HYDAC賀德克比例溢流閥PDBM06020 英文描述 The proportional pressure relief valve PDBM06020 is a direct acting cartridge valve - poppet type. It permits continuous adjustment of the relief pressure, depending on the electrical current. Cavity (metric) M 20 x 1.5. Qmax = 10 l/min Pmax = 350 bar