DL922-2005火力发电用钢制通用阀门订货、验收导则

1、DL922-2005火力发电用钢制通用阀门订货、验 收导则DL/T 92220051 范畴本标准规定了火力发电用钢制通用阀门的选型、订货和验收的有 关要求。本标准适用于最高工作温度不大于 600C,最高公称压力不大于6 0.0MPa的火力发电用铸造、锻造、法兰、焊接、对夹及螺纹连接式的钢制 闸阀、截止阀、节流阀、止回阀、蝶阀、球阀、旋塞阀等各类通用阀门。2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是 注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版 均不适用于本标准，然而，鼓舞按照本标准达成协议的各方研究是否可使 用这些文件的最新版本。凡是不注日期的引

2、用文件，其最新版本适用于本 标准。GB/T 3323钢熔化焊对接接头射线照相和质量分级GB/T 4622.13 缠绕式垫片GB/T 6414铸件尺寸与机械加工余量GB/T 9113.1平面、突面整体钢制管法兰GB/T 9113.2凹凸面整体钢制管法兰GB/T 9113.3桦梢面整体钢制管法兰GB/T 9113.4环连接面整体钢制管法兰GB/T 9115.1平面、突面对焊钢制管法兰GB/T 9115.2凹凸面对焊钢制管法兰GB/T 9115.3桦梢面对焊钢制管法兰GB/T 9115.4环连接面对焊钢制管法兰GB/T 9124钢制管法兰 技术条件GB/T 12221法兰连接金属阀门结构长度GB/T

3、 12222多回转阀门驱动装置的连接GB/T 12223部分回转阀门驱动装置的连接一样要求碳素钢锻件技术条件GB/T 12224钢制阀门GB/T 12228 通用阀门GB/T 12229 通用阀门GB/T 12230通用阀门GB/T 12234通用阀门碳素钢铸件技术条件奥氏体钢铸件技术条件法兰和对焊连接钢制闸阀GB/T 12235通用阀门法兰连接钢制截止阀和升降式止回阀2005-02-14 公布2005-06-01 实施""中华人民共和国国家进展和改革委员会发 布GB/T 12236通用阀门GB/T 12237通用阀门GB/T 12238通用阀门GB/T 13927 通用阀

4、门钢制旋启式止回阀法兰和对焊连接钢制球阀法兰和对夹连接蝶阀压力试验GB/T 15188.1GB/T 15188.2GB/T 15188.3GB/T 15188.4阀门的结构长度 阀门的结构长度 阀门的结构长度 阀门的结构长度对焊连接阀门对夹连接阀门 内螺纹连接阀门 外螺纹连接阀门DL/T 531电站高温高压截止阀、闸阀技术条件DL/T 746电站蝶阀选用导则DL/T 869火力发电厂焊接技术规程JB/T 1613锅炉受压元件 焊接技术条件JB/T 5263电站阀门铸钢件 技术条件JB/T 6439阀门受压铸钢件磁粉探伤检验JB/T 6440阀门受压铸钢件射线照相检验JB/T 6902阀门铸钢件

5、液体渗透检查方法JB/T 6903阀门锻钢件超声波检查方法JB/T 7370柔性石墨编织填料JB/T 7927阀门铸钢件外观质量要求JB/T 8528 一般型阀门电动装置技术条件JB/T 8529隔爆型阀门电动装置技术条件JB/T 9625锅炉管道附件承压铸钢件技术条件JB/T 9626锅炉锻件技术条件ANSI B16.34 法兰 螺纹和焊接端连接的阀门3订货差不多要求1.1 材料阀门耐压件主体材料见表1。表1耐压部位的主体材料钢 种铸 钢锻钢件或棒料最高适用温度碳素钢WC减ASTMA216WCB25或 ASIMA105427 c0.5%铝钢WCMASTMA217WC1ASTMA182F146

