Untitled - Future Pipe Industries

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Notes: When assembling two flanges, only one flange must have an ‘O’ ring groove. The other mating flange must be flat faced. • ‘O’ rings like all rubber products should be stored in a cool shaded area away from sunlight. • Clean the ‘O’ ring groove with a hard brush to remove all dirt and sand, then wipe clean with a damp cloth. • Clean the neoprene ‘O’ ring with a damp cloth thoroughly check the ring for cracks by stretching the gasket all around to about 30% over its normal length. Never use used cracked or otherwise damaged ‘O’ ring gaskets. • Insert the ‘O’ ring in the flange groove and secure in position using several small strips of double sided adhesive tape placed between the ‘O’ ring and the groove surface. • Align the two flanges and insert the bolts, nuts, and washers after cleaning and lubricating in accordance with section ‘a’ of this appendix. • Tighten the nuts and bolts using a torque wrench following the sequence shown in section ‘c’ of this appendix, to a torque of 25 lb-ft (35 N.m) • Re-torque all nuts and bolts in the correct sequence to 48 lb-ft (65 N.m). This torque is normally sufficient to achieve the required sealing during the hydrostatic test and normal operation. Maximum torques must not exceed 74 lb-ft (100 N.m.). 5. Assembly and disassembly of flanged equipment When assembling flanged parts (equipment, valves, orifice flanges, etc.) that may need to be disassembled in the future, a mechanical flange adaptor or a dismantling joint must be placed on one side of the flanged joint, to allows some displacement in the axial direction. 6. Trouble shooting If an assembled flanged joint leaks, loosen and remove all bolts, nuts, washers, and gaskets. Check for alignment of assembly and correct alignment as required. Check the gasket for damage. If damaged, discard and replace with a new gasket. Check flanges for seal rings. Flanges with damaged inner seal rings must be removed and new, undamaged flanges installed. If leak occurs as a result of deficiencies in non-fiberglass components of the piping system, consult the manufacturer of the defective components for recommended corrective procedures. Clean and lubricate old threads and washers before rejoining. Repeat the rejoining procedure outlined above. After corrective action has been taken retest the joints to see if a water-tight seal has been made. 53
APPENDIX V: LIST OF REFERENCES The following standards and publications provide a good source of information on the design, installation and testing of FRP pipe and other pipe materials. • Fiberglass Pipe Institute Fiberglass pipe Handbook – 1989 • ASTM C924 Standard Practice for Testing Concrete Pipe Sewer Lines by Low-pressure Air Test Method • ASTM C969 Standard Practice for Infiltration and Exfiltration Acceptance Testing of Installed Precast Concrete Sewer Lines • ASTM D1586 Standard Method for Penetration Test and Split Barrel Sampling of Soils. • ASTM D2487 Classification of Soils for Engineering Purposes • ASTM D1586 Standard Method for Penetration Test and Split Barrel Sampling of Soils • ASTM D 3839 Standard Practice for Underground Installation of “fiberglass” Pipe. • AWWA C950-02 Standard Specification for Fiberglass Pipe • AWWA Manual M45 Fiberglass Pipe Design - 1996 • BS 8010 Part 1:89 Pipelines on Land - General • BS 8010 Part 2.5:89 Pipelines on Land - Design, Construction & Installation - GRP Pipelines. • BS 8010 Part 3:93 Pipelines - Sub-sea: Design, Construction & Installation. 54
Page 2 and 3:
All information was correct at the
Page 4 and 5:
1.0: Introduction This manual deals
Page 6 and 7: 2.5: Storing pipes on site 2.5.1 Di
Page 9 and 10: Figure 4: Pipes in the same trench
Page 11 and 12: 4.0: Backfilling and installation s
Page 13: 4.5: Classification of native soils
Page 16 and 17: Installation type I ASTM D1586 Blow
Page 18 and 19: Installation type I ASTM D1586 Blow
Page 20: Installation type I ASTM D1586 Blow
Page 23 and 24: 5.1.1: Joint lubricant For lubrican
Page 25: Mechanical lowering is used for lar
Page 28: 5.6: Pipes with locked joints For s
Page 31 and 32: Caution: Always provide a standard
Page 34 and 35: Figure 20 6.2: Pipe zone backfillin
Page 36 and 37: 6.3: Backfilling where temporary sh
Page 38 and 39: 7.0: Hydrostatic testing of pipelin
Page 40 and 41: 7.2: Bracing test-ends and set-up D
Page 42 and 43: 7.6: Final pressure test After all
Page 44 and 45: 7.9.2: Low head water test The Cont
Page 46 and 47: 9.0: Tapping water mains Pressure p
Page 48 and 49: APPENDIX II: Design considerations
Page 51 and 52: APPENDIX III AIR IN PIPELINES, AIR-
Page 53 and 54: APPENDIX IV FLANGE INSTALLATION INS
Page 55: Table 1a If connected to raised fac
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