Installation Manual - Future Pipe Industries

9. Installation of underground systems 33
9.1. The trench construction 34
9.2. Pipe assembly 36
9.3. Backfilling 38
9.3.1. Other methods of backfilling 39
9.3.2. Pipe systems to be cast in concrete 39
9.4. Subsidence 40
9.5. Relief plates 41
9.6. Installation of underwater mains 42
9.7. Hydrant connections 44
10. Installation of above ground pipe systems 45
10.1. Supports 45
10.1.1. Protection of the pipe 45
10.1.2. Extra supports 45
10.2. Fixed supports 44
10.3. Pipe clips 46
10.4. Valves 48
10.5. Bellows 50
10.6. Connection to other materials 52
10.7. Algae growth 53
10.8. U.V. resistance 54
10.9. Electrically conductive pipe 55
10.10. Wall penetration and connection to or through walls 56
11. Field test procedure 59
11.1. Filling, saturation and testing 59
11.2. Causes of pressure drop 60
12. Safety precautions 60
Wavistrong Installation Manual
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