1. Presented by

2. The course you are attending is:
PLUMBING AND GAS FITTING
Installing gas piping systems

3. Introduction to the Course
Aims:
To be aware of all the materials and installation requirements to install gas pipework.

4. All must be installed to current standards and legislation
Assessment criteria
Supply pipework/fitting lines/apparatus
Flexible hoses and couplings
Installation
Apparatus
Overpressure protection
Install N.G. pipework to three appliances
All must be installed to current standards and legislation

5. Standards which must be followed
Codes and Standards
Most information can be found in AS5601 for pipework up to 200Kpa……see table on page 247
G.S.R-1999 requirements are
Part 1- Definitions
Division 2- Meters
Division 4- Fitting lines and fittings
Division 5- Avoidance of hazards, Bayonet outlets
Schedule 7- Codes and standards
AS5601 Sections 1.0, 2.0, 3.0, and 4.0 all have some referencing but the majority of info can be found in
Section 3.0 Materials and components
Section 4.0 Installing consumer piping

6. Working with Gas
Safe working habits should be employed at all times in order to avoid hazards which may contribute to personal injury or damage to property or equipment.
When you are working with gas you need to remember the following:
Minimise obstructions to reduce the hazards of an untidy work place.
Gas in a confined space can be dangerous so make sure the area you work in is ventilated.
Follow gas or electrical safety procedures described later in this unit.
No naked flames near gas.

7. Terms and Definitions page 7 onwards
Please state the following
Bathroom
Burner
Consumer piping
Fitting
Gas
Gas Installation
Services
Fitting line
Supply
Apparatus

8. Pipework Copper page 3 of notes
Materials will depend on various factors
Job spec, location, length of run, type of gas.
Only 2 types of copper tube are allowed.
Name them?

9. Pipework Copper page 3 of notes
Prohibited joints

10. Pipework Copper page 3 of notes
Approved joints

11. Pipework Copper page 3 of notes
Corroded copper

12. Pipework Copper AS5601

13. Pipework Steel page 4 of notes
Materials will depend on various factors
Job spec, location, length of run, type of gas.
The steel can be galvanised or black iron.

14. Pipework Steel page 4 of notes
Approved joints
All joints must be accessible
Approved welding joints and flanges can also be used
The table continues over 4 pages, look in the AS5601

15. See table in AS5601 and answer questions on page 4 of notes.
Pipework PVC page 4 of notes
Must be approved to AS1464.
Max pressure 70KPa .
See table in AS5601 and answer questions on page 4 of notes.

16. Pipework PVC Jointing page 5 of notes
Most joints are Solvent weld but you can also use compression fittings with neoprene “o rings” often referred to as philmac .
No internal threads can be used and any jointing compounds must be PTFE tape only

17. Pipework Polyethylene page 5 of notes
Must be approved to AS1667.
Max pressure 200KPa .
See table in AS5601.
Can only be installed underground outside (must be accessible) NOT IN BUILDINGS

18. Jointing Sealants must be PTFE tape only
Pipework Polyethylene page 5 of notes
Most joints are electro fusion but you can also use compression fittings .
Jointing Sealants must be PTFE tape only

19. Can only be installed out of direct sunlight
Pipework Composite Polyethylene also known as cross-linked PEX/AL/PE-X page 5 of notes
Must be approved to AS4176.
Max pressure 70KPa .
See table in AS5601.
Can only be installed out of direct sunlight

20. Prohibited gas fittings in general page 5 of notes
Plain threaded type nipples
Olive type fittings
Long screws
Capillary fittings with soft solder
Internally threaded UPVC
If you see these installed inform your customer and if possible remove .
See AS5601.

21. Flexible hose assemblies page 6 of notes
Commonly found to connect to a cooker/flueless space heater.
Used where there is the possibility of vibration, and where its connection/disconnection is required.

22. Pipework support
Answer the questions on pages 6,7,8 and the top of page 9 of your training notes.

23. Approved jointing compounds
Some approved pastes are:
Boss white (AGA Approved only)
Loctite 567
Hawkins
Loxeal
Mirror 577
Rocol R.A.S. Gas Seal
Hermatite gas jointing compound
Do not use any jointing compounds on flared joints.
Most pastes are limited to 75KPa
Check that tapes are AGA approved before using, always try to use compounds as these create a much better joint.

24. NOT Approved jointing compounds
Some non-approved pastes are:
Hemp
Paint
Grease
Must be AGA approved

25. Fit the clip upstream of the work.
Downstream
Fit the clip upstream of the work.
Fit the second clip downstream of the work.
Carry out the work without disturbing the temporary continuity bond.
When the work is complete, remove the downstream clip first and the upstream clip last.
Bridging is only necessary when removing/replacing pipework
or removal of meters with no metal bracket.

26. LOCATION OF CONSUMER PIPING AS5601
Gas Pipework must not be installed in locations where it may constitute a hazard in the event of a fire,or it may be damaged
Plastic pipes laid in open trenches requires marker tape and must terminate at least 450mm underground
Any risers are to be metallic pipe. Composite pipe exposed to sunlight requires protection from sunlight.
 Pipework laid in trenches with other services may be damaged when work to excavate those other services is carried out
Pipework in concealed locations may also create a hazard if leakage occurs due to corrosion or damage.

27. LOCATION OF CONSUMER PIPING AS5601
Have a look at the AS5601 for other requirements

28. LOCATION OF CONSUMER PIPING AS5601
Have a look at the AS5601 for other requirements

29. LOCATION OF CONSUMER PIPING AS5601
Isolating Valves
Plug Cocks
Butterfly Valves
Needle Valves
Solenoid Valves
Ball Valve
Have a look at the AS5601 for other requirements

30. LOCATION OF CONSUMER PIPING AS5601
Isolating Valves
Have a look at the AS5601 for other requirements

31. Now complete all the questions in work book
Now complete all the questions in work book. Cross referencing to your AS5601