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Series 152a adjusting spring range chart, Capacity, Dimensions — weights – Watts 152A User Manual

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ES-152A 0403

© Watts Regulator Co., 1996

Printed in U.S.A.

USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.wattsreg.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca

A

D

C

Flow

Flow

Flow

Pressure Drop

Pressure Drop

Pressure Drop

Series 152A

Adjusting Spring Range Chart

SIZE

*ADJUSTABLE RANGES

SPRING AND MODEL NO.

in.

mm

psi

bars

1

2

15

3 – 15

.21 – 1.05

145

1

2

15

10 – 50

.70 – 3.51

146

1

2

15

30 – 140

2.11 – 9.84

141

3

4

20

3 – 15

.21 – 1.05

145

3

4

20

10 – 50

.70 – 3.51

146

3

4

20

30 – 140

2.11 – 9.84

141

1

25

3 – 15

.21 – 1.05

146

1

25

10 – 30

.70 – 2.11

128

1

25

30 – 140

2.11 – 9.84

142

1

1

4

32

3 – 15

.21 – 1.05

146

1

1

4

32

10 – 30

.70 – 2.11

128

1

1

4

32

30 – 140

2.11 – 9.84

142

1

1

2

40

5 – 40

.35 – 2.81

276

1

1

2

40

30 – 100

2.11 – 7.03

299

2

50

5 – 40

.35 – 2.81

276

2

50

30 – 100

2.11 – 7.03

299

*The minimum reduced pressure ranges shown are recommended
only when very sensitive regulation service is needed for specific
requirements. However, all valves may be adjusted below the working
range minimums shown for lower regulation or complete shut off.

SIZE (DN)

DIMENSIONS

WEIGHT

A

C

D

in.

mm

in.

mm

in.

mm

in.

mm

lbs.

kg.

1

2

15

6

152

7

178

1

15

16

49

11

4.99

3

4

20

6

152

7

178

1

15

16

49

11

4.99

1

25

7

1

2

191

7

1

2

191

2

3

16

56

20

9.07

1

1

4

32

7

1

2

191

7

1

2

191

2

3

16

56

20

9.07

1

1

2

40

9

229

11

1

4

286

2

3

4

70

40

18.14

2

50

9

229

11

1

4

286

2

3

4

70

40

18.14

bars psi

1.4

20

1.0

15

0.7

10

0.3

5

0

0

2

4

6

8

10

12 gpm

7.6

15.2

22.8

30.4

38

45.6 lpm

bars psi

1.4

20

1.0

15

0.7

10

0.3

5

0

0

bars psi

1.7

25

1.4

20

1.0

15

0.7

10

0.3

5

0

0

5

10

15

20

25

30

35

40 gpm

19

38

57

76

95

114

133

152 lpm

5

10

15

20

25

30

35 gpm

19

38

57

76

95

114

133 lpm

Quick Reference Capacity Chart For Average Conditions

From

From

From

From

From

From

From

From

From

psi

bar

psi

bar

psi

bar

psi

bar

psi

bar

psi

bar

psi

bar

psi

bar

psi

bar

Initial Pressure

50

3.52

75

5.27

100

7.03

125

8.79

150 10.55 175 12.3 200 14.06

225 15.82 250 17.58

Up To

Up To

Up To

Up To

Up To

Up To

Up To

Up To

Up To

Reduced Pressure

20

1.41

35

2.46

50

3.52

60

4.22

70

4.92

80

5.62

90

6.33 100

7.03 125 8.79

in.

mm

*Maximum Capacities in Lbs. of Steam Per Hour

152A

1

2

"

15

80

111

143

175

205

237

270

299

332

152A

3

4

"

20

285

394

506

620

726

841

956

1060

1178

152A

1"

25

402

557

715

875

1025

1186

1349

1497

1663

152A

1

1

4

"

32

442

613

786

962

1127

1305

1484

1646

1830

152A

1

1

2

"

40

665

870

1120

1355

1600

1950

2230

2460

2725

152A

2"

50

765

1000

1285

1490

1840

2242

2564

2829

3134

*1 Lb. Steam Equals 970 BTU Per Hour

Capacity

152A Size

1

2

" (15mm)

152A Size

3

4

" (20mm)

152A Size 1" (25mm)

Range 30 - 140

Range 10 - 50

Range 3 - 15

Range 30 - 140

Range 10 - 50

Range 3 - 15

Range 30 - 140

Range 10 - 50

Range 3 - 15

Dimensions — Weights