HYDAC賀德克比例溢流閥PDB16PZ 英文描述 The proportional pressure relief valve PDB16PZ is a pilot-operated cartridge valve - spool type. It is inversely controlled, i.e. it permits continuous adjustment of the relief pressure in reverse dependency of the electrical current. Cavity UNF 1 5/16-12. Qmax = 300 l/min Pmax = 350 bar