API 11AX VII-175 tungsten carbide valve ball

Tungsten Carbide valve ball and valve seat API Standard  Cobalt Alloy Valve Seats and Valve Balls  • 1. Valve balls and valve seats  are widely used  in oil fields. • 2. Valve Ball and Seat performance directly affects the use effect and service life of the sucker rod pumps.• 3. Each ball-and-seat combination is vacuum tested to ensure a perfect seal is obtained in all positions of contact. Main Features • 1. Material: Stainless steel; Cobalt Alloy, cast; Cobalt Alloy,Tungsten Carbide, Titanium Carbide . • 2. Standard: API 11AX .• 3. High resistance against corrosion and oxidation; Features: 1. Different material is available according to the corrosion characteristics.  2. Different heat treatment process Material performance table    CODE INSTRUCTION HARDNESS MATERIAL A1 Stainless steel Ball: HRC 58-65 UNS 41000&…