provide an acceptable resource.
Stainless alloys, as a rule, are expensive, difficult to process and do not provide sufficient resistance to wear. Wear-resistant corrosion-resistant coatings can significantly reduce the cost of the pump and extend its life. As a rule, the use of coatings allows a multiple to reduce the price of the plunger with a multiple increase in the resource.