NIBCO Check Valve Automatic Stop F869B User Manual

Page 14

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14

Theoretical Stop and Check Angle Valve Saturated Stem Flow Rates

(Figure Number F-869-B)

VALVE

SIZE

PRESSURE DROP

PSI

SATURATED STEAM

PRESSURE GAGE

STEAM VOLUME FLOW

POUNDS PER HOUR

2-1/2” 2

10

1,540

2-1/2” 2

50

2,420

2-1/2” 2

120

3,520

2-1/2” 2

250

4,840

3” 2 10

2,200

3” 2 50

3,520

3” 2 120

4,840

4” 2 10

3,740

4” 2 50

5,940

4” 2 120

8,250

4” 2 250 11,550
6” 2 10

9,900

6” 2 50

15,400

6” 2 120 23,100
6” 2 250 33,000
8” 2 10

16,500

8” 2 50

27,500

8” 2 120 38,500
8” 2 250 55,000

10” 2

10

27,500

10” 2

50

44,000

10” 2 120

63,800

10” 2 250

88,000

4” 5 10

7,150

4” 5 50

11,000

4” 5 120 16,500
4” 5 250 23,100
6” 5 10

16,500

6” 5 50

25,300

6” 5 120 37,400
6” 5 250 51,700
8” 5 10

29,700

8” 5 50

46,200

8” 5 120 66,000
8” 5 250 93,500

10” 5

10

48,400

10” 5

50

77,000

10” 5 120 104,500
10” 5 250 154,000


For any technical enquiries please call NIBCO Technical Services.

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