Taichang has three sizes S valves, DN200/DN230/DN260 three sizes. About realated sany wearing parts,which are used with sany Concrete Pump Wear Plate and cutting ring, sany concrete pump rubber spring, sany shaft sleeve and so on parts. Also we have many other sany concrete pump wearing parts at stock. Name Sany concrete pump parts S valve Material Welded pipe 16Mn, Shaft 38CrMoAl, 45# steel, Hardfaced inside pipe. Electrode HRC  > 63 Application concrete pump hopper wear parts. Lifetime 50,000cbm under standard pumping situation. Brand sany, zoomlion, putzmeister, kyokuto, sermac, xcmg,