Stainless steel butterfly valves according to the different understanding of 'there are a lot of different classification. The following detailed classification for everyone. A. Stainless steel butterfly valves according to the classification of structure form, 1) Center sealing butterfly valve ( 2) The single eccentric valve seal coal ( 3) The double eccentric sealing butterfly valve ( 4) Triple eccentric sealing tap valve 2. Stainless steel butterfly valves according to the sealing surface texture classification ( 1) Soft sealing butterfly valve. ( 2) Metal hard seal butterfly valve. Seal hard material from metal to metal hard material. 3. Stainless steel butterfly valves according to sealing form classification ( 1) Forced sealing butterfly valve ( 2) Pressurized sealing butterfly valve. Sealing pressure by seat or play a seal on the valve plate element charging - ( 3) Automatic sealing butterfly Industrial Valves. Sealing pressure produced by medium pressure automatically. Four. Stainless steel butterfly Industrial Valves according to the working pressure classification ( 1) The vacuum butterfly valve. Working pressure is lower than the atmosphere of butterfly valve. ( 2) Low pressure butterfly valve. Nominal pressure PN< 6 mpa butterfly valve. < p = ' ” > ( 3) Medium pressure butterfly valve. 5 - - - - - - - 4 mpa butterfly valve. ( 4) High pressure butterfly valves. Nominal pressure PN to 10. 0 - - - - - - - 0 mpa butterfly valve. ( 5) Super high pressure butterfly valve. Nominal pressure PN> Butterfly valve of 100 mpa. Five. Stainless steel butterfly valve according to the working temperature classification ( 1) The high temperature butterfly valve. t> The butterfly valve (450 C 2) Medium temperature butterfly valves. 120 C< t< The butterfly valve (450 C 3) Room temperature butterfly valves. A 40 c & lt; t< ; The butterfly valve (120 C 4) Butterfly valve at low temperature. A 100 & lt; t< A 40 C butterfly valve ( 5) Cryogenic butterfly valve. t< A butterfly valve 6 100 C. Stainless steel butterfly valve according to the connection mode classification ( 1) The wafer butterfly valve ( 2) Flanged butterfly valve ( 3) The lug butterfly valve ( 4) Welded butterfly valve
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