概述；秦工这类阀门全部采用美国国家标准（ANSI）及美国石油学会标准（API）的连接，结构尺寸，内件采用（GB）尺寸。 ??一、金属密封美标柱塞阀主要连接、结构尺寸DN（mm）尺寸（mm）UZ41H（Y）-150Lb U41SM~150Lb1/2”3/4”1”11/4”11/2”2”21/2”3”4”5”6”8”10”12”14”16”L108117127140165203216241292356406405622698787914H1701902102502703003403804204505406407408509701100W100100120140160180200240270310340400520640760900D8998108117127152178190229254279343406483533597K60.57079.58998.5120.5139.5152.5190.5216241.5298.5362432476540D1354351647392105127157186216270324381413470t10111213151618192424262931323537n-φ4-154-154-154-154-154-194-194-198-198-228-228-2212-2512-2512-2916-29DN（mm）尺寸（mm）UZ41H（Y）-300Lb U41SM~300Lb1/2”3/4”1”11/4”11/2”2”21/2”3”4”5”6”8”10”12”14”16”L152178203216229267292318356400444559622711838864H1701902102502703003403804204605406407408509801100W100100120140160180200240280310340400520640760900D95117124133156165190210254279318381445521584648K66.582.58998.5114.5127149168.5200235270330387.5451514.5571.5D1354351647392105127157186216270324381413470t15161819212326293235374248515458n-φ4-154-194-194-194-228-198-228-228-228-2212-2212-2516-2916-3220-3220-35?