6、8 c1.25% 铭0.5%铝钢WC喊ASTMA217WC615CrMo或 ASTMA182F11540 c2.25% 铭1吨目钢WC晒ASTMA217WC9ASTMA182F22570 c9铭1铝矶钢ASTMA217C12AASTMA182F91600 c5%§铝钢ZGCr5MoCr5Mo550 c铭铝矶钢ZG20CrMoV12Cr1MoVZG15Cr1Mo1V15Cr1Mo1V570 c奥氏体钢ZG1Cr18Ni9Ti1Cr18Ni9Ti650 cZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti阀门材料选用应符合以下有关标准要求，并提供材料的化学成分、力 学性能及质量

7、报告：a）铸钢件应符合JB/T 5263及JB/T 9625的规定：b）锻件应符合JB/T 9626的规定；c）碳素钢锻件应符合 GB/T 12228的规定；d）碳素钢铸件应符合 GB/T 12229的规定：e）不锈钢钢铸件应符合 GB/T 12230的规定；f）柔性石墨编织填料应符合JB/T 7370的规定；g）缠绕式垫片应符合GB/T 4622的规定。1.2 压力一温度额定值压力一温度额定值分为两类：标准压力级（第1类）和专用压力级（第 2类），见表2表19,表中规定了各耐压部位的主体材料在一定使用温度 下的最高承诺压力。铭铝矶钢和奥氏体钢的压力一温度额定值按GB/T 9124的规定。法兰

8、式阀门的使用压力不应大于法兰的许用压力和本标准规定的 压力一温度额定值。a）第1类阀门，对应压力等级为 PN16、PN20、PN25、PN40、PN50、 PN63、PN67、PN100、PN110、PN150、PN160、PN260、PN320、PN420、PN600时，见表2表6;对应压力等级为150、300、600、900、15 00、2000、2500、3500 磅级时，见表 7表 11。第1类对法兰式及焊接式阀门都适用。b）第2类阀门，对应压力等级为 PN260、PN320、PN420、PN600时， 见表12表15;对应压力等级为1500、2000、2500、3500磅级时，见表1

9、 6表19。止匕外，要在表示压力等级数字的末尾附上符号。第2类适用于焊接式阀门。表2碳素钢WCB压力一温度额定值（第1类）温度压力等级16254063100160320C205067110150260420600分级表示的工作压力MPa-29381.62.02.54.15.26.57.09.610.415.616.526.332.743.460.7931.41.82.33.74.75.96.38.59.514.215.023.729.739.555.41491.31.62.13.64.65.76.18.39.313.914.723.028.838.553.82041.11.41.93.44.4

10、5.66.08.28.913.414.222.327.837.152.02601.01.21.73.24.25.25.67.78.412.613.321.026.235.049.13150.81.01.42.83.84.85.17.17.711.512.219.324.032.044.93430.70.91.32.73.74.75.07.07.511.312.018.923.531.444.03710.60.81.22.73.74.75.07.07.511.211.818.723.331.243.73990.50.71.12.63.54.44.76.57.110.611.217.722.129

11、.541.34270.50.61.02.12.93.63.95.35.88.79.214.518.124.133.7454(0.4)(0.5)(0.7)(1.4)(1.9)(2.3)(2.5)(3.4)(3.7)(5.7)(6.0)(9.4).7)(15.7)(21.9)注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用表3 0.5Mo钢 WC1压力一温度额定值（第1类）温度C压力等级16254063100160320205067110150260420600分级表示的工作压力MPa-29381.51.92.43.94.96.26.

12、69.09.814.615.524.430.540.757.0931.41.82.33.84.85.96.38.79.514.315.123.829.839.822.71491.31.62.13.64.65.76.18.49.213.714.522.928.638.253.52041.11.41.93.44.55.66.08.39.013.514.322.528.137.552.52601.01.21.73.24.35.35.88.08.713.113.921.827.236.451.03150.81.01.53.14.25.25.67.88.512.713.421.226.535.449.6

13、3430.70.91.43.04.15.15.57.58.212.413.120.725.834.548.33710.60.81.32.94.05.05.37.38.012.012.720.024.933.246.63990.50.71.22.73.74.75.06.97.511.211.818.723.331.143.64270.50.61.12.53.54.44.76.57.110.711.317.822.229.741.64540.40.50.92.43.44.24.56.26.810.210.817.121.328.540.0482(0.3)(0.3)(0.7)(2.1)(3.1)(3

14、.9)(4.2)(5.8)(6.3)(9.5)(10.0)(15.7)(19.6)(26.3)(36.9)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用表4 1.25Cr-0.5Mo钢WC6压力一温度额定值（第1类）温度C压力等级16254063100160320205067110150260420600分级表示的工作压力MPa-29381.62.02.54.15.26.57.09.610.515.816.726.332.943.961.5931.41.82.34.05.26.57.09.610.515.816.726.332.

