Powerpoint Plumbing

7/28/2019 Powerpoint Plumbing

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Plumbing

Definition all the piping and fixtures thatprovide water for drinking, cooking,

bathing, and laundry, as well as a meansof disposing of wastewater.


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Codes

Why is it important to follow codes? If it is not up to code it will not pass inspection and will

have to be torn out and redone becoming very costly. If it is poorly designed then it will not work well and

owner will be unsatisfied. Could cause wastewater to mix with potable water if not

installed properly.Different codes: The Uniform Plumbing Code (UPC), Basic Building Code,

ICBO Plumbing Code, National Plumbing Code, andStandard Plumbing Code Each code is sponsored by a professional organization Once code is adopted by government then it can be

enforced as a law. Plumbers should know different

codes in places they are working.


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Two Separate Systems

Water Supply System:

This system distributes water under pressure throughoutthe structure for drinking, cooking, bathing, and laundry.

Its a two pipe system, one with cold and one with hot. Must be watertight because of the strong pressure

system.

DWV (drainage, waste, and venting) System:

This system carries away wastewater and solid wastefrom bathrooms, kitchens, and laundries and is notunder pressure.

Must be well vented because it prevents back pressureand siphoning of water from traps.


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Tools

Measuring Tools: rules, tapes, squares, levels, transits, plumb bobs, chalk

lines, compasses, and dividers Plumbing requires precise measuring and the tools they

use must be capable of achieving this accuracy.Cutting Tools: various saws, files, chisels, snips, and pipe cutters most use power tools because they save time and effort

and most are metal-cutting reaming and threading tools are also when working with

metal pipeWrenches: pipe wrenches, pliers, vice grips, chain wrenches, strap

wrenches, monkey wrenches, and adjustable wrenches


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Materials

Copper: available as rigid lengths or flexible coils can be cut with a pipe cutter or hacksaw joined with compression fittings or by sweat solderPlastic: available in lengths and can be cut with a handsaw joined with fittings and special adhesive 4 types: Chlorinated polyvinyl chloride (CPVC),

Polybutylene (PB), Acrylonitrile butadiene styrene (ABS),

and Polyvinyl chloride (PVC)Iron: soft cast iron made from gray iron does not leak or

absorb water and is very quiet two types of cast iron soil pipe: Service (SV) and Heavy

(XH)


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Valves

devices that control the flow of water in thewater supply system

put in certain places so the water can be shutoff or pressure can be reduced

made from bronze, brass, malleable iron, castiron, thermoset plastic, and thermoplastic

faucets valves that permit controlled amounts

of water as needed for use in a building; deliverto such fixtures as sinks, lavatories, showers,and bathtubs


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Fixtures

water-using devices, such as sinks,lavatories, bathtubs, bidets, urinals,

stools, or showers they receive water from the supply system

and are set up to deliver wastewater to

the DWV system


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Print reading

certain symbols have been standardizedfor the plumbing trade

3 types of sketches: riser diagrams, planview sketches, and isometric sketches


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Installing Plumbing

the first phase of plumbing installed in abuilding is known as a rough-in

the endings of pipes that extend out fromthe walls and above the floors are knownas stub-ins

vent stacks are venting pipes that areconnected to a large riser that extendsthrough the roof


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Wells and Pumps

many houses and buildings outside of city limits havetheir own wells which require pumps and supply tanks tomaintain a constant water supply

wells are lined with casing the keeps contaminates fromgetting into the water

Drilled Wells: percussion method a chisel-shaped bit is raised and

lowered by a cable creating a pounding action thatbreaks up the subsurface material

rotary method used when water table is far below thesurface; tall mast and water create slurry that is pumpedto the surface and discarded

Bored Wells: made with earth auger that cuts and lifts subsurface

material


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Safety

safety goggles should always be worn hard hats should be used if there is any danger

of falling objects non-flammable clothing should be worn when

welding as well as protective gloves whenhandling plumbing material but not when usingpower tools; also protective shoes are a good

measure to take jewelry should never be worn lifting and carrying heavy materials should

always be done properly

Documents

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