Application : Petrochemical, Chemical Industry, Oil Application, Petroleum refinery Shaft Diameter : 0.625 - 4 inch Pressure : 25 bar(max) Velocity : 20 m/sec Face Material : Silicon, Carbon,Ceramic Metal Parts : NBR,Viton Temperature : 70-200 Degree C Being a customer oriented organization; we are deeply engaged in offering a wide array of Single Coil Spring Balance Seal. Other Details: Size di d d3 d4 d6 d7 L Ll 0.625 15.87 12.7 27 29 -- -- 40 -- 0.75 19.05 15.87 31 32.5 -- -- 43 -- 0.875 22.22 19.05 33.8 35.6 -- -- 43 -- 1 25.4 22.22 37 38.8 35.2 41.4 35 11.1 1.125 28.58 25.4 40 43 38.4 44.6 49 11.1 1.25 31.75 28.58 43.5 46.2 41.5 47.7 51 11.1 1.375 34.92 28.58 50 52.5 44.7 50.9 51 11.1 1.5 38.1 31.75 52.8 55.7 47.9 54.1 59 11.1 1.625 41.28 34.92 57.8 60.4 54.3 60.4 59 12.7 1.75 44.45 38.1 59 62.2 57.4 63.6 66 12.7