HSZ06A021-3X/M01

The HSZ06A021-3X/M01 sandwich plate is produced by Bosch Rexroth within the HSZ Sandwich Plates series and is intended to route pressure lines in stacked hydraulic valve assemblies. It fits size 6 circuits, allowing integration with widely used subplates and directional valves. A porting pattern that follows DIN 24340 Form A aligns its mounting holes with neighboring elements for leak-free stacking. The plate sustains a maximum operating pressure of 315 bar, making it suitable for medium-pressure power units. External surfaces receive a Fe//Zn8//Cn//T0 coating that improves resistance to corrosion in oil-mist environments. Connection geometry conforms to DIN 3852-1 so that threaded tube fittings seat correctly against the machined faces without additional adaptors.

Overall dimensions of 90 × 44 × 40 mm permit installation inside compact manifolds while leaving clearance for adjacent components. Flow is carried through port channel P, and the opening is positioned on Side F to give lateral access when plates are stacked vertically. The pressure port uses a G 3/8 thread, and the internal form complies with DIN ISO 228 parallel pipe standards for consistent sealing with cutting-ring or bonded-seal connectors. An NBR seal isolates internal passages from external leakage under typical hydraulic oil temperatures. The plate weighs 1.2 kg, allowing assembly technicians to insert or remove it by hand without lifting equipment.