HydroMax Siphonic Drainage. Leaders in Siphonic Drainage

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1 HydroMax Siphonic Drainage Leaders in Siphonic Drainage

2 What is HydroMax Siphonic Roof Drainage? HydroMax is an innovative solution which utilises the power of a natural siphon to create a high-performance roof drainage solution. Why use HydroMax Siphonic Roof Drainage? HydroMax is an Engineered Solution which provides many Technical Benefits HydroMax offers cost savings ranging from 25% to 45%!

3 Top 10 Technical Benefits using HydroMax Siphonic Roof Drainage 1. Smaller Diameter pipe work approx. half the gravity dia. 2. Horizontal pipes are installed without Slope Flat Level. 3. Pipes run full-bore with self-cleaning properties. 4. A significant Reduction in Below Grade Drainage (common range is from 20% to 60%). 5. Rainwater down pipes routed to the Engineer s Preferred Locations - This frees up valuable building space. 6. Routing of rainwater down pipes to the perimeter of buildings Eliminates Below Grade Drainage Under the Building Floor. 7. Easy co-ordination of services due to pipe work running flat. 8. Fewer pipes = Reduced construction time and cost. 9. Ability to route rainwater pipes to pond retention or Rainwater Harvesting. 10. Reduced Ponding on the roof due to efficient water flow

4 What is wrong with Traditional Gravity Drainage Systems? Traditional Gravity drainage systems work but they are inefficient and have a number of factors restricting performance. 4 Restrictive Factors of Gravity Drainage 1. The water flow-rate is dictated by the gradient available (this gradient also restricts the distance a pipe can travel). 2. Multiple rainwater pipes in locations largely dictated by the gravity hydraulics rather than design team choice. 3. Gravity drains require ⅔ air to transport ⅓ water. 4. Vortex formation within vertical gravity pipes results in the water being transported in an inefficient spiral motion rather than straight through the pipe. 5. The driving force is only the depth of ponding or head of water above the roof drain.

5 Vertical Gravity pipes run full at only 1/3 water ⅓ water in annular flow ⅔ air core Horizontal (Sloping) Gravity pipes run full at only 2/3 water

6 Typical Traditional Gravity Drainage System Multiple Downpipes Extensive Underground Drainage Drainage under Building Floor Sloping Underground Drainage makes for difficult routing to attenuation/harvesting

7 Principles of Gravity Drainage Vortex motion A large amount of Air is required to move a small amount of water. Extremely Inefficient Annular Flow Water adheres to pipe wall Central Air Core 7

8 HydroMax Siphonic Drainage Why is HydroMax different from gravity drainage? No Air! Pipes run 100% full bore

9 Principles of HydroMax Siphonic Drainage The Siphonic Roof Drain eliminates air entering the pipe promoting water filled pipework The full bore of the pipe work carries the rainwater Water, without air, accelerates down the vertical downpipe, creating negative pressure and naturally generating a high performance siphonic flow The full height of the building provides the energy for this highly efficient Rainwater Drainage Solution 9

10 Principles of HydroMax Siphonic Drainage Eliminate Air Pipes run 100% with Water Building Height provides energy for High Self- Cleansing Velocities System Comparison Extremely Efficient 10

11 Traditional Gravity Solution 530 metres Pipework Diameters 160mm to 450mm 60m 100m HydroMax Siphonic Scheme 360 metres HDPE Pipework Diameters 56mm to 200mm 11 SAVING 32% of Pipework and Labour Smaller Diameters & Less below grade

12 HydroMax Installation Gutters HydroMax Install. Flat Roofs HydroMax Install. Sloping Roofs 12 Gim Hae Airport

13 Suitable Projects for Siphonic Drainage Retail Chains Over 1000 WalMarts with HydroMax 13

14 Suitable Projects for Siphonic Drainage Stadium Royal Ascot Racecourse Ricoh Stadium and Arena, Coventry Stadium of Light, Sunderland

15 Suitable Projects for Siphonic Drainage Shopping Mall Dundrum Retail Shopping Malls with multi-level Car Parks 313 Orchard Road, Singapore

16 Suitable Projects for Siphonic Drainage Commercial Office Building Fusionopolis Singapore Accident Fund, Lansing USA E-Tek Flagship Trinidad

17 Suitable Projects for Siphonic Drainage Accommodation/Hotels/Prisons Ibis Hotel, Singapore Student Accommodation, Wembley Johnstone County Detention Center, USA

18 Suitable Projects for Siphonic Drainage Hospital Mercy Hospital, Des Moines, IA Forest Park Medical Center, Dallas

19 Suitable Projects for Siphonic Drainage Apartment Blocks D Leedon Residences, Singapore Athletes Village London 2012 Olympics

20 Suitable Projects for Siphonic Drainage Apartment Blocks The Wharf Residence JEM Jurong Gateway

21 Suitable Projects for Siphonic Drainage Podium Decks Marina Heights, Tempe AZ with Trench Drain

22 Suitable Projects for Siphonic Drainage Green Roofs Siphonic Drains installed at waterproofing membrane level

23 Suitable Projects for Siphonic Drainage Airport Belfast City Airport Newcastle International Incheon Airport New T2 Phoenix Sky Harbor T3

24 Suitable Projects for Siphonic Drainage Railway KAIA High Speed Railway Terminal, Saudi Arabia Osong Railway Station, South Korea

