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Install discharge pipes
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Install discharge pipes


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  • Use diagrams on white board to explain depth of seal
  • Talk about traps
  • Transcript

    • 1. INSTALL DISCHARGE PIPES BCPCM 3002AJun 18, 2012 1
    • 3. OH&S HANDLING  ELEVATED WORK MATERIALS PLATFORMSFollow procedures and Operators should be adhere to OH&S familiar with requirements. equipment.Lifting equipment Appropriate PPE should should be used when be worn at all times required when working in a basket of a EWPJun 18, 2012 3
    • 4. Discharge Vs. Drainage Discharge pipes convey the waste water from fixtures to the drainage system.Jun 18, 2012 4
    • 5. Discharge Vs. DrainageJun 18, 2012 5
    • 6. Jun 18, 2012 6
    • 7. FACTORS IN SELECTION OF MATERIALS  Type of usage  Class of discharge  Properties of liquids conveyed  Soil type and condition  Environmental factors  Temperature  Characteristics of materials and productsJun 18, 2012 7
    • 8. Type of usage Various products Various locations (under ground/floors)Jun 18, 2012 8
    • 9. Properties of liquids Household waste (kitchen/bathroom/toilet) Industrial waste (grease/fat/oil/acid. Trade waste)Jun 18, 2012 9
    • 10. Soil type and condition Acidic soils High levels of Alkaline High levels of saltJun 18, 2012 10
    • 11. Environmental factors Exposed to sunlight Installed in an area where they can be easily damaged. Exposure to chemicalsJun 18, 2012 11
    • 12. Temperature Hot waste (dishwashers or glass washers) Additional support and allowance for expansion and contractionJun 18, 2012 12
    • 13. CHARECTERISTICS OF MATERIALS AND PRODUCTS What are some of the characteristics of the various types of pipe?  Expansion rates  Durability  Price  Resistance to chemicals  Suitability to particular types of waste  AS 3500.2 SECTION 2Jun 18, 2012 13
    • 14. AS 3500 2.2 Use of regulations  Discuss dot points as listed on page 11 of your unit notes. You need to be able to understand where we find information in the Australian StandardsJun 18, 2012 14
    • 15. Where do we find a trap?Traps are located under basins, sinks, showers, baths etcThe plumbing code states “The drainage discharge pipe from all sanitary fixtures will be constructed with a trap, or a self sealing mechanical device”Jun 18, 2012 15
    • 16. TRAPPING THE FIXTURE One type of trap is installed after the fixture is installed. One type of trap is formed in the fixture as part of the manufacturing, for example. (Urinals, Pans etc) This type is called an integral trapJun 18, 2012 16
    • 17. S and P trapsJun 18, 2012 17
    • 18.  S traps clear waste water to a vertical pipeJun 18, 2012 18
    • 19.  P traps deliver waste water to a horizontal pipeJun 18, 2012 19
    • 20. How do they work?A “U” shaped bend forms a water seal to prevent odours, bacterias and sewer gasses from pipe system coming back into buildings.Read A.S. 3500 CL. 6.4.2 Retained Water SealJun 18, 2012 20
    • 21. How does it work?A “U” bend in the pipe helps to maintain a water seal that prevents the gas from the sewer getting back through the fixture.Jun 18, 2012 21
    • 22. What is the water seal? The water will discharge once it gets to the spill level. The “U” shaped pipe under that will hold a water sealJun 18, 2012 22
    • 23. THE WATER SEAL The designed depth of the water seal in a W.C. and other 100 mm traps is 50mm, +/- 5mm and 75mm (-5 +35mm) for all other fixture traps. After a fixture has been used and the discharge of water completed, the trap must maintain a water seal with a 25mm min. depth.Jun 18, 2012 23
    • 24. THE WATER SEAL How much water is required to make a seal? Look up in your regs!!Jun 18, 2012 24
    • 25. PARTS OF THE FIXTURE TRAP  Inlet  Water seal  Crown  Crown weir  Outlet Look up the definition of a fixture trap in your plumbing codeJun 18, 2012 25
    • 26. Name the partsJun 18, 2012 26
    • 27. Name the partsJun 18, 2012 27
    • 28. WHAT STOPS THE STINK? How are sewer gasses stopped from entering the room from these pipes?Jun 18, 2012 28
    • 29. INSTALL DISCHARGE PIPES Please continue from here as the question follow thisJun 18, 2012 29
    • 31. INSTALL DISCHARGE PIPES1/ Should the discharge pipe, be connected to a fixture, before or after the fixture is fixed in place ? Depending on the circumstances it may be necessary to install the discharge pipe before the fixture has even been installed. In some instances it may be considered a better option if the pipe is installed after the fixture has been installedJun 18, 2012 31
    • 32. INSTALL DISCHARGE PIPES2/ List 6 factors, that may determine the materials suitable for a given job. Type of usage Class of discharge Properties of liquids conveyed Soil type and conditions Environment factors TemperatureJun 18, 2012 32
    • 33. INSTALL DISCHARGE PIPES3/ Copper pipe is available in different ‘types’. Which ‘type’ has the thickest wall thickness ? Type ‘A’Jun 18, 2012 33
    • 34. INSTALL DISCHARGE PIPES4/ In reference to the discharge pipe, what information could you gain from a site inspection ? Environmental factors such as:- exposed to excessive heat from the sun or other heat source, such as a furnace in a factory damaged by a vehicle at a factory where a forklift could crash into the unprotected pipe having exposure to corrosive chemicals such as acidsJun 18, 2012 34
    • 35. INSTALL DISCHARGE PIPES5/ When installing a pipe that is to pass through a timber beam, why is it regarded better practice to position the pipe through the centre, rather than cutting out the side of the timber ? As cutting through the side has the potential of weakening the overall structure.Jun 18, 2012 35
    • 36. INSTALL DISCHARGE PIPES6/ Calculate the fall of a 50mm discharge pipe which is to be run 2.8 metres, at the minimum grade allowable by the AS 3500.2. 70mmJun 18, 2012 36
    • 37. INSTALL DISCHARGE PIPES7/ When creating a material list to be used in the ordering of materials, what should you specify in the structure of your list ? Quantity Size Material Any detail (e.g. DN 100 copper or DN 80 PVC) Jun 18, 2012 37
    • 38. INSTALL DISCHARGE PIPES8/ Why is it important to check materials off, which have been delivered to you at the work site ? To ensure what you had ordered is in fact what you receivedJun 18, 2012 38
    • 39. INSTALL DISCHARGE PIPES9/ When you are about to fit the end of a pipe into a fitting such as a bend, why is it important to make sure the end of the pipe has been cut off squarely ? To make sure the pipe is pushed all the way into the socketJun 18, 2012 39
    • 40. INSTALL DISCHARGE PIPES10/ According to the AS 3500.2, what are the 2 methods for testing discharge pipes ? The hydrostatic water test The air testJun 18, 2012 40
    • 41. INSTALL DISCHARGE PIPES11/ With regards to an air pressure test, what is the pressure the pipeline must be subjected to and what is the minimum hold time required ? Pressure of 15 kpa Hold time of 3 minutes minimum Can drop a max of 2Kpa from 15kpa toJun 18, 2012 13Kpa within the 3 minutes test time. 41