Flow of Air Through Sch. 40 Steel Pipe

Air

FlowofP.D.

through Sch.

Flow

Air Through

Sch. 40

40 Steel

Steel Pipe

Pipe

FreeAir

CFM

(60 F and 14.7 PSIA)

1

2

3

4

5

6

8

10

15

20

25

30

35

40

45

50

60

70

80

90

100

125

150

175

200

225

250

275

300

325

350

3f

400

425

450

475

500

550

600

650

700

750

800

850

900

950

1000

1100

1200

1300

1400

1500

1600

1800

2000

2500

3000

500

000

500

5000

. 6000

000

8000

9000

10000

11000

12000

CompressedAir

CFM

(60 F and 100 PSIG\

0.128

0.256

0.384

0.513

0.641

0.769

1.03

1.28

1.92

2.56

3.20

3.85

4.49

5.13

5.77

6.41

7.69

8.97

10.25

11.53

12.82

16.U,

19.22

22.43

25.63

28.84

32.04

35.24

38.45

41.65

44.87

48.06

51.26

04.4r

57.67

60.88

64.08

70.49

6.90

83.30

89.71

96.12

102.50

108.90

115.30

121.80

128.20

141.00

153.80

166.60

179.40

192.20

205.10

230.70

256.30

320.40

384.50

448.60

512.60

576.70

640.80

769.00

897.10

1025.00

113.po

1282.uO

1410.00

1538.00

I'ressure Drop of Air in PSI

Per 100feet of Schedule40 Pipe

For Air at 100 PSIG i:h60 F

118"

0.361

1.31

3.06

4.83

7.45

10.60

18.60

28.70

...

...

...

...

...

...

...

1/4"

0.083

0.285

0.605

1.04

1.58

2.23

3.89

5.96

13.00

22.80

35.60

...

...

...

...

21/2"

0.019

0.023

0.029

0.U44

0.062

0.083

0.107

0.134

0.164

0.191

0.232

0.270

0.313

0.356

0.402

o.42

0.507

0.562

0.623

0.749

0.887

1.04

1.19

1.36

1.55

1.74

1.95

2.18

2.40

2.89

3.44

4.01

4.65

5.31

6.04

7.65

9.44

14.70

21.10

28.80

37.60

4 .60

...

...

...

...

...

...

...

...

...

...

3"

...

...

...

OOZO

0:042

0.071

0.106

0.148

0.255

0.356

0.834

1.43

2.21

3.15

4.24

5.49

6.90

8.49

12.20

16.50

21.40

27.00

33.20

...

3%"

0.022

0.027

0.032

0.037

0.043

0.050

0.05f

0.064

0.072

0.081

0.089

0.099

0.118

u.139

0.163

0.188

0.214

0.244

0.274

0.305

0.340

0.375

0.451

0.533

0.626

0.718

0.824

0.932

1.18

1.45

2.25

3.20

4.33

5.66

7.16

8.85

12.70

17.20

22.50

28.50

35.20

...

...

...

...

...

...

...

...

...

1666.00

1794.00

1922.00

16000

21.0U

...

18000

20000

22000

230r.00

2563.00

2820.00

...

...

...

24000

26000

3076.0

3332.00

...

...

28000

30000

3588.00

3845.00

...

...

...

...

...

...

...

...

...

no

1/2'

...

0.021

0.028

0.036

0.045

0.055

0.066

0.078

0.090

0.104

U.119

0.134

0.151

0.168

0.187

0.206

0.248

0.293

0.342

0.395

0.451

0.513

0.576

0.642

0.715

0.788

0.948

1.13

1.32

1.52

1.74

1.97

2.50

3.06

4.76

6.82

9.23

12.10

15.30

18.80

27.10

36.90

13000

14000

15000

...

...

318"

0.018

0.064

0.133

0.226

0.343

0.408

0.848

1.26

2.73

4.76

7.34

10.50

14.20

18.40

23.10

28.50

40.70

...

