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壹泵阀 >>手册>>阀门手册>>阀门中的压力损失>>6.1阀门的流量系数(下)

6.1阀门的流量系数(下)

表1-74 以公巧压力PW表示的对夹式止回巧的流量A:v值









公称尺寸

公称压力/W/MPa










£>.V/mm

NPS/in

1.0

1.6

2.5

4.0

6.4 10.0

16.0

20.0

25.0
















Kv值










50

2

36.6

36.6

36.6

36.6

36.6

36.6

36.6

36.6

36.6















65

八2

58.7

58.7

58.7

58.7

58.7

58.7

58.7

58.7

58.7















166

3

83-6

83.6

83.6

83.6

83.6

83.6

83.6

83.6

83.6















100

4

152.6

152.6

152-6

152.6

152.6

152.6

152.6

152.6

152.6















125

5

238.5

2%. 5

238.5

238.5

238.5

238.5

238..5

238.5

238.5















130

6

343.4

343.4

343.4

343.4

343.4

343.4

343.4

343.4

316.4















200

8

616..5

616.5

616.5

616.5

1

616.5

616.5

616.5

616.5

562.5















250

10

969. 1

969. I

969. I

969. 1

969. I

969.(

969A

969. I

871.7















300

12

1401

1401

140]

1401

1401

1401

1401

1401

1257















350

14

1702.4

1702.4

1702.4

1702.4

1702.4

1702.4

1582.3

1582.3

1514.2















400

16

2262

2262

2262

2262

2262

2262

2123.2

2123.2

1977.7















450

18

2901

2901

2901

2901

2901

2901

2730.5















500

20

3619.3

3619.3

3619.3

3619.3

3619.3

3619.3

3385.4















600

24

3694.2

5294.2

5294.2

5294.2

5294.2

5294.2

4958.1















650

26

6114.6

6II4.6

6114.6

6114.6

6114.6

6114.6

5809.5















700

28

7139.7

7139.7

7139.7

7139.7

7139.7

7139.7

6748.6















750

30

8179.7

8179.7

8179.7

8179.7

8179.7

8179.7

7736.1















800

32

8160.6

9260.6

9260.6

9260.6

9260.6

9260.6

8814.4















900

36

11657

11657

11657

11657

II657

11652

11155.8















1000

40

14535.7

14535.7

14535.7

14535.7

14535.7

14535.7















1050

42

15877

15877

15877

15877

15877

15877















1150

46

19142.6

19142.6 1 I9I42.6

19142.6

19142.6

I9I42.6














1200

48

20747.4

20747.4 20747.4

20747.4

20747.4

20747.4














表-75 W压力差CL表示的对夹双瓣式止回的流量压数Kv值









公称尺寸

CL









打‘V/mm

NPS/in

150

300

600

900

1500

2500











Kv值









50

2

36.6

36.6

36.6

36.6

36.6

36.9











65

2/1

58.7

58.7

58.7

58.7

58.7

41.3











80

3

83.6

83.6

83.6

83.6

83.6

58.7











100

4

152.6

152.6

152.6

152.6

152.6

115.5











125

5

238.5

238.5

238.5

238.5

238.5

193.9











150

6

343.4

343.4

343.4

343.4

316.4

261.9











200

$

616.5

616..5

616.5

616.5

562.5

489











250

10

969. 1

969.1

969. 1

969. 1

871.7

758.9











300

12

1401

1401

1401

1401

1257

1071.7











350

14

1702.4

1702.4

1702.4

1582.3

1514.2











400

16

2262

2262

2262

2123.2

1977.7











450

18

2901

2901

2901

2730.5











500

20

3619.3

3619.3

3619.3

3385.4











600

24

5144. 2

394-2

56194. 2

4958.1











公称尺寸

CL
















NPS/in

150

300

600

900

1500

2500















Ky值
















650

6114.6

6114.6

6114.6

5809.5















700

28

71 12.7

7139.7

7139.7

6748.6















750

30

8179.7

8179.7

8179.7

7736.I















800

32

9260.6

9260.6

W60.6

8814.4















900

36

II657

11657

11657

11155.8















1000

40

14535.7

14535.7

14535.7















1050

42

15877

15877

15877















1150

46

19142.6

19142.6

19142.6















1200

48

20747.4

20747.4


























































































































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