25 Suitable Projects for Siphonic Drainage Warehousing & Distribution Centres 110,000m² for Tesco General Motors KD Parts Incheon 25

26 26 Suitable Projects for Siphonic Drainage Manufacturing Plants

27 27 Suitable Projects for Siphonic Drainage Schools, Sports and Community Centres

28 Suitable Projects for Siphonic Drainage Flagship Projects Scottish Parliament Masdar City MIST 1B, Abu Dhabi - World s 1 st Carbon Neutral City 28 National Science Centre, South Korea

29 HydroMax Siphonic Products This is a special drain for multi floor balcony drainage. The drain has a built in Anti-Backflow device. Flow Rate Max. = 1.5 l/s (Litres per Second) 50mm Balcony Pressurised Roof Drain Flow Rate Min. = 1.5 l/s (Litres per Second) up to Max. = 12 l/s 50mm Terrace Siphonic Roof Drain

30 HydroMax Siphonic Products Our Metric series of drains come in a range of models for compatibility with all roof types Flow Rate Min. = 1.5 l/s (Litres per Second) up to Max. = 25 l/s 75mm Siphonic Roof Drain Our Metric series of Overflow drains come in a range of models for compatibility with all roof types Flow Rate Min. = 1.5 l/s (Litres per Second) up to Max. = 25 l/s 75mm Siphonic Overflow Roof Drain 30

31 HydroMax Siphonic Products 125mm Siphonic Roof Drain Our Metric series of drains come in a range of models for compatibility with all roof types Flow Rate Min. = 10 l/s (Litres per Second) up to Max. = 100 l/s Range of Accessories for Our Metric Series of Drains Drains are available as Podium Deck Drains Using cast iron frame and grates to house the Siphonic Roof Drain Leafguards Gravel Guards Car Park Drains 31 Bespoke Accessories

32 HydroMax Siphonic Drain Benefits High Performance Versatile and Compatible with any Roof Compact for installation in gutters/scuppers Anti Tamper Fastening of one-piece Inducer Proven track record of Low Maintenance 32

33 HydroMax HDPE Siphonic System 60,000m² Roof - Only 4 Rainwater Downpipes draining the Main Roof 33 Can be Pre-Fabricated in Factory Controlled Conditions with Engineered Rail Fastening System

34 HydroMax Siphonic System Level, Small Diameter, Pipes Makes for Easy Coordination with structure and services HydroMax Collector Pipe at High Level HydroMax Pipework Installed Absolutely Flat Level at High level

35 Siphonic Standards & Codes BS EN :2000 (includes Siphonic Drain Test) ASME A :2005 (Siphonic Drain Test) SS 525:2006 (Basic Requirements) ASPE/ANSI 45:2013 Technical Design Standard (Design, Installation & Product Standard) BS 8490:2007 (Design, Installation & Product Test Standard) HydroMax Qualities & Benefits Summary Full Compliance with SS 525:2006 Full Design Compliance with BS 8490:2007 (31 pages) Full Design Compliance with American ASPE ASPE/ANSI 45:2013 Design & Engineering Standard (50 pages) Full Compliance with IPC % Success Rate

36 Siphonic Drainage Analytical Design Program HydroMax provides the following: Web based HydroTechnic program for easy Technical Support Fast Accurate Calculations in full compliance with BS 8490 & ASPE 45 Advanced Edit Functions to accommodate on-site changes Program Generation of Pre-Fabrication Drawings (Eliminates risk of human interface errors) Exports data in electronic format for O & M files HydroTechnic Analytical Design Program OVER 10,000 Siphonic Roof Drain Systems SUCCESSFULLY designed by HydroTechnic 100% SUCCESS RATE ZERO System Design Failures TRIED - TESTED - PROVEN 36

37 HydroTechnic Analytical Design Program Identify Interface with civils drainage Choose your pipe routing Draw schematic isometric drawing to input to the design program (normally in AutoCAD) Calculate Pipe diameters for compliance with BS 8490 (or ASPE/ANSI 45) Unlike normal (gravity) systems piping cannot be altered without referring back to the Designer for approval

38 Key Advantages with HydroMax Drains independently tested to: BS 8490:2007 ASME :2005 Designs to BS 8490 or ASPE 45 Independently tested HydroTechnic design software (confirmed to have unsurpassed accuracy ) Range of High Performance Roof Drains (Outlets) HDPE Pipes to EN 1519 Key Advantages for Building Owners High Performance, Self-Cleansing Roof Drainage System Fewer Rainwater Downpipes routed to convenient positions providing an increased and flexible use of floor space Proven Record of Low Maintenance Elimination of underground drainage, manholes, etc. within the building footprint 38

39 Key Advantages for the Design Team Smaller diameter horizontal pipework installed level An Engineered Solution allowing choice of discharge locations Flexible Pipe routing with easy co-ordination of services Rainwater Management - HydroMax can route pipework to attenuation/rainwater harvesting. Key Advantages for the Main Contractor Improved Construction Build Program Significant Cost Savings A dry building envelope is attained at an early stage of construction allowing fit-out works to proceed earlier Less Trench work for below ground drainage saving excavation, soil treatment, pipe laying, back fill compaction, etc. 39

40 HydroMax Siphonic Drainage Written by Bill Ross and Dr Malcolm Wearing BEng PhD CEng MICE MCIWEM