This standard specifies the connection type and size of the outlet of various gas cylinder valves, the connection type, thread specifications and dimensions of the charging joints. This standard applies to the cylinder valves configured on various permanent gas, liquefied gas and dissolved gas cylinders with a volume not exceeding 1000L. This standard does not apply to the cylinder valves used on special gas cylinders for other purposes. GB 15383-1994 Gas cylinder valve outlet connection type and size GB15383-1994 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Outlet connections and sizes for cylinder valves
1 Subject content and scope of application
GB15383-94
This standard specifies the connection types and sizes of the outlets of various gas cylinder valves, the connection types, thread specifications and sizes of the charging joints. This standard applies to the cylinder valves configured on various permanent gas, liquefied gas and dissolved gas cylinders with a volume not exceeding 1000L. This standard does not apply to cylinder valves used on special gas cylinders for other purposes. 2 Reference standards
GB197 Ordinary thread tolerances and fits (diameter 1~355mm)GB7307 Pipe threads for non-threaded seals
GB7512 Liquefied petroleum gas cylinder valves
GB10877 Oxygen cylinder valves
GB10879 Dissolved acetylene cylinder valves
Argon cylinder valves
GB13438
GB13439
Liquid fluorine cylinder valves
3 Connection types and sizes of outlets of various gas cylinder valves 3.1 The outlets of non-flammable and non-toxic gas cylinder valves shall comply with the provisions of Table 1. Approved by the State Bureau of Technical Supervision on December 26, 1994, and implemented on August 1, 1995
Gas name
Difluorobromomethane
(F-12B,)
CF2CIBr
Fluorofluoromethane
(F-22)
Hexafluoroethane
(F-116)
Trifluorofluoromethane
(F-13)
Sulphur fluoride
Connecting screw
Thread specifications
GB15383-94
W21.8-14$13
3.2=The gas outlet of the carbon dioxide gas cylinder valve shall comply with the provisions of Table 2. 14
Connecting screw
Gas name
Carbon dioxide
Thread specification
GB15383-94
3.3 The gas outlet of the cylinder valve of non-flammable, non-toxic and thermally stable gas (except carbon dioxide) shall comply with the provisions of Table 3 and Table 4. Table 3
Connecting screw
No. Gas name
Gas name
Thread specification
Connecting screw
Thread specification
GB15383--94
3.4 ​​The gas outlet of the cylinder valve of non-flammable, toxic, corrosive or corrosive gas containing water shall comply with the provisions of Table 5. Table 5
Connecting screw
Gas name
Boron trifluoride
Sulfur dioxide
Carbonyl difluoride (phosgene)
Hydrogen bromide
Hydrogen fluoride
Hydrogen chloride
Cyanogen fluoride
Thread specification
Note: 1\ is the British thread with a nominal diameter of 1\. 142
GB15383-94
3.5 The outlet of the air bottle valve shall comply with the provisions of Table 6 and Table 7. Table 6
Connecting screw
Thread specification
No. Gas name
Note: ①G1/2.G3/4 is not recommended.
②“Symbols are recommended.
Connecting screw
No. Gas name
Thread specification
Same as No. 5
Note: Refer to GB10877 outlet connection type and size. Right
GB 15383--94
3.6 The outlet of the flammable and non-toxic gas cylinder valve shall comply with the provisions of Table 8 and Table 9. Table 8
Connecting screw
Gas name
Ethane CH.
Isobutane
(CH,),CHCH3
Isobutylene
13(CH,),C-CH2
Methane CH
Propane C.Hg
Propene C,H .
Natural gas
Groove specification
$281670°left
Except liquefied petroleum gas, outer diameter scale
Gas name
T-alkaneCH
EthaneC,H6
EthyleneC,H4
Isobutane
(CH,),CHCH
Isobutylene
(CH;)2C-CH2
MethaneCH| |tt||Propane C.Hs
Propene CH.
1-Butene
CH,CH,CH-CH2
2-Butene
CH,CH=CHCH,
Ethyl chloride (ethyl chloride)
CzH,Cl
Liquefied petroleum gas (mixed)
Connection screw
Thread specification
GB15383-94
α Rotation
16「70°left
Except for liquefied oil and gas, the outer diameter scale
The gas outlet of the flammable, toxic, corrosive (alkaline) or non-corrosive gas bottle valve shall be in accordance with the specifications in Table 10. 3.7
Gas name
Trimethylamine
(CH3),NH
Trimethylamine
(CH3),N
Connecting screw
Thread specification
GB 15383--94
3.8 The outlet of the flammable, toxic, corrosive (acidic) or non-corrosive gas cylinder valve shall comply with the provisions of Table 11. Table 11bzxz.net
Connecting screw
Gas name
Arsine
Carbon monoxide
Carbon oxysulfide
Cyanide NCCN
Cyclopropane
Hydrogen selenide
Sulfide Hydrogen
Methyl chloride
Thread specification
: $15
GB15383--94
3.9 The outlet of the self-igniting gas cylinder valve shall comply with the provisions of Table 12. Table 12
Gas name
Phosphine
Connection screw
Thread specification
3.10 The outlet of the oxygen cylinder valve shall comply with the provisions of Table 6 and Table 7. 3. 11
The outlet of the nitrous oxide gas cylinder valve shall comply with the provisions of Table 13. Table 13
Connection screw
Gas name
Nitrous oxide
Thread specification
L. L
GB1538394
3.12 The outlet of the oxidant, toxic and corrosive gas cylinder valve shall comply with the provisions of Table 14. Table 14
Connecting screw
Gas name
Chlorine Cl2
Chlorine trifluoride CIF,
Nitrogen monoxide
Nitrogen dioxide
Thread specification
$15 11
3.13 The gas outlet of the valve of the decomposable or polymerizable flammable gas cylinder shall comply with the provisions of Table 15. Table 15
Connecting screw
Gas name
Trifluorofluoroethylene
Ethylene oxide (ethylene oxide)
Hydrogen cyanide HCN
1,3-butadiene
CH2=(CH)2
Vinyl bromide (vinyl bromide)
Vinyl chloride C2H,C1
Vinyl fluoride C,H:F
Vinyl methyl ether
CH,OCh-CH,
Thread specification
$1611419
GB 15383—94
3.14 The gas outlet of acetylene gas cylinder valve shall comply with the provisions of Table 16. Table 16
Gas Name
Acetylene C, H
Connection Type
3.15 The outlet of the mixed gas bottle valve of oxidant, non-toxic gas and non-corrosive gas shall comply with the provisions of Table 17. Table 17
A=aB=6
Mixed Gas
4 Description
Gas Name
50%N,0-50%02
Threaded Connection Direction
4.1 Several Aspects to Be Noted in Use
a. The outlet size of the bottle valve of the gas not listed can be selected according to the gas characteristics. Figure
GB15383-94
For the recommended types and sizes of the sealing gaskets, charging joints and nuts used when filling gas, please refer to Appendix A (reference). When filling hydrogen, it is absolutely forbidden to use all other methods except threaded connection. 4.2 Manufacturing accuracy of connecting threads
a. The manufacturing accuracy of connecting threads specified in this standard shall comply with the accuracy of Class B or higher specified in GB7307. b. The manufacturing accuracy of connecting threads that appear in this standard but are not in accordance with international regulations shall refer to the accuracy of Class 6H/6g specified in GB197 or Class B or higher specified in GB7307. For example, W21.8-14 shall refer to the accuracy of G5/8\ pipe threads. 150
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