UPSCALE-REVIEW CLASS

URINAL

Materials for Mains, Risers and Branches

1. Galvanized Iron, Sched 40 – is moderately corrosion resistant and suitable for mildly acid water, it is connected to its fittings with threaded connections. It is available in diameters from 12mm to 300mm at 6m length.

2. Polyvinyl Chloride Pipes, Sched 40- its economy and base of instructions make it popular, especially on low budget projects.

3. Polybutyline Pipe4. Polyethylene Pipes5. Copper Pipes and Tubes

a. Type K-used primarily for underground water service. It is color coded in green.

b. Type L-is most popular for use in water supply system. It is color-coded in blue.

c. Type M-it has the thinnest wall and is used where pressure id not too great. It is color-coded in red.

} A variety of fittings must be used to install the piping in the project. Fittings are accessories usully standardized, used for joining two or more pipes together.

} Fittings include:1. Nipple- a short of piece of pipe, threaded on the outside ( male threads) at both ends, used to join couplings or other fittings.

a. Short nipple- below 75mm in length. Also known as shoulder nipple.

b. Long nipple-over 75mm in lengthc. Close nipple-where threading meet.

2. Couple- a short internally threaded (female thread) at both ends and used to connect two pipes in a straight line.

3. Elbow- a pipe fitting having a bend and make an angle (900 or 450) between adjacent pipes for a change in direction. It is also known as ell or straight elbow.

4. Tee

5. Plug –is used to close an opening in a fitting

6. Cap- is used to close the end of a pipe.

7. Union- a three piece pipe fitting used to connect the ends of two pipes, neither of which can be turned. It is also used on pipes that are to be taken down occasionally. Its parts are threaded piece, center piece and shoulder piece.

8. Flange- a ring shape plate screwed on the end of a pipe and provided with holes for bolts, to allow joining the pipe to a similarly equipped adjoining pipe. The resulting joint is a flanged joint.

9. Extension Piece

} Are used to control the flow of water throughout the supply system. The proper location of valves simplifies repairs to the system, fixtures, or equipment being served.

} Valve Types are: 1. Gate Valve2. Globe Valve3. Check Valve4. Angle Valve5. Ball Valve/stop cock6. Faucet/ Bibb

Gate Valve- A valve in which the flow of water is cut off by means of a circular disc fitted against machine smoothed faces at right angle to the direction of flow.

Angle Valves

Globe Valve- A valve in which the flow of fluid is cut off by means of circular disc that fits over and against the horizontal valve seat.

} Check Valves- That automatically closed to prevent the flow of liquid or gas in a reverse direction.

Service /Saddle Clamp

Corporation Cock/Stop

Straight Coupling

Street Water Main

AdapterConcrete pipe valve box or

Curb stop box

To water meter

Service Pipe

Gate Valve (Curb Stop)

Corporation cock- A valve screwed into the street water main to supply the house service connection.Goose Neck- The part of a pipe curve like the neck of a goose, usually flexible.Curb Stop- A control valve for the water supply of a building, usually placed between the sidewalk and curb, used to shut off the water supply in a case of emergency or should the water supply of the building be discontinued.

Pipe Tap- This is used for internal pipe threading.

Pipe Cutter-Used for cutting G.I. pipe of copper tubing.

Pipe Reamer- This is used to remove the burr inside the pipe or to enlarge an opening.

Pipe stock and dies – This is used to make an external threads on G.I. pipes

Pipe Wrench- This is used to screw pipes into or cut of their fittings.

Monkey Wrench – This is used to tighten or or loosen fittings with parallel sides or hexagonal knees such as valves, unions, etc

Strap Wrench- This is used when working with brass on plated pipes and fittings, since it does not damage the surfaces being threaded, it is also used in places too small to admit a pipe wrench.

Pipe Tong/Chain Wrench – This is used for turning pipes usually with 100mm diameter and larger.

Basin Wrench

Open-End Wrench –This is used to pull up flange bolts and nuts.

Adjustable Wrench – This is used the same as that of a monkey wrench.

Flaring Tools – This is used to widen the end of a soft metal tubing usually copper, to make a mechanical seal.