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Water Management Easi - Storm Attenuation Systems P37 The production of water impermeable surfaces in construction is inevitable. This includes roof areas on buildings, car parks, loading bays and road pavements. The provisions of these surfaces interrupts the natural drainage process, creating increased stormwater runoff in respect of both volume and flow rate. In many cases this increase in stormwater flow and volume is a problem as the local sewer or watercourse does not have the sufficient capacity to cope. This problem could be alleviated by an increase in the size of the stormwater sewer or watercourse, thus providing the capacity within the drainage system to cope with the increased surface water. This however may be expensive, cause major infrastructure disruption, and may often be completely unfeasible. Legislation under Planning Policy Statement 25 and Building Regulations approved Document H3 for flood risk assessment (SUDS), has created the need for planners and developers to design and install effective storm water management systems. The types of system that can be employed to overcome these issues are well documented and varied. Quite often, they can be very technically demanding in their operation, maintenance and construction. The selection of a system will depend on site constraints, position, expected loading, geographical limitations and inevitably cost. The Easi-Storm system offers a complete solution to the stormwater attenuation problem and utilises a tried, tested and approved method of stormwater storage. F P McCann can provide the complete package of design, product specification, supply of products, and advice with installation. Features: · Available in a range of sizes · Can use and combine a number of techniques and products such as pipes, culverts, tanks, manifold systems and soakaways · A complete solution with all connections · Established and familiar products · Can be laid in short lengths · The system can be adapted to load bearing and non-load bearing applications · 120 year design life · Adoptable by water companies · Manufactured in accordance with a BSI accredited quality management system conforming to BS EN ISO 9001 · Available straight from stock Benefits: · System can be designed specifically to suit the application · Speedy construction using a standard joint · No need for fabrication on site or external specialist contractors · Straightforward installation using known techniques – no need to retrain · Can be installed under roads and car parks · Can cope with construction plant loading · Flotation is not a concern – no need for geotechnical anchors when located below the water table · Long term solution Design: The design of the system can be tailored to suit most structural and hydraulic criteria. Structural: The inherent structural strength of concrete is well documented and can be designed to meet the severest of loading criteria. Easi- storm systems can be tailored to suit low load situations when the tank is to be situated below verges or gardens. Relevant Legislation/ Information: · Planning Policy Statement 25 (PPS25) December 2006. Department of Communities and Local Government (DCLG) · Building Regulations. Department of Communities and Local Government (DCLG) · Future Water February 2008. Department for Environment, Food and Rural Affairs (DEFRA) · The Pitt Review, Learning Lessons from the 2007 floods. Sir Michael Pitt. · The Code for Sustainable Homes February 2008 Department for Communities and Local Government (DCLG) · The SUDS Manual 2007 CIRIA C697 · Sustainable drainage systems - Hydraulic, structural and water quality advice 2004 CIRIA C609. · Flood and Water Management Act 2010 90 degree end cap with maintance access to specific cover level Inlet pipes in various diameters and positions for multipile connections Pipes can be supplied with strengths to BS 5911 depending on the loading situation, thus keeping bedding and installed costs down Pipes in various diameters to suit storage required and site constraints Sectional construction negates the need for large open excavations An example of an effective Easi-Storm system Flow control chamber with cast in sump and vortex flow control device 37 www.fpmccann.co.uk precast@fpmccann.co.uk
Water Management Easi-Hydro Separator P38 Introduction FP McCann have designed and developed a new range Hydrodynamic Separators for the treatment of urban catchment storm-water runoff¬. The Easi-Hydro Separator provides a cost effective solution for designers, engineers and contractors involved in the provision of sustainable urban drainage systems. The Easi-Hydro Separator has no moving parts, requires no power and is constructed in precast reinforced concrete. All internal components are manufactured in GRP and stainless steel ensuring long asset life. The Easi-Hydro Separator has been independently tested by WRc and total solids removal rates range from 85 to 92% have been measured. The Easi-Hydro Separator is also effective in the removal of hydrocarbons, litter and other storm-water debris. Operation The Easi-Hydro Separator is specifically designed to remove suspended solids, hydrocarbons and floatable debris from the storm-water runoff. The Easi-Hydro Separator chamber is constructed in pre-cast reinforced concrete and supplied complete with a unique, factory installed, GRP flow management module. This unique design produces low energy vortex flow patterns allowing the solids to settle to the bottom of the treatment chamber for subsequent removal. Re-suspension of the solids is minimised by provision of a GRP baffle plate positioned above the solids storage sump. Floatable debris is retained within the Easi- Hydro Separator and prevented from discharging by a dip outlet pipe and launder channel arrangement. Flows to treatment are controlled by a specially designed launder channel and inlet pipe arrangement. Flows in excess of the maximum treatment flow overflow a weir, bypass the treatment zone and directly discharge through the outlet pipe. This helps to minimize the effects of scour within the treatment compartment and optimises the performance of the unique Easi-Hydro Separator. Easi-Hydro Separator 38 www.fpmccann.co.uk precast@fpmccann.co.uk
Page 1 and 2: 2011 Version 1 Product Selector www
Page 3 and 4: Contents P2 Drainage Spigot & Socke
Page 5 and 6: Drainage Spigot & Socket Pipes P4 B
Page 7 and 8: Drainage Easi-Flex Square Tumbling
Page 9 and 10: Drainage Easi-Lift Pipe Lifter P8 T
Page 11 and 12: Drainage Easi-Slide In Wall Pipes P
Page 13 and 14: Drainage Easi-Slide Handling Instru
Page 15 and 16: Drainage Easi-Flex Joint Gaps P14 P
Page 17 and 18: Drainage Manhole Soakaways P16 16 M
Page 19 and 20: Drainage Wide Wall Manhole Chambers
Page 21 and 22: Drainage Recommended Site work Prac
Page 23 and 24: Drainage Adjusting Units & Corbel S
Page 25 and 26: Drainage House Inspection Chambers
Page 27 and 28: DN1200 Easi-Base (Polypropylene lin
Page 29 and 30: DN 1500 & DN 1800 Precast Concrete
Page 31 and 32: Drainage Easi-Pit (DN 1050 Catch-pi
Page 33 and 34: Drainage Easi-Flow Chamber P32 The
Page 35 and 36: Drainage Handhold & Entry Pole Syst
Page 37: Drainage Easi - Box Culverts P36 TY
Page 41 and 42: Water Management Easi-Rain Harvesti
Page 43 and 44: Tunnels & Shafts Smoothbore Tunnel
Page 45 and 46: Tunnels & Shafts Shaft Cover and La
Page 47 and 48: Tunnels & Shafts Caisson Units P46
Page 49 and 50: Tunnels & Shafts Jacking Pipes P48
Page 51 and 52: Infrastructure & Power Power Infras
Page 53 and 54: Infrastructure & Power Power Infras
Page 55 and 56: Railway Rail Products P54 As a lead
Page 57 and 58: Easi-Kerb Kerbs & Channels Range (N
Page 59 and 60: Notes P58 58 www.fpmccann.co.uk pre

Product Selector - FP McCann Ltd

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