Machine Drawing

Pipe Joints 129

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d:\N-Design\Des8-1.pm5 Seventh Print

(c)

f 170

f 100

12

25

5

f

125

25 80

f

220

80

4 BOLTS, M18

Fig. 8.3 Cast iron pipe joints

8.2.2 Joints for Copper Pipes

Copper pipes are usually solid drawn. Separate flanges, made of gunmetal for smaller pipes

and steel or wrought iron for larger pipes are attached to the pipe ends by brazing. The joint is

obtained by means of a number of bolts and nuts (Figs. 8.4a and b).

(a)

12 12

4 BOLTS, M9^3

6 6

f

56

f

68

f

92

f

112

(c)

12 12

4 BOLTS, M9^3

f

56

f

80

f

100

f

50

(b)

f

50

Fig. 8.4 Copper pipe joints