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BS 669-1:2022

BS 669-1:2022

$142.49

Flexible hoses, end fittings and sockets for gas burning appliances – Strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances burning 1st, 2nd and 3rd family gases. Specification

Published By Publication Date Number of Pages
BSI 2022 32
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PDF Catalog

PDF Pages PDF Title
5 Foreword
7 Section 1: General
1 Scope
2 Normative references
8 3 Terms and definitions
10 Section 2: Strip-wound flexible connections
4 General
4.1 Size
4.2 Length
4.3 Flow rate test
Table 1 — Flow rate through flexible connection assemblies
4.4 Classification
5 Design and dimensions
5.1 Strip-wound flexible hose
11 Table 2 — Dimensions of flexible hoses
Figure 1 — General view and section of a strip-wound flexible hose
5.2 Cover performance
12 5.3 Soundness
5.4 Assembly markings
13 Figure 2 — Acid test equipment
6 Materials for strip-wound flexible hose
6.1 Steel strip
6.2 Sealing thread/rubber packing
14 6.3 Sealant
6.4 Cover materials
Table 3 — Properties and methods of test for synthetic rubber covers
15 7 Performance
7.1 Strength and heat resistance
16 Table 4 — Test sequence schedule
17 Figure 3 — Flexibility test apparatus
18 Table 5 — Minimum performance test values
20 Figure 4 — Flexing test
21 7.2 Reaction to fire
Figure 5 — Testing rig for single burning item test
22 Figure 6 — Testing rig for test of direct impingement of flame
23 Section 3: Additional requirements for end fittings and sockets
8 Design, construction and materials
8.1 Basic designs and dimensions
8.2 Construction
24 8.3 Materials
9 Selection of end fittings
10 Performance of end fitting assemblies
10.1 Soundness
25 10.2 Pull test
Table 6 — Force and impact energy for pull test and impact test of end fitting assemblies
26 Figure 7 — Pull test
10.3 Impact test
27 Figure 8 — Impact test apparatus
28 Figure 9 — Impact test on a typical end fitting
10.4 Drop test
29 Figure 10 — Drop test
10.5 Durability
30 Section 4: Marking
11 Information to be marked on flexible connection assembly
12 Packaging
31 Bibliography

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BS 669-1:2022
$142.49