HSZ22B563-3X/5-200M01

The HSZ22B563-3X/5-200M01 sandwich plate is manufactured by Bosch Rexroth as part of the HSZ Sandwich Plates series. It acts as a mounting interface and pressure control stage in hydraulic automation circuits. A pilot-operated pressure reducing valve is integrated, so secondary pressure is limited before it reaches downstream actuators. The pressure reducing valve is size 20, providing a flow path suitable for medium to high capacity machines. Secondary pressure can be set to 200 bar, allowing precise regulation below the main line. A sleeve with a hexagon serves as the adjustment element, enabling tool-based setting changes on site. There is no check valve in the pressure reducing valve, which allows free return flow when system conditions demand it. The housing is rated for a maximum operating pressure of 315 bar, ensuring structural safety under typical industrial loads. A porting pattern conforming to DIN 24340 Form A and ISO 4401 lets the plate bolt directly onto standard subplates, and all connections are accessed on the mounting side labeled E.

The plate includes channels P, A, B, T, X, and Y, allowing it to route pump supply, actuator work ports, tank return, and pilot lines within one element. The P port is located on side F and is tapped G1/4, simplifying connection to common pipe sizes. External connections follow DIN 3852-1 geometry, while the external thread standard corresponds to ISO 228 so fittings seat correctly without additional adapters. The Y port is supplied plugged and pressure-tight, which blocks the drain path when an external return is unnecessary. Overall dimensions are 210 mm × 117 mm × 150 mm, so the plate occupies modest space inside a manifold stack. A weight of 32.0 kg reflects the solid steel construction required to withstand full operating pressure. These characteristics combine to provide a compact, easily mounted pressure reduction stage with standardized ports and threads for reliable integration into hydraulic equipment.