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BS 341-1:2022

BS 341-1:2022

$167.15

Gas cylinders. Cylinder valves – Threads for connection of valves to gas cylinders. Specification

Published By Publication Date Number of Pages
BSI 2022 42
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PDF Catalog

PDF Pages PDF Title
5 Foreword
7 Introduction
1 Scope
2 Normative references
8 3 Terms and definitions
9 Figure 1 — Hand wheel operated valve
Figure 2 — Key operated valve
10 4 General requirements
4.1 Spindle ends for key operated valves
4.2 Use of pressure relief devices
5 Valve inlet and cylinder neck connections
5.1 Tapered
5.2 Oversized tapered
5.3 Parallel
11 Figure 3 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 16T Type
12 Table 1 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 16T Type
13 Figure 4 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 17T Type
14 Table 2 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 17T Type
15 Figure 5 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 18T Type
16 Table 3 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 18T Type
17 Figure 6 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 19T Type
18 Table 4 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 19T Type
19 Figure 7 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 26T Type
20 Table 5 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 26T Type
21 Figure 8 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 32T Type
22 Table 6 — Dimensions and manufacturing tolerances of valve body tapered stem/cylinder neck threads – 32T Type
6 Inspection gauges
7 Marking
23 Annex A (informative)  Comparison between valve tapered inlet connections in this British Standard and the nominal sizes in BS 341‑1:1962
Table A.1 — Comparison between valve tapered inlet connections in this British Standard and the nominal sizes in BS 341‑1:1962
Annex B (informative)  Guidance on the calculation of thread data given in Figure 3 to Figure 8
25 Annex C (normative)  Gauging for taper threads
26 Figure C.1 — Thread form for 16T plug and ring gauges
27 Figure C.2 — Thread form for 17T plug and ring gauges
28 Figure C.3 — Thread form for 18T, 19T and 26T plug and ring gauges
29 Figure C.4 — Thread form for 32T plug and ring gauges
Table C.1 — Thread taper ratios and angles
30 Figure C.5 — Inspection plug gauges for 16T, 18T, 19T, 26T and 32T
Table C.2 — Inspection plug gauges for 16T, 18T, 19T, 26T and 32T
31 Figure C.6 — Inspection plug gauges for 17T
Table C.3 — Inspection plug gauges for 17T
32 Figure C.7 — Inspection ring gauges for 16T, 18T, 19T, 26T and 32T
Table C.4 — Inspection ring gauges for 16T, 18T, 19T, 26T and 32T
33 Figure C.8 — Inspection ring gauges for 17T
Table C.5 — Inspection ring gauges for 17T
34 Figure C.9 — Check gauges for inspection ring gauges for 16T, 18T, 19T, 26T and 32T
Table C.6 — Check gauges for inspection ring gauges for 16T, 18T, 19T, 26T and 32T
35 Figure C.10 — Check gauges for inspection ring gauges for 17T
Table C.7 — Check gauges for inspection ring gauges for 17T
37 Figure C.11 — Use of inspection plug gauges
38 Figure C.12 — Use of inspection ring gauges
40 Figure C.13 — Use of check gauges
41 Bibliography

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BS 341-1:2022
$167.15