...

...

...

...

...

...

...

...

...

...

...

...

4'

0.U3U

0.034

0.038

0.042

0.047

0.052

0.062

OUf3

0.U86

0.099

0.113

0.127

0.144

0.160

0.178

0.197

0.236

0.279

0.327

0.377

0.431

0.49u

0.616

0.757

1.17

1.67

2.26

2.94

3.69

4.56

6.57

8.94

11.70

14.90

18.40

22.20

26.40

31.00

36.00

...

...

...

...

...

...

...

...

...

3/4"

0.027

0.037

0.062

0.094

0.201

0.345

0.526

0.748

1.00

1.30

1.62

1.99

2.85

3.83

4.96

6.15

7.69

.9u

.00

23.10

30.00

37.90

...

...

...

...

...

...

...

...

1"

0.019

0.029

0.062

0.102

0.156

0.219

0.293

0.379

0.474

0.58

0.82

1.10

1.43

1.80

2.21

3.39

4.87

6.60

8.54

10.80

13.30

16.00

19.00

22.30

25.80

,9.60

33.60

37.90

...

...

...

:I'

...

...

...

11/4"

1V."

0.026

0.039

0.055

0.073

0.095

0.116

0.149

0.200

0.27

0.350

0.437

0.534

0.82

.1(

1.58

2.05

2.59

3.18

3.83

4.56

5.32

6.17

.O

8.02

9.01

10.20

11.30

12.50

15.10

18.uu

21.10

24.30

27.90

31.80

35.90

40.20

0.019

0.026

0.035

0.044

0.055

0.067

0.094

0.126

.162

.203

.247

.31:10

0.537

0.727

0.937

1.19

1.45

1.75

2.07

2.42

2.80

3.,0

3.64

4.09

4.59

5.09

5.61

6.79

I:I.U4

9.43

10.90

12.60

14.20

16.00

18.00

20.00

22.10

26.70

31.80

37.30

2"

0.019

0.027

0.036

0.046

0.058

0.070

u.07

0.151

0.205

0.264

0.331

0.404

0.484

U.(3

0.673

0.776

0.887

1.00

1.13

1.26

1.40

1.55

1.87

,.,1

2.60

3.00

3.44

3.90

4.40

4.91

5.47

6.06

7.29

8.63

10.10

11.80

13.50

15.30

19.30

23.90

37.30

0.032

0.036

0.041

0.046

0.051

0.057

0.063

0.075

0.089

0.103

0.119

0.136

0.154

0.193

0.237

0.366

0.524

0.f09

0.919

1.16

1.42

2.03

2.76

3.59

4.54

5.60

6.78

0.023

0.025

0.030

0.035

0.041

0.047

U.04

0.061

0.075

0.094

0.143

0.204

0.26

0.358

0.450

0.552

U.94

1.07

1.39

1.76

2.16

2.62

0.023

0.035

0.051

0.008

0.088

0.111

0.136

0.195

0.262

0.339

0.427

0.26

0.63

0.016

11'.022

0.028

0.035

0.043

0.u6

0.082

0.11

0.13

0.16

0.20

0.D18

0.025

0.034

0.044

0.055

0.067

0.081

8.07

9.47

1 .00

3.09

3.63

4.21

0.75

0.88

1.02

U.,3

0.27

0.32

0.096

0.112

0.129

6"

...

...

...

...

...

...

...

8" .

10"

12"

12.60

4.84

1.17

0.364

0.148

14.30

18.20

22.40

:.!f.1U

5.50

6.96

8.60

1.33

1.68

2.01

0.167

0.213

0.260

32.30

1U.4U

12.40

2.u

2.97

0.411

0.520

0.642

U.

37.90

...

14.50

16.90

3.49

4.04

...

19.30

McGuire Air Compressors Inc. 1-888-229-9999

4.64

0.92

U.314

0.371

1.12

1.25

1.42

0.435

0.505

0.520

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