3. Jointting
 

Pipe

Applicable
Pressure

Before
Bolting

After
Bolting

Std.Thick
After Bolting 

Min.Bolting
Pressure

10~50A

50 kg/cm2

3 mm

5 mm

0.2~0.3 mm

 75 kgf/cm

50A~300A

"

5 mm

8 mm

0.3~0.4 mm

 100 kgf/cm

"

20 kg/cm2

7 mm

10 mm

0.4~0.5 mm

 125 kgf/cm

"

"

10 mm

14 mm

0.7~0.9 mm

 125 kgf/cm

"

"

13 mm

17 mm

1.0~1.2 mm

 150 kgf/cm

300A~

"

16 mm

20 mm

1.5~2.0 mm

 150 kgf/cm

"

"

19 mm

25 mm

2.0~2.5 mm

 150 kgf/cm

"

"

25 mm

30 mm

2.5~3.0 mm

 150 kgf/cm