概述；高压铸钢角式截止阀的详细资料：主要性能规范遵循规范STANDARD设计与制造GB12233/GB 12235结构长度GB 12221/JB96（长系列）结构长度GB78/JB79（GB、HG、SH）压力试验GB/T 13927标志GB 12220供货GB/T12252法兰连接截止阀（角式）设计与制造符合中国国家标准1、基本结构形式：角式2、公称压力：PN1.6-4.0（MPa）3、公称通径：DN15-300（mm）1.6MPa主要连接尺寸DNinLDD1D2fbz-φdDoH1H2W151/265/909565452144-φ141002402657203/475/9510575552164-φ141002452707.525180/10011585652164-φ141202502758.53221/495/105135100782184-φ18140260290124021/2100/115145110852184-φ1814029032514502115/1251601251002204-φ18160300335196521/21451801451202204-φ18180355400278031551951601352224-φ182404004504210041752151801552248-φ182404554955012552002452101852268-φ18280530560641506240/2252802402102288-φ233206056508520082753352952652308-φ233606507701552.5MPa主要连接尺寸DNinLDD1D2fbz-φdDoH1H2W151/265/909565452164-φ141202452707.5203/475/9510575552164-φ141202502758.825180/10011585652164-φ14140260290113221/495/105135100782184-φ18140290325134021/2100/115145110853184-φ1816030033518502115/1251601251003204-φ18180355400316521/21451801451203228-φ18220400450398031551951601353228-φ182804504955010041752301901603248-φ233205305906012552002702201883288-φ25380600650751506240/2253002502183308-φ2540065077098200827536031027833412-φ23450700850170