鍦ㄥ湅(gu贸)瀹舵(bi膩o)婧�(zh菙n)GB12459-2005閫欏€�(g猫)妯�(bi膩o)婧�(zh菙n)涔嬩腑,鐣板緫褰庨牠鍙兘涓€鍊�(g猫)闀�(zh菐ng)鍗婂緫鐨勮(gu墨)鏍�,娌掓湁璞�45搴﹀綆闋垏90搴﹀綆闋強180搴﹀綆闋箣涓湁闀�(zh菐ng)鍗婂緫鍜岀煭鍗婂緫涔嬪垎.鍦ㄦ(bi膩o)婧�(zh菙n)涔嬩腑,鐣板緫褰庨牠鐢�90E(L)R渚�(l谩i)琛ㄧず.閫欑ó褰庨牠鏄緸50闁嬪鐨�,鍐嶅皬浜嗗湅(gu贸)妯�(bi膩o)涓婂氨娌掓湁浜�.DN50~DN90 閫欏洓绋暟寰戝綆闋殑璁婂緫鏈変笁绱�(j铆).鑰屽緸DN100~DN150 鍓囪畩鎴愪簡鍥涚礆(j铆).寰濪N200~DN400 鍙堣畩鎴愪簡涓夌礆(j铆)浜�.寰濪N450閫欏€�(g猫)绱�(j铆)鍒ュ墖鏄湁涓夊€�(g猫)璁婂緫鐨勭瓑绱�(j铆).DN500閫欏€�(g猫)灏哄涓婇潰鏈�5鍊�(g猫)绛夌礆(j铆)鐨�.DN600鏈�6鍊�(g猫)绛夌礆(j铆)鐨勮畩寰戜簡.鍐嶅ぇ瑕�(gu墨)鏍肩殑璁婂緫褰庨牠鍓囧氨鍦ㄦ(bi膩o)婧�(zh菙n)鏇镐笂娌掓湁浜�.鍦℅B12459-2005涓暟寰戝綆闋殑鏈€灏忓昂瀵告槸DN50鐨�,鑰屾渶澶у昂瀵告槸DN600鐨�.鐝�(xi脿n)鍦ㄧ暟寰戝綆闋殑鐢熺敘(ch菐n)宸ヨ棟宸茬稉(j墨ng)鏄緢鎴愮啛浜�.
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