1、GB26640-2011前言本标准中“2规范性引用文件”、“3.1.2最小壁厚的计算”、“3.1.5中间压力额定值的螺纹连接端或焊接连接端钢制阀门”、“4.3铁制阀门最小壁厚计算”及“附录A钢制阀门公称尺寸和阀体端部基本内径的关系”为推荐性内容，其余为强制性内容。本标准的表1数据来源于ASME B16.34-2004表3-A,原ASME B16.34-2004表3A中没有的数值按插值法算出。本标准由中国机械工业联合会提出。本标准由全国阀门标准化技术委员会(SAC/TC188)归口，本标准起草单位：上海高科阀门制造有限公司、安微省白湖阀门厂有限责任公司、合肥通用机械研究院、江苏神通阀门有限公司、
2、武汉锅炉集团阀门有限责任公司、上海良工阀门厂有限公司。本标准主要起草人：杨恒、金成波、陈江山、高秉申、张逸芳、冯燕、毛剑韵。根据中华人民共和国国家标准公告(2017年第7号)和强制性标准整合精简结论，本标准自2017年3月23日起，转为推荐性标准，不再强制执行。GB26640-2011表1阀门壳体最小壁厚单位为毫米公称压力PN内径16254063100160d205011015026042076032.52.52.52.52.52.62.82.82.82.83.13.64.962.72.72.72.72.72.83.033.13.13.54.26.592.82.82.82.92.93.03.2
3、3.23.43.43.84.98122.92.92.93.033.13.33.43.73.74.25.69.6153.13.13.13.23.33.43.63.64.24.34.86.612183.33.33.33.43.53.63.83.94.74.85.37.714.3213.53.53.53.63.73.84.14.25.25.35.98.716.7243.73.73.83.944.14.34.45.75.86.49.719273.83.94.04.24.34.44.74.86.36.47.211.122.2314.24.34.44.64.74.85.05.16.66.78.112.82
4、6.1354.54.64.74.95.15.25.45.46.97.1914.530404.84.95.05.35.55.55.75.77.27.49.916.233.9455.15.25.35.75.95.96.067.57.810.817.937.9505.45.55.66.06.36.36.36.37.88.211.819.641.8555.55.65.86.26.56.56.36.38.38.712.721.345.7605.65.75.96.36.66.66.66.68.89.213.62349.6655.75.86.06.56.86.86.96.99.39.814.524.753.
5、6705.85.96.16.66.97.07.27.39.910.415.526.457.5755.966.26.77.17.27.57.610.410.916.428.161.4806.06.16.36.87.27.47.9810.911.517.329.865.3856.06.26.47.07.47.68.28.311.412.018.231.569.3906.16.36.57.17.57.78.48.611.912.619.133.273.2956.26.46.67.37.78.08.8912.513.220.134.977.11006.36.56.77.47.88.19.19.3131
6、3.72136.6811106.36.56.87.588.49.7101414.822.84088.91206.56.77.07.88.38.810.310.715.116.024.743.496.71306.56.87.18.18.79.311.011.416.117.026.546.9104.61406.777.38.399.711.51217.218.228.450.3112.41506.87.17.58.69.310.012.112.718.219.330.253.7120.31607.07.37.78.99.710.512.813.419.320.53257.1128.11707.27.57.99.21010.913.414.120.321.533.960.51362
