Plungers are offered in the following materials:
For use in medium to severe pumping conditions. Made by spraying an alloy powder at high temperature on a steel tube. This makes the plunger very resistant to corrosion and abrasion.
For use in severe abrasive conditions where corrosion is minimal. Chrome plating is applied to the OD giving the plunger and extremely hard surface.
A spray metal plunger with monel pins. The monel pins give the plunger better corrosion resisting properties and pin strength.
A spray metal plunger with nickel plated pins. The nickel pins give the plunger better corrosion resisting properties.
For use with PA and split ring plungers. Stainless steel is a good corrosion and abrasion resistant material perfect for housing rings.