These type VZP use spring loaded balls or cones as valve elements and therefore do not show any leakage. They are manifold mounting and are available in one size only. The twin lay-out of the 3/2- and 2/2-way directional seated valve elements, identical or similar to valves with single lay-out, and the actuation solenoids are housed in a shared valve body, making them very compact. Depending on pairing, these valves can fulfill either one 4/4-, 4/3-,3/3-way function or two independent 3/2- and 2/2-way functions. When compared with single valves of conventional lay-out, the twin design is more advantageous due to lower spatial requirements and the possibility to mount pressure switches monitoring the consumer pressure. Especially the valve banks type BVZP consisting of several valves of this type, connected in parallel, propel these features and benefits.