15、943.961.51491.31.62.13.85.06.36.89.310.115.216.125.431.742.359.22041.11.41.93.74.96.16.58.99.714.615.524.330.440.656.92601.01.21.73.54.75.86.28.59.314.014.823.429.238.954.53150.81.01.53.14.25.25.67.88.512.813.521.226.735.449.63430.70.91.43.04.15.15.57.58.212.413.120.725.834.548.33710.60.81.32.94.05.

16、05.37.38.012.012.720.024.933.246.63990.50.71.22.73.74.75.06.97.511.211.818.723.331.143.64270.50.61.12.63.64.44.76.57.110.711.317.822.229.741.64540.30.41.02.43.44.04.36.26.810.210.817.121.328.540.04820.30.30.72.13.13.94.25.86.39.510.015.819.726.336.95100.20.20.51.52.22.83.04.14.56.77.111.214.018.726.

17、25380.10.10.31.01.51.82.02.73.04.54.77.69.412.617.75650.1 a0.10.20.71.01.21.31.82.03.03.15.06.28.411.8593(0.1) a(0.1)(0.1)(0.4)(0.6)(0.8)(0.9)(1.2)(1.3)(2.0)(2.1)(3.4)(4.2)(5.6)(7.9)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用。a此数据， 法兰式阀门不适用表5 2.25Cr-1Mo钢WC9压力一温度额定值（第1类）温度C压力等级1625406310

18、0160320205067110150260420600分级表示的工作压力MPa-29381.62.02.54.15.26.57.09.610.515.816.726.332.943.961.5931.41.82.34.05.26.57.09.610.515.816.726.332.943.961.51491.31.62.13.95.16.46.89.410.215.416.325.632.042.759.82041.11.41.93.74.96.26.69.19.914.815.724.830.941.359.12601.01.21.73.54.75.86.28.59.314.014.923

19、.429.238.954.53150.81.01.53.14.25.25.67.88.512.813.521.326.535.449.63430.70.91.43.04.15.15.57.68.312.413.120.725.834.548.33710.60.81.32.94.05.05.37.38.012.012.720.024.933.246.63990.50.71.22.73.74.75.06.97.511.211.818.723.331.143.64270.50.61.12.63.64.44.76.57.110.711.317.822.229.741.64540.40.40.92.43

20、.44.34.66.26.810.310.917.121.328.540.04820.30.30.72.13.13.94.25.86.39.510.015.818.924.236.95100.20.20.61.82.63.23.54.85.37.98.313.216.522.131.05380.10.10.31.21.82.22.43.33.65.55.89.211.415.221.45650.1 a0.10.20.81.21.51.62.32.53.73.96.17.610.214.3593(0.1) a(0.1)(0.2)(0.5)(0.8)(0.9)(1.0)(1.3)(1.5)(2.3

21、)(2.4)(3.8)(4.7)(6.4)(9.0)注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用。a此数据， 法兰式阀门不适用表6 9Cr-1Mo-V钢C12A压力一温度额定值（第1类）温度C压力等级16254063100160320205067110150260420600分级表示的工作压力MPa-29 381.62.02.54.15.26.57.09.610.515.816.726.332.943.961.5931.41.82.34.05.26.57.09.610.515.816.726.332.943.961.51491

22、.31.62.13.95.16.36.89.410.215.416.325.632.042.759.82041.11.41.93.74.96.16.58.99.714.615.724.330.940.657.92601.01.21.73.54.75.86.28.59.314.014.823.429.238.954.53150.81.01.53.14.25.25.67.88.512.813.521.226.535.449.63430.70.91.43.04.15.15.57.58.212.413.120.725.834.548.3表6（续）温度C压力等级162540631001603202050

