National standards for valves -- GB standards
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No. Valve standard code Valve standard name1 GB12220-1989 “General valves – Marking”
2 GB12221-1989 “Structural lengths of flanged metal valves”
3 GB12222-1989 “Connections for multi-turn valve actuators”
4 GB12223-1989 “Connections for quarter-turn valve actuators”
5 GB12224-1989 “General requirements for steel valves”
6 GB12225-1989 “General valves – Technical requirements for copper alloy castings”
7 GB12226-1989 “General valves – Technical requirements for gray iron castings”
8 GB12227-1989 “General valves – Technical requirements for ductile iron castings”
9 GB12228-1989 “General valves – Technical requirements for carbon steel forgings”
10 GB12229-1989 “General valves – Technical requirements for carbon steel castings”
11 GB12231-1989 “Requirements for the appearance quality of valve castings”
12 GB12232-1989 “General valves – Flanged iron gate valves”
13 GB1047-1970 “Nominal diameters of pipes and pipe fittings”
14 GB12236-1989 “General valves – Steel swing-check valves”
15 GB1348-1988 “Ductile iron castings”
16 GB1048-1990 “Nominal pressure of pipe components”
17 GB11365-1989 “Accuracy of bevel gears and hypoid gears”
18 GB4213-1984 “General technical requirements for pneumatic control valves”
19 GB12238-1989 “General valves – Flanged wafer-type butterfly valves”
20 GB8335-1987 “Special threads for gas cylinders”
21 GB10877-1989 “Oxygen cylinder valves”
22 GB12239-1989 “General valves – Diaphragm valves”
23 GB12240-1989 “General valves – Iron plug valves”
24 GB12241-1989 “General requirements for safety valves”
25 GB12242-1989 “Test methods for the performance of safety valves”
26 GB12243-1989 “Direct spring-loaded safety valves”
27 GB11352-1989 “Technical requirements for steel castings”
28 GB596–83 “Marine external-threaded bronze globe check valves”
29 GB597-1983 “Marine external-threaded bronze check valves”
30 GB5796-1986 “Trapezoidal threads”
31 GB7306-1987 “Pipe threads sealed by threading”
32 GB7307-1987 “Pipe threads not sealed by threading”
33 GB6414-1986 “Dimensional tolerances for castings”
34 GB12245-1989 “Test methods for the performance of pressure reducing valves”
35 GB12246-1989 “Pilot-operated pressure reducing valves”
36 GB12247-1989 “Steam traps – Classification”
37 GB12248-1989 “Steam traps – Terminology”
38 GB12249-1989 “Steam traps – Marking”
39 GB12250-1989 “Steam traps – Structural lengths”
40 GB12251-1989 “Test methods for steam traps”
41 GB10868-1989 “Technical requirements for temperature and pressure reducing valves used in power plants”
42 GB10869-1989 “Technical requirements for control valves used in power plants”
43 GB/T1972-1992 “Belleville springs”
44 GB12234-1989 “General valves – Flanged and butt-welded steel gate valves”
45 GB12237-1989 “General valves – Flanged and butt-welded steel ball valves”
46 GB12233-1989 “General valves – Iron globe valves and lift check valves”
47 GB9443-1988 “Penetrant testing of steel castings and rating methods for defect indications”
48 GB3323-1987 “Radiographic inspection and quality grading of fusion-welded steel butt joints”
49 GB12235-1989 “General valves – Flanged steel globe valves and lift check valves”
50 GB1851-1984 “Marine external-threaded bronze air globe valves with PN160 rating”
51 GB8464-1987 “General requirements for internal-threaded gate valves, globe valves, ball valves, and check valves”
52 GB8465.1–7-87 “Dimensions of internal-threaded gate valves, globe valves, ball valves, and check valves”
53 GB5677-1985 “Radiographic inspection of steel castings and film grading methods”
54 GB12230-1989 “General valves – Technical requirements for austenitic steel castings”
55 GB1804-1979 “Tolerances and fits; limit deviations for dimensions without specified tolerances”
56 GB12244-1989 “Radiographic inspection of steel castings and film grading methods”
57 GB10879-1989 “Valves for dissolved acetylene cylinders”
58 GB197-1981 “General purpose threads, tolerances and fits”
59 GB1239.2-1989 “Technical requirements for cold-coiled cylindrical helical compression springs”
60 GB1239.4-1989 “Technical requirements for hot-coiled cylindrical helical springs”
61 GB10095-1986 “Accuracy of involute cylindrical gears”
62 GB9444-1988 “Magnetic particle testing of steel castings and quality grading methods”
63 GB/T13927-1992 “General valves – Pressure testing”
64 GB/T592-1993 “Marine flanged cast iron check valves”
65 GB/T1852-1993 “Marine flanged cast steel steam pressure reducing valves”
66 GB/T12252-1989 “General valves – Supply requirements”