685  Mechanical Seal For big compressors and industrial pumps Replacing the mechanical seal of Burgmann MFL85N Operational Conditions: Temperature: -20℃ to +200℃ Pressure: ≤2.1MPa Speed: ≤23m/s Materials: Stationary RingTC, Silicon Carbide Rotary RingCarbon ,Silicon Carbide,TC Secondary SealNBR,EPDM,Viton BellowsSteel Spring and Metal PartsSteel Applications: Oil, light hydrocarbon, aromatic Hydrocarbon, organic solvents, week acids, ammonia d (mm) D3 D2 L1 L3 16 30 27 32.5 10 18 32 33 30.5 11.5 20 33.5 35 30.5 11.5 22 36.5 37 30.5 11.5 24 39 39 28.5 11.5 25 39.6 40 28.5 11.5 28 42.8 43 31 11.5 30 45 45 31 11.5 32 46 48 31 11.5 33 48 48 31 11.5 35 49.2 50 31 11.5 38 52.3 56 31 14 40 55.5 58 31 14 43 57.5 61 31 14 45 58.7 63 31 14 48 61.9 66 31 14 50 65 70 32.5 15 53 682 73 32.5 15 55 70 75 32.5 15 58 71.7 78 37.5 15 60 74.6 80 37.5 15 63 79 83 37.5 15 65 84.1 85 37.5 15 68 87.3 90 34.5 18 70 87.3 92 42 18 75 95 97 42 18 80 98.4 105 41.8 18.2 85 104.7 110 41.8 18.2 90 111 115 46.8 18.2 95 114 120 47.8 17.2 100 117.4 125 47.8 17.2