| 本标准参照采用ISO2531—86《耐压管道用球墨铸铁直管、管件及附件》，球墨铸铁管件的使用应参照有关管道设计、施工规范。 1 主题内容与适用范围 本标准规定了柔性接口球墨铸铁管件的分类、尺寸、外形、重量、技术要求、试验方法、检验规则、标志、包装和质量证明书等。 本标准适用于输送水、煤气及其他流体管道用柔性接口球墨铸铁管件（以下简称管件）。2 引用标准 GB 223 钢铁及合金化学分析方法 GB 228 金属拉伸试验方法 GB 231 金属布氏硬度试验法 GB 1348 球墨铸铁件 GB 8715 柔性机械接口铸铁管件 GB 13295 离心铸造球墨铸铁管3 分类 管件采用柔性接口、按接口形式分为机械、滑入式两类。机械接口形式分为N1型、X型和S型三种。滑入式接口形式为T型。根据需方要求，亦可采用其他接口形式。 接口形式应在合同中注明。 管件所用的压兰、螺栓、螺母、胶圈、支撑圈子等按GB 13295附录中有关规定执行。4 尺寸、外形、重量4.1 尺寸4.1.1 接口形式 管件的接口形式为N1型见表1、图1（略），X型见表2、图2（略），S型见表3、图3（略），T型见表4、图4（略）。法兰见图5（略）、表5、表6、表7、表8。表1 N1型承插口尺寸公称口径各部尺寸螺栓重量kg 孔径螺纹数量个mmDgD1D2D3D4AcPLFRML′d′Thn承口突部100262210138.0118.01812951075404518023M20410.1150313262189.0169.0100614.4200366312240.0220.013117719017.6250418366293.6271.621128326.9300471420344.8322.8141385833.0350524474396.0374.015872001038.7400578526447.6425.624148946.8500686632552.0528.016159750241464.0600794740654.8630.82611016101601688.0700898844757.0733.0171710696.0表2 X型承插口尺寸公称口径各部尺寸螺栓重量kg 孔径螺纹数量个mmDgD1D2D3D4AcPLFRML′d′Thn承口突部100262210126.0118.01812951075325018023M20410.1150313262177.0169.0100614.4200366312228.0220.013117719017.6250418366279.0271.62112834026.9300471420330.8322.8141385833.0350524474382.0374.015872001038.7400578526433.6425.62414895046.8500686632536.0528.016159755241464.0600794740638.8630.82611016101601688.0700898844741.0733.0171710696.0表3 S型承插口尺寸公称口径各部尺寸螺栓重量kg 孔径螺纹数量个mmDgD1D2D3D4D5AcPFRR1LXWVd′Thn承口突部100252210122.0118.015018129041.624.0101801020 0-1.215 23M2048.6150297254173.0169.020195611.8200365320226.0220.02541310043.325.019017.5250418366278.0271.63062147.627.51122.3300465416330.0322.83591410549.428.51525 0-1.52 827.7350517475382.0374.041152.030.033.6400577530433.6425.6163241511053.731.0122001241.6500678630536.0528.05671611559.834.52455.7600792740638.8630.86712664.137.0131473.3700910854741.0733.07751712068.439.51699.2注：S型插口槽根据需方需要选用，并在合同中注明。表4 T型承插口尺寸公称口径各部尺寸重量kg mmDgd1d2d3d4d5d6d7d8nft1t2t3t4t5t6t7t8(t9)t10r1r2r3r4r5承口突部100163143.0±1120.5±1118 1-2.8 138.9±1123.4±2142.0155.78.43.5 0-0.3 8840126.0 0-1.5 58483.039.08845417.0684.3150217195.0172.5170 1-2.9 190.6175.3195.6209.09.19443.09418.5747.1200278250.0-1.5-1 224.5-1.5-1 222 1-3 245.2-1.5-1 227.8251.0265.09.84.010045157.0610566.248.01006535.07010.3250336301.5276.5274 1-3.1296.9279.7305.0318.010.510547586.848.010536.07214.2300393356.5 1.8-1 328.5 1.8-1 326 1-3.3 351.7 1.8-1 332.1368.5374.011.24.511050178.5712617.251.81106737.07418.9350448408.0380.5378 1-3.4 403.4383.8410.5427.211.9 0-1 5.156.6113624.59823.7400500462.0 2.1-1 431.5 2.1-1 429 1-3.5 457.2 2.1-1 435.8±2.5463.0482.412.65.055199.58146860.0116826.010429.5500604 |
