Chromium liner expendable costs are over four times the cost of Zirconia liners over the four year life of the project. The Zirconia liners have over 12,000 pumping hours and counting. Pumps using Chromium liners had costs of $47,000 vs. $11,000 for Zirconia liners. Chromium liner and piston usage resulted in thirty-two shutdowns compared to eight shutdowns for the Zirconia liners. Pumps with Chromium liners used fifty-five pistons vs. twelve pistons in Zirconia pumps. The original Zirconia liners are still in use. $50,000 $40,000 $30,000 $20,000 $10,000 Liner Cost Piston Cost Overall Cost $0 Expendables Cost Liners Used Pistons Used Expendables Count 60 50 40 30 20 10 0 Four Years and Counting – Zirconia Case Study Southwest Oilfield Products Zirconia Mud Pump Liners Outperform Conventional Hardened Steel Liners Due To The Unique Characteristics Of Zirconium Oxide. 16 14 12 10 8 6 4 2 0 Chromium Zirconia Diamond Material Hardness Zirconia Liners Steel Liners 10340 Wallisville Road Houston, Texas 77013 Phone (713) 675-7541 ZIRCONIA HIGH PERFORMANCE PUMP LINERS