The most important component of a two-piston concrete pump is the concrete valve. Under high pressure, it switches between the two delivery cylinders and ensures that the flow of concrete from the delivery cylinders into the outlet is as friction-free as possible. With the unique ROCK valve, all concrete pumps from SCHWING have a concrete valve, which is characterized by extremely low wear, a long service life and a very good cleaning ability. Developed by SCHWING on the basis of the negative experiences with the S-pipe also developed by SCHWING and put on the market in 1983, it is still the benchmark for economic efficiency and robustness.
