DFM-32-40-P-A-KF DFM-32-50-P-A-GF DFM-32-50-P-A-KF DFM-32-80-P-A-GF DFM-32-80-P-A-KF DFM3-48S5 DFM350 DN32 250-2500L/H DFM3518C DFM3A0 DFM3B0