23、67110150260420600分级表示的工作压力MPa3710.60.81.32.94.05.05.37.38.012.012.720.024.933.246.63990.50.71.22.73.74.75.06.97.511.211.818.723.331.143.64270.50.61.12.63.64.44.76.57.110.711.317.822.229.741.64540.40.41.02.43.44.04.36.26.810.210.817.121.328.540.04820.30.30.72.13.13.74.25.86.39.510.015.819.726.336.951

24、00.20.20.61.82.73.33.64.95.48.18.613.516.922.631.75380.1 a0.10.51.72.53.13.44.75.17.68.012.816.021.329.85650.1 a0.10.51.72.53.13.44.65.07.57.912.615.721.129.85930.1 a0.10.41.42.12.62.83.84.26.36.710.613.217.724.76210.1 a0.10.31.11.61.92.02.83.14.74.97.89.713.018.36490.1 a0.10.20.71.01.21.31.82.03.03

25、.15.06.28.411.8注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用。a此数据， 法兰式阀门不适用表7碳素钢 WCB压力一温度额定值（第1类）温度C压力等级1503006009001500200025003500分级表示的工作压力MPa-29 381.975.1010.2015.3125.5534.0442.5459.57931.794.629.3113.9623.2731.0338.7854.301491.594.529.0713.5822.6230.1737.7152.812041.384.388.7613.1021

26、.8629.1336.4050.992601.174.148.2712.3820.6527.5334.4148.163160.973.797.5511.3118.8625.1531.4444.023430.863.697.4111.1018.5124.6830.8543.203710.763.697.3411.0318.3824.4930.6142.853990.663.486.9610.4117.3823.1728.9640.544270.552.835.698.5214.2018.9323.6533.10454(0.45)(1.86)(3.69)(5.55)(9.24)(12.31)(15

27、.38)(21.51)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用表8 0.5Mo钢 WC1压力一温度额定值（第1类）温度C压力等级1503006009001500200025003500分级表示的工作压力MPa-29 381.834.799.5814.3823.9331.9139.8955.85931.794.699.3814.0323.4131.2239.0254.641491.594.529.0013.4822.4829.9837.4752.472041.384.418.8313.2422.0629.4136.7551.

28、472601.174.288.5812.8621.4128.5735.7249.993160.974.178.3412.5120.8627.8134.7548.643430.864.078.1012.1720.2727.0533.8247.333710.763.937.8311.7619.5826.1032.6145.683990.663.657.3411.0018.3424.4430.5442.754270.553.527.0010.5217.5123.3429.1740.824540.453.346.7210.0716.7922.3927.9939.20482(0.35)(3.10)(6.

29、21)(9.31)(15.48)(20.65)(25.82)(36.16)注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用表9 1.25Cr-0.5Mo钢WC6压力一温度额定值（第1类）温度C压力等级1503006009001500200025003500分级表示的工作压力MPa-29 382.005.1710.3415.5125.8634.4743.0960.33931.795.1710.3415.5125.8634.4743.0960.331491.594.969.9614.9324.8933.1841.4758.092041

30、.384.799.5514.3423.8931.8639.8255.782601.174.599.1713.7622.9330.5738.2053.473160.974.178.3412.5120.8627.8034.7548.643430.864.078.1012.1720.2727.0533.8247.333710.763.937.8311.7619.5826.1032.6145.683990.663.657.3411.0018.3424.4430.5442.754270.553.527.0010.5217.5123.3429.1640.824540.453.346.7210.0716.7

31、922.3927.9939.204820.353.106.219.3115.4820.6525.8236.165100.242.214.416.5911.0014.6618.3125.655380.141.482.974.487.459.9312.4117.385660.14a1.002.002.974.966.628.2711.58593(0.14) a(0.66)(1.31)(2.00)(3.31)(4.41)(5.52)(7.72)注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用a此数据， 法兰式阀门不适用表10 2.25C

