S-Valves, also called shifting elements, can be supplied in many different variants differentiated by pump-model. The most common type are the s-valve, which are commonly used by German producers – such as Putzmeister and Italian producers such as CIFA and SERMAC. For the Putzmeister machines there are also trunk type valves applied for the boom-pumps and CS type valves applied in the truckmixerpumps. Next type of the main-valvemodels are the ROCK-valves, which are used by SCHWING in their machines. S-VALVES, ROCK-VALVES and trunks are shifted by hydraulic cylinders from left to right side, sliding with the use of wear-ring on the wear-plate, thus allowing the concrete to be sucked from cylinders and pumped to the outlet. Lifetime of the S-VALVES and ROCK-VALVES can be significantly extended by a regeneration of these items which can be fully processed and machined by Taichan Company.
| Name | Big mouth S valve for Putzmeister concrete pump |
| Size | DN230 |
| Pump model | S2218,S2318 |
| Processing method | Forging |
| Special process | Heat treatment, Annealing process |
| Lifetime | 50000cbm-80000cbm |
| Material | 38CrMoAl,16Mn,45steel |
| Quality garantee | No shaft broken,No pipe explosion |
| Package | Bubble wrap&wooden case |
| Delivery | By sea/air/Express |
| Color | Usually yellow for Putzmeister/Per your request |
| Weight | About 120kg |
| Custom Service | Powder metallugy products/Custom machinery products availablemeister pump |
| Wear glasses | Cutting ring | Rubber spring | Piston ram |
| Pipeline | Sealings | Upper housing | Bearing surpport |
| Rubber hose | Elbow | Clamp | Discharge venting |
| Mixing shaft | Mixing vane | Hopper | Sponge cleaning ball |
| Cylinder | Lithium base grease | Hydraulic oil | Wear sleeve |
