Flange material comparison

　　In fact, the use of asbestos rubber sheet in foreign countries have severe constraints, such as the United States DuPont rules flammable media shall not be used asbestos rubber sheet, because once the fire, the choice of asbestos rubber Dn50-Dn300 Carbon Steel Plate Flange joints is difficult to ensure that no two Missed leaks. Japan "oil industry asbestos rubber sheet" rules rules flammable and toxic gas The use of asbestos rubber sheet conditions for the 0 ~ 260 ℃, ≤ 1.0MPa, water, air, water vapor is -50 ~ 260 ℃, ≤ 3.0MPa. And, foreign norms on the asbestos rubber sheet functional indicators than the domestic demand for similar products to high.