Cla-Val 100-29S - Manual (Page 3)

Model 100-29S Flow Chart (Based on normal flow through a wide open valve)
K =
894d
4
C 2 v
L =
K
12 f
K Factor (Resistance Coefficient)
The Value of K is calculated from the formula:
(U.S. system units)
Equivalent Length of Pipe
Equivalent lengths of pipe (L) are determined from the formula:
(U.S. system units)
Fluid Velocity
Fluid velocity can be calculated from the following formula:
(U.S. system units)
d
V =
.4085 Q
2 d
C
V
Factor
Formulas for computing C Factor, Flow (Q) and Pressure Drop
V
( P):
C
V
=
Q
P
C
V
= Q P
C
V
=
Q
P
2
V
Where:
U.S. (gpm) @ 1 psi differential at 60 F water
(l/s) @ 1 bar (14.5 PSIG) differential
or
at 15 C water
inside pipe diameter of Schedule 40 Steel Pipe (inches)
friction factor for clean, new Schedule 40 pipe
(dimensionless) (from Cameron Hydraulic Data,
18th Edition, P 3-119)
Resistance Coefficient (calculated)
Equivalent Length of Pipe (feet)
Flow Rate in U.S. (gpm) or (l/s)
Fluid Velocity (feet per second) or (meters per second)
Pressure Drop in (psi) or (bar)
=
=
=
=
=
=
=
=
= P
V
Q
L
K
f
d
C
Functional Data Model 100-29S
Valve Size
Inches 3 4 6 8 10 12 14 16 18 20 24 30 36 42 48
mm. 80 100 150 200 250 300 350 400 460 500 600 750 900 1000 1200
C V
Factor
Globe
Pattern
Gal./Min. (gpm.) 62 136 229 480 930 1458 1725 2110 2940* 3400* 4020 7900* 11910* 14500* 15800*
Litres/Sec. (l/s.) 15 32.5 55 115 223 350 414 506 705 816 966 1895 2858 3483 3796
Angle
Pattern
Gal./Min. (gpm.) — 135 233 545 CF** CF** CF** CF** CF** CF** CF** — — — —
Litres/Sec. (l/s.) — 32 56 132 CF** CF** CF** CF** CF** CF** CF** — — — —
Equivalent
Length
of
Pipe
Globe
Pattern
Feet (ft.) 293 251 777 748 621 654 750 977 983 1125 3005 2130 2862 4232 7028
Meters (m.) 89.3 76.4 237.1 228.1 189.5 199.4 229 298 300 343 917 650 872 1290 2142
Angle
Pattern
Feet (ft.) — 254 751 580 CF** CF** CF** CF** CF** CF** CF** — — — —
Meters (m.) — 77.6 229 176.9 CF** CF** CF** CF** CF** CF** CF** — — — —
K
Factor
Globe Pattern 20.6 12.7 23.1 15.7 10.4 8.5 8.9 10.2 8.4 8.8 19.1 10.5 9.7 12.3 17.8
Angle Pattern — 12.9 22.3 12.2 CF** CF** CF** CF** CF** CF** CF** — — — —
Liquid Displaced from
Cover Chamber
When Valve Opens
Fl. Oz — — — — — — — — — — — — — — —
U.S. Gal. 0.32 .08 .17 .53 1.26 2.51 4.0 4.0 9.6 9.6 9.6 29.0 42 90 90
ml — — — — — — — — — — — — — — —
Litres .12 .30 .64 2.0 4.8 9.5 15.1 15.1 36.2 36.2 36.2 110 197 340 340
*Estimated **Consult Factory