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Headloss, Valve cover chamber capacity, Valve travel – Watts S400 / S1400 User Manual

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Headloss

Flow Rate - Gallons per minute (Water)

Pressure Drop (psi)

Angle
Globe

100

80

60

40

30

20

10

8

6

4

3

2

Maximum continuous flow based on velocity of 20 ft. per second.
Maximum intermittent flow based on velocity of 25 ft. per second.
The C

v

Factor of a value is the flow rate in US GPM at 60°F that will cause a 1psi drop in pressure.

The factors stated are based upon a fully open valve.
C

v

factor can be used in the following equations to determine Flow (Q) and Pressure Drop (∆P):

Q (Flow) = C

v

√∆P ∆P (Pressure Drop) = (Q/C

v

)

2

ES-ACV-S400-S1400 1219

© 2012 Watts

USA: Tel. (713) 943-0688 • (713) 944-9445 • www.watts.com

A Watts Water Technologies Company

2

4

6 8 10

20

40

60 80 100

200

500

1000

2000

5000

10000

20000

S400 / S1400 — Full Port Stainless Steel Single Chamber Basic Valve
with Mechanical Check Feature

Flow Data - ACV S400 (Globe) / S1400 (Angle)

Valve Size - Inches

4

6

8

10

12

16

Maximum Continuous

Flow Rate Gpm (Water)

800

1850

3100

5000

7000

11100

Maximum Intermittent

Flow Rate Gpm (Water)

1000

2300

4000

6250

8900

14100

C

V

Factor GPM (Globe)

210

460

790

1260

1725

2940

C

V

Factor GPM (Angle)

250

561

990

1590

2500

4200

Estimated

Valve Cover Chamber Capacity

Valve Size - Inches

4

6

8

10

12

16

fluid oz.

22

70

U.S. Gal

1-1/4

2-1/2

4

9-1/2

Valve Travel

Valve Size - Inches

4

6

8

10

12

16

Travel - Inches

1

1-1/2

2

2-1/2

3

4

4

6

8

10

12

16

4

6

8

10

12

16