管道颜色识别GB7231

序号        介质名称        涂色        管道注字        注字颜色

1        工业水        绿        上水        白

2        井水        绿        井水        白

3        生活水        绿        生活水        白

4        过滤水        绿        过滤水        白

5        循环上水        绿        循环上水        白

6        循环下水        绿        循环回水        白

7        软化水        绿        软化水        白

8        清静下水        绿        净化水        白

9        热循环回水(上)        暗红        热水(上)        白

10        热循环回水        暗红        热水(回)        白

11        消防水        绿        消防水        红

12        消防泡沫        红        消防泡沫        白

13        冷冻水(上)        淡绿        冷冻水        红

14        冷冻回水        淡绿        冷冻回水        红

15        冷冻盐水(上)        淡绿        冷冻盐水(上)        红

16        冷冻盐水(回)        淡绿        冷冻盐水(回)        红

17        低压蒸汽        红        低压蒸汽        白

18        中压蒸汽        红        中亚蒸汽        白

19        高压蒸汽        红        高压蒸汽        白

20        过热蒸汽        暗红        过热蒸汽        白

21        蒸汽回水冷凝液        暗红        蒸汽冷凝液(回)        绿

22        废气的蒸汽冷凝液        暗红        蒸汽冷凝液(废)        黑

23        空气(压缩空气)        深蓝        压缩空气        白

24        仪表用空气        深蓝        仪表空气        白

25        氧气        天蓝        氧气        黑

26        氢气        深绿        氢气        红

27        氮(低压气)        黄        低压氮        黑

28        氮(高压气)        黄        高压氮        黑

29        仪表用氮        黄        仪表用氮        黑

30        二氧化氮        黑        二氧化氮        黄

31        真空        白        真空        天蓝

32        氨气        黄        氨        黑

33        液氨        黄        液氨        黑

34        氨水        黄        氨水        绿

35        氯气        草绿        氯气        白

36        液氨        草绿        纯氯        白

37        纯碱        粉红        纯碱        白

38        烧碱        深蓝        烧碱        白

39        盐碱        灰        盐酸        黄

40        硫酸        红        硫酸        白

41                管本色                蓝

42        醋酸        管本色        醋酸        绿

43        煤气等可燃气体        紫        煤气(可燃气体)        白

44        可燃液体        银白        油类(可燃液体)        黑

45        物料管道        红        按管道介质注字