Hydraulic services technical specification

1 General Information 1 1.1 Drawing list 1 1.2 Acoustic and Vibration Isolation – All Building Services 2 1.2.1 Atmospheric noise limits for plant (normal operations): 2 1.2.2 Internal noise limits 3 1.2.3 Proposed vibration isolationstructureborne noise protection. 3 1.2.4 General Information 4 2 Works by Others 1 2.1 Works by Builder 1 2.2 Works by Mechanical Services SubContractor 2 2.3 Works by Electrical Services SubContractor 3 2.4 Works by Fire Protection Services SubContractor 4 3 Works for Others 5 3.1 Works for Builder 5 3.2 Works for Mechanical Services SubContractor 6 3.3 Works for Electrical Services SubContractor 6 3.4 Works for Fire Protection Services SubContractor 6 4 Description of Works 8 4.1 General 8 4.2 Description of Works 8 4.2.1 Overall responsibilities: 8 4.2.2 Particular responsibilities: 9 5 Technical Requirements 14 5.1 General 14 5.1.1 Site Conditions 14 5.1.2 Existing Services 14 5.1.3 Testing 15 5.2 Workmanship 16 5.2.1 Nuisance 16 5.2.2 Making Good 16 5.2.3 Dimensions 16 5.2.4 Protection Of Polished Surfaces 16 5.2.5 Cleaning Of Surfaces 17 5.2.6 Exposed Pipework 17 5.2.7 Fixing Supporting Of Pipes 17 5.2.8 Capping Off 18 5.2.9 Chasing Of Pipes 18 5.2.10 Core Holes Sleeves 18 5.2.11 Fixtures Fixture Points 19 5.2.12 Laying Of Pipes 19 5.2.13 Restoration Of Surfaces 19 5.2.14 Public Utilities Existing Services 19 5.2.15 Pipe Identification 20 5.2.16 Valve identification 20 5.2.17 Water Hammer 20 5.3 Materials 22 5.3.1 Supply of Materials 22 5.3.2 Availability Of Materials 22 5.3.3 Selection of Materials 22 5.3.4 Rejection Of Unsatisfactory Materials 22 5.3.5 Copper Brass Tubes Fittings 22 5.3.6 Galvanised Mild Steel Pipe Fittings 23 5.3.7 PVC Pipes Fittings 23 5.3.8 Nylon Pipes Fittings 24 5.3.9 Vitrified clay pipes fittings (VCP) 24 5.3.10 Cross Linked Polyethylene Pipes Fittings (XLPE) 24 5.3.11 High Density Polyethylene Pipes Fittings (HDPE) 24 5.3.12 Stainless Steel Pipe Fittings for Sanitary Plumbing. 24 5.3.13 Cast Iron Pipes Fittings For Sanitary Plumbing 24 5.3.14 Precast Reinforced Concrete 25 5.3.15 Fibre Reinforced Cement 25 5.3.16 Fire Seals 25 5.3.17 Jointing Materials 25 5.3.18 Valves 26 5.3.19 Check Valves 27 5.3.20 Strainers 27 5.3.21 Drainage Reflux Valves 27 5.3.22 Gas Valves 28 5.3.23 Water Hammer Arrestors 28 5.3.24 Galvanising 28 5.3.25 Cast Iron Surface Boxes 28 5.3.26 Fixings 28 5.3.27 Unions 29 5.3.28 Flanges 29 5.3.29 Flexible Connections to Pumps 29 5.3.30 Flexible Connections to Taps Gas Appliances 29 5.3.31 Gauges 29 5.3.32 Water Service Insulation Materials 30 5.3.33 Concrete 30 5.3.34 Pits Sumps 30 5.3.35 Covers, Grates Frames 31 5.3.36 Pump Control Panels 31 5.4 Excavation 33 5.4.1 Trench Excavation 33 5.4.2 Exceeding Excavation 33 5.4.3 Excavation In Existing Pavement Roadways 33 5.4.4 Timbering Of Excavation 33 5.4.5 Precautions Safeguards 34 5.4.6 Use Of Explosives 34 5.4.7 Pipe Support in Unstable Ground 