Page 104 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1
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90 bends from a fixed point using the 4 diameters back method 90 bends from a fixed point using a scrap piece of tube
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Required bend
Required bend
Fixed point
Fixed point
1 Measured length
4 diameters of pipe 1 Measured length
size back from the
2 bending point

Bending point
3 Start of the bend Bending point
mark on former
Guide
Tube stop 2 Guide
Tube stop

3

Scrap tube
Position of
Former 4 finished bend Former Position of
4 finished bend
p Figure 2.8 90° bends: method 1 p Figure 2.9 90° bends: method 2

2 Place a mark at
1 Measured length the centre of the
bend and place a
second mark to
make a cross

Bending mark
3 Place the centre
of the X mark
against the
bending former

4 Position of
finished bend
p Figure 2.10 45° sets

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