Bucher Hydraulics SDVB-A-6-SL Valve Block

SDVB-A-6-SL is a Bucher Hydraulics stacking pressure-relief valve block (ISO Size 03) designed to provide independent relief across multiple ports in hydraulic circuits. It uses a two-stage, sliding-spool relief cartridge (DVPA-1-10) with screw-in cartridge technology and O-ring seals retained in counterbores for reliable leak-tight operation. It mounts in a stack arrangement with a DIN 24 340 A6 interface and ISO 4401 size 3, and mounting attitude is unrestricted. The valve features ports P, A, B and T and can provide relief in P-, A-, B-, T-, or A/B-line configurations depending on the assembly. Key specs include Qmax 80 L/min and pmax 350 bar. For the SDVB-P/ -A/ -B/ -T-6 configuration, mass is about 1.37 kg; the SDVB-AB-6 variant weighs 2.15 kg. The SDVB family is intended for compact, modular relief protection in multi-line hydraulic networks, enabling precise pressure control in space-constrained installations.