32、r-1Mo钢WC9压力一温度额定值（第 1类）温度C压力等级1503006009001500200025003500分级表示的工作压力MPa-29 382.005.1710.3415.5125.8634.4743.0960.33931.795.1710.3415.5125.8634.4743.0960.331491.595.0310.0315.0725.1033.4741.8558.612041.384.869.7214.5824.3432.4440.5457.952601.174.599.1713.7622.9330.5638.2053.473160.974.178.3412.5120.86

33、27.8034.7548.643430.864.078.1012.1720.2727.0533.8247.333710.763.937.8311.7619.5826.1032.6145.683990.663.657.3411.0018.3424.4430.5442.754270.553.527.0010.5217.5123.3429.1740.824540.453.346.7210.0716.7922.3927.9939.204820.353.106.219.3115.4820.6525.8236.165100.242.595.217.7913.0017.3421.6830.375380.14

34、1.793.595.389.0011.9814.9620.965660.14a1.212.413.626.038.0310.0314.07593(0.14) a(0.76)(1.52)(2.28)(3.79)(5.05)(6.31)(8.83)注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。注2:带括号的数值尽可能不使用a此数据， 法兰式阀门不适用表11 9Cr-1Mo-V钢C12A压力一温度额定值（第1类）温度C压力等级1503006009001500200025003500分级表小的工作压力MPa-29 382.005.1710.3415.5125.863

35、4.4743.0960.33931.795.1710.3415.5125.8634.4743.0960.331491.595.0310.0315.0725.1033.4741.8558.612041.384.869.7214.5824.3432.4440.5457.952601.174.599.1713.7622.9330.5638.2053.473160.974.178.3412.5120.8627.8034.7548.643430.864.078.1012.1720.2727.0533.8247.333710.763.937.8311.7619.5826.1032.6145.68表11(续

36、)温度压力等级C1503006009001500200025003500分级表小的，作压力MPa3990.663.657.3411.0018.3424.4430.5442.754270.553.527.0010.5217.5123.3429.1740.824540.453.346.7210.0716.7922.3927.9939.204820.353.106.219.3115.4820.6525.8236.165100.242.665.348.0013.3117.7522.2031.105380.142.525.007.5212.5516.7220.8929.235660.14a2.484.9

37、67.4512.4116.5520.6828.965930.14a2.074.176.2410.4113.8817.3424.276210.14a1.553.074.627.6910.2412.7917.936490.14a1.002.002.974.966.628.2711.58注1:温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力。 a此数值仅适用于焊接端阀门表12碳素钢 WCB压力一温度额定值（第2类）温度C压力等级205067110150260420600分级表示的工作压力MPa-29 3826.343.961.59326.343.961.514926.343

38、.961.520426.343.961.526026.343.961.5315254258.534324.64157.337124.440.656.939922.136.951.742718.130.142.2454(11.7)(19.6)(27.4)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用表13 1.25Cr-0.5Mo钢WC6压力一温度额定值（第 2类）温度C压力等级205067110150260420600分级表小的工作压力MPa-29 3826.343.961.59326.343.961.514926.343.96

39、1.520426.343.961.526026.343.961.531526.343.961.534326.343.961.537125.843.060.139925.642.759.842725.342.259.145423.839.755.648220.634.448.351014.023.332.75389.515.822.15656.310.514.8593(4.2)(7.0)(9.8)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用表14 2.25Cr-1Mo钢WC9压力一温度额定值（第 2类）温度C压力等级205067

40、110150260420600分级表示的工作压力MPa-29 3826.343.961.59326.343.961.514926.043.460.820425.442.459.426025.342.259.131525.342.259.134325.241.958.737125.041.758.339924.340.456.6表14(续)温度C压力等级205067110150260420600分级表小的，作压力MPa42723.639.455.245422.637.652.748221.035.149.251016.527.638.753811.519.126.75657.712.817.9593(4.8)(8.0)(11.2)注1：温度或压力数值若处于表中所示值之间时，能够按照内插法确认最高使用温度或压力 注2:带括号的数值尽可能不使用表15 9Cr-1Mo-V钢C1