34 5.4.8 Bedding Materials 34 5.4.9 Side Support Overlay 34 5.4.10 Backfilling 34 5.4.11 Tunnelling 35 5.4.12 Restoration of Surfaces 35 5.4.13 Excess Spoil 35 5.5 Sewer Drainage 36 5.5.1 Pipework 36 5.5.2 Sewer Connection 36 5.5.3 Packaged Sewage Treatment Plant (STP) Basement 36 5.5.4 Overflow Gullies 37 5.5.5 Reflux Valves 37 5.5.6 Sewer Drainage Pump Pit – Basement 38 5.5.7 Sewer Drainage Pumps – Basement 38 5.5.8 Sewer Drainage Pump Control Panel – Basement 38 5.5.9 Drainage Vents 39 5.5.10 Clearouts 39 5.5.11 Garbage Floor Waste 39 5.5.12 Pits Sumps 40 5.5.13 Covers, Grates Frames 40 5.5.14 Testing 40 5.6 Sanitary Plumbing 41 5.6.1 Generally 41 5.6.2 Pipework 41 5.6.3 Branches 41 5.6.4 Expansion Joints 41 5.6.5 Inspection Openings Gates 42 5.6.6 Traps 42 5.6.7 Offsets 42 5.6.8 Vent Penetrations 43 5.6.9 Vent Terminal 43 5.6.10 Acceptance Responsibility of Sanitary Fixtures 43 5.6.11 Testing 43 5.7 Grease Waste Plumbing Drainage 44 5.7.1 Generally 44 5.7.2 Pipework 44 5.7.3 Traps 45 5.7.4 Grease Arrestor 45 5.7.5 Grease Arrestor Remote Suction Pipes 45 5.7.6 Grease Arrestor Chamber Vents 46 5.8 Stormwater Services 47 5.8.1 Pipework 47 5.8.2 Stormwater Connections 47 5.8.3 Pits Sumps 47 5.8.4 Covers, Grates Frames 47 5.8.5 Downpipes 48 5.8.6 Rainwater Outlets 48 5.8.7 Inspection Openings 49 5.8.8 Grated Drains 49 5.8.9 Subsoil Drainage 49 5.8.10 Stormwater Drainage Pumps – Basement 49 5.8.11 Stormwater Drainage Pump Control Panel – Basement 50 5.8.12 Testing 51 5.9 Cold Water Fire Hose Reel Service 52 5.9.1 Pipework 52 5.9.2 Fire Hose Reels 53 5.9.3 Pressure Reduction Valves 53 5.9.4 Urinal Flush Control Equipment 54 5.9.5 Backflow Prevention Devices 54 5.9.6 Acceptance Responsibility Of Tapware 54 5.9.7 Cold Water Fire Hose Reel Pipe Sizes 54 5.9.8 Connection To Existing Authority Water Main 55 5.9.9 Authority Water Meter 55 5.9.10 Fire Hose Reel Test Point 55 5.9.11 Valves 55 5.9.12 Packaged Water Treatment Plant – Basement 55 5.9.13 Water Storage Tank Basement 56 5.9.14 Cold Water Booster Pumps Basement 56 5.9.15 Cold Water Pressure Unit Roof 57 5.9.16 Water Storage Tank Roof 58 5.9.17 Testing 59 5.10 Hot Water Service 60 5.10.1 Generally 60 5.10.2 Hot Water Pipe Sizes 60 5.10.3 Hot Water Pipe Expansion Joints 60 5.10.4 Heat Tracing 61 5.10.5 Hot Water Temperature Control 61 5.10.6 Thermostatic Mixing Valves 61 5.10.7 Hot Water Units 61 5.10.8 Hot Water Circulation Pumps 62 5.10.9 Hot Water Circulating Pump Control Panel 62 5.10.10 Insulation 63 5.10.11 Automatic Air Release Valve 63 5.11 Gas Service 67 5.11.1 Section 1: Capacity calculation specification. 67 5.11.2 Section 2: Technical Requirement Specification 68 C. Requirements of Gas Leakage Control System 72 5.11.3 Section 3: Requirements of Installation Technique 74 5.11.4 Section 4: Technical Requirements – Inspection, testing and Commissioning 81 5.12 Sanitary Fixtures Tapware 82 5.12.1 Generally 82 5.12.2 Sanitary Fixtures 82 5.12.3 Tapware 82