公稱通徑DN(mm)

3/4”

20

25

32

40

50

65

80

100

125

150

200

250

300

額定流量
系數(shù)kv

單座

P

0.08～0.8

1.2～5.0

8

12

20

32

50

80

120

200

280

450

 ；

雙座

N

 ；

10

16

25

40

63

100

160

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400

630

1000

1600

套筒

M

15

 ；

20

30

75

115

240

350