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Bulletin 71.1:SR5

SPRING RANGE,

PSIG (bar)

SET PRESSURE,

PSIG (bar)

INLET PRESSURE,

PSIG (bar)

Cv AT % DROOP

1-1/2-inch (DN 40) Full Port

Elastomer Diaphragm Metal Diaphragm

10% 20% 30% 10% 20% 30%

5 to 25

(0,4 to 1,7)

5 (0,4)

25 (1,7) 0.59 1.02 1.24 1.36 1.38 1.40

50 (3,4) 1.98 2.37 2.77 1.45 1.61 1.89

75 (5,2) 1.86 2.10 2.39 1.51 1.72 2.12

15 (1,0)

25 (1,7) 2.02 4.37 6.40 1.94 2.33 3.27

50 (3,4) 2.23 3.42 4.60 1.76 2.21 2.97

75 (5,2) 2.39 3.20 4.07 1.77 2.25 2.95

25 (1,7)

25 (1,7) 3.48 6.14 7.55 1.80 2.47 4.08

50 (3,4) 3.21 5.12 6.52 1.72 2.38 3.67

75 (5,2) 3.21 4.60 5.94 1.77 2.44 3.48

10 to 50

(0,7 to 3,4)

10 (0,7)

25 (1,7) 1.50 2.14 3.22 1.52 2.16 3.27

50 (3,4) 1.53 2.02 2.63 1.57 2.07 2.71

100 (6,9) 1.57 2.01 2.45 1.63 2.08 2.54

25 (1,7)

50 (3,4) 2.32 4.24 6.05 2.14 3.36 4.74

75 (5,2) 2.35 3.65 4.94 1.94 2.91 4.07

100 (6,9) 2.40 3.40 4.42 1.88 2.72 3.77

50 (3,4)

75 (5,2) 6.00 9.26 11.53 3.35 5.09 6.76

100 (6,9) 4.53 7.23 8.86 3.17 4.73 6.02

125 (8,6) 3.84 6.21 7.41 3.15 4.60 5.65

25 to 75

(1,7 to 5,2)

25 (1,7)

50 (3,4) 3.78 4.97 6.67 2.47 4.43 5.47

100 (6,9) 3.33 4.60 5.46 2.11 2.95 3.77

125 (8,6) 3.28 4.57 5.25 2.06 2.67 3.43

50 (3,4)

75 (5,2) 4.90 7.21 9.10 3.31 5.16 6.33

100 (6,9) 3.88 6.03 7.45 2.40 4.12 5.24

125 (8,6) 3.41 5.46 6.58 1.96 3.59 4.66

150 (10) 3.13 5.12 6.03 1.68 3.27 4.30

75 (5,2)

100 (6,9) 5.24 7.06 9.84 4.33 5.65 7.52

125 (8,6) 4.83 6.52 8.70 3.58 5.00 6.62

150 (10) 4.72 6.30 8.09 3.23 4.69 6.12

175 (12) 4.68 6.19 7.70 3.03 4.51 5.80

35 to 100

(2,4 to 6,9)

35 (2,4)

50 (3,4) 3.51 5.27 7.12 3.53 4.57 6.02

75 (5,2) 2.74 4.14 5.57 2.79 3.53 4.67

100 (6,9) 2.50 3.72 4.92 2.56 3.13 4.11

125 (8,6) 2.38 3.49 4.56 2.45 2.91 3.78

50 (3,4)

75 (5,2) 4.88 6.88 8.31 2.90 3.97 5.58

100 (6,9) 3.70 5.45 6.74 2.26 3.27 4.61

125 (8,6) 3.14 4.74 5.91 1.97 2.92 4.10

150 (10) 2.80 4.29 5.38 1.79 2.71 3.78

75 (5,2)

100 (6,9) 5.88 8.19 10.19 3.09 4.76 6.70

125 (8,6) 4.56 6.46 8.37 2.72 4.38 6.01

150 (10) 3.91 5.52 7.33 2.58 4.23 5.65

175 (12) 3.52 4.91 6.64 2.50 4.15 5.43

100 (6,9)

125 (8,6) 4.56 7.66 10.59 4.41 6.37 8.21

150 (10) 4.89 6.96 9.55 3.82 5.63 7.28

175 (12) 5.20 6.62 8.96 3.57 5.25 6.74

200 (14) 5.46 6.42 3.43 5.03

Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.

Table 7. Cv Coefcients for 1-1/2-inch (DN 40) Body (continued)

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 35 36

Bulletin 71.1:SR5 1

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Emerson SR5 Scheda Tecnica Pagina 11

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