公称通径Nominal diameterDN

常用压力(常温)

Normal pressure (room temperature)

*小弯曲半径

Minimum bending radius

mm

inch

kgf/cm²

mm

10

3/8"

10

500

15

1/2"

10

500

20

3/4"

10

500

25

1"

10

600

32

1-1/4°

10

700

40

1-1/2*

10

1000

50

2"

8

1600

65

2-1/2*

7

2000

80

3"

6

2400

100

4"

6

3000

125

5"

5

150

6"

5

一

200

8"

5

250

10"

4

-