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1、SAE/MSSAE/MS直直管管螺螺纹纹SAE/MSSAE/MS直直管管螺螺纹纹接接头头的的允允许许压压力力额额定定值值(316/(316/碳碳钢钢)螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数基基面面上上的的螺螺纹纹直直径径牙牙型型角角螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数不不可可定定位位位位置置可可调调型型（英英寸寸）大大径径中中径径小小径径（英英寸寸）psigpsigMpaMpapsigpsigMpaMpa5/16247.9387.2496.792605/1624456831.5456831.57/162011.113 10.2879.7387/1620456831.5456831.51/22012.71
2、1.875 11.3251/220456831.53626259/161814.288 13.325 12.5599/1618456831.53626253/41619.0518.019 17.3313/416456831.53626251-1/161226.988 25.613 24.6951-1/16123626252900201-5/161233.338 31.963 31.0461-5/1612290020232016BSPBSP、RpRp、G G、PFPF、BSPTBSPT锥锥管管螺螺纹纹M M公公制制直直螺螺纹纹螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数基基面面上上的的螺螺纹纹直直径径牙牙型
3、型角角螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数基基面面上上的的螺螺纹纹直直径径牙牙型型角角（英英寸寸）大大径径中中径径小小径径（MMMM）大大径径中中径径小小径径1/16287.7327.1426.56155M6165.354.917601/8289.7829.1478.566M887.356.9171/41913.157 12.301 11.455M10109.358.9173/81916.662 15.80614.95M121.51211.03 10.3761/21420.955 19.793 18.631M141413.03 12.3765/81422.911 21.749 20.587M161
4、615.03 14.3763/41426.441 25.279 24.117M181817.03 16.3767/81430.201 29.039 27.877M202019.03 18.37611133.24931.7730.291M222221.03 20.3761-1/81137.897 36.418 34.939M242423.03 22.3761-1/41141.9140.431 38.952M2722725.7 24.8351-1/21147.803 46.324 44.845M303028.7 27.8351-3/41153.746 52.267 50.788M333331.7
5、30.83521159.614 58.135 56.656M363634.7 33.835NPTNPT、Z Z锥锥管管螺螺纹纹BSPBSP、R R、R1R1、RcRc，ZGZG、RTRT、PTPT、BSPTBSPT锥锥管管螺螺纹纹螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数基基面面上上的的螺螺纹纹直直径径牙牙型型角角螺螺纹纹尺尺寸寸螺螺纹纹牙牙数数基基面面上上的的螺螺纹纹直直径径牙牙型型角角（英英寸寸）大大径径中中径径小小径径（英英寸寸）大大径径中中径径小小径径1/16277.8947.1426.398601/16287.7237.142 6.561551/82710.2429.4898.7371/828
6、9.7289.147 8.5661/41813.616 12.487 11.3581/41913.15712.3 11.4453/81817.055 15.926 14.7973/81916.662 15.81 14.951/21421.224 19.772 18.3211/21420.995 19.79 18.6313/41426.569 25.117 23.6663/41426.441 25.28 24.117111.5 33.228 31.461 29.69411133.249 31.77 30.2911-1/411.5 41.985 40.218 38.4511-1/41141.9140.43 38.9521-1/211.5 48.054 46.28744.521-1/21147.803 46.32 44.845211.5 60.092 58.325 56.55821159.641 58.14 56.656镀锌管一般采用英制。1 英寸=25.4毫米=8英分。1/2 是 四分(4英分)DN15。3/4 是 六分(6英分)DN20管名外径（mm）内径（mm）4分管20156分管25201寸管3225镀锌管一般采用英制。1 英寸=25.4毫米=8英分1/2 是 四分(4英分)DN153/4 是 六分(6英分)DN20