Machine Drawing

140 Machine Drawing

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4. The joint is held firmly without slipping for 2 minutes and allowed to dry.

5. After 24 hours, the pipe lines are ready for use.

8.6 Pipe Layout

Pipe layout is a kind of drawing, that shows how the various pipes are fitted together, to make-

up a piping system. It shows the location, size and orientation of the pipe fittings and valves.

As the components of a system are standard ones, it is sufficient to show simplified

representation of the components.

Figure 8.15 shows the layouts of cast iron and GI pipe line, incorporating most of the

pipe fittings.

Gate valve Cap

Lateral

Cross

Globe valve

Elbow Plug Union

Elbow

Te e Flanged

Joint

Check

Valve

Transition

Piece

45° Elbow

(a) CI pipe layout

Ta p

Coupling

Pipe

Reducer elbow

Pipe

Flanges

Te e

Cross

Elbow

Full way

Valve

Pipe nipple

Union

Half way valve

Plug

Cock valve

Bend

(b) GI pipe layout

Fig. 8.15 Pipe layout