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FLOW CONVERSION RATIOS

CONVERSION FACTORS

LINEAR MEASURES
1) To turn inches to millimeters multiply by 25.4.


PRESSURE/STRESS
To turn:
2) Kg/mm2 to KPSI multiply by 1.422
3) KPSI to Kg/mm2 multiply by 0.7033
4) PSI to BAR multiply by 0.0689
5) BAR to PSI multiply 14.5


TORQUE
To turn:

6) Foot Pound to Kgm multiply by 0.13825
7) Foot Pound to Newton-m multiply by 1.356
8) Kgm to Foot Pound multiply by 7.233
9) Newton-m to Foot Pound multiply by 0.738
10) Newton-m to Foot Pound multiply by 0.102
11) Kgm to Newton-m multiply by 9.808

TEMPERATURE
To
turn:
12) Grades Fahrenheit(ºF) to Grades Celsius(ºC) use the following formula: ºC=5/9(ºF-32)
13) Grades Celsius(ºC) a Grades Fahrenheit(ºF) use the following formula: ºF=9/5 C + 32

 

FLOW COEFFICIENTS

Note: “VC” Valve Coefficient of flow is defined as a 60ºF (15.6ºC) water flow in gallons per minute, with a pressure drop of one pound per square inch through the valve.

 

BALL VALVE

DIN DN ANSI 150-300 ANSI 600 ANSI 900 ANSI 1500 ANSI 2500
2" 535 471 356 356 283
3" 1211 1082 886 886 681
4" 2146 1938 1739 1565 1315
6" 5185 4678 4265 3792 3600
8" 9293 8483 7536 7160 6800
10" 14648 13869 11981 11380 10810
12" 21802 20903 17497 16620 15790
14" 26078 23657 21124 - -
16" 34066 31013 27848 - -
20" 55770 50707 45700 - -
24" 85190 76700 - - -
26" 113158 102871 - - -
30" 149650 136047 - - -

 

GATE VALVE

DIN DN ANSI 150-300 ANSI 600 ANSI 900 ANSI 1500 ANSI 2500
2" 307 294 268 268 173
3" 709 680 649 596 399
4" 1297 1245 1214 1062 668
6" 3107 2982 2854 2489 -
8" 5718 5534 5026 4378 -
10" 8934 8493 7844 6840 -
12" 13351 12801 11465 - -
14" - - - - -
16" 21562 20172 18172 - -
20" 35760 32141 - - -
24" 52165 - - - -
26" - - - - -
30" 86235 - - - -

 

CHECK VALVE

DIN DN ANSI 150-300 ANSI 600 ANSI 900 ANSI 1500 ANSI 2500
2" 124 124 109 109 70
3" 320 320 290 270  
4" 580 580 540 470  
6" 1330 1330 1220 1060  
8" 2400 2320 2110 1835  
10" 3800 3610 3340 2910  
12" 5560 5230 2870    
16" 10150 9490 8550    
20" 16520 14850 13650    
24" 24650 22070 20110    
26" 29420 26030 23890    

Note: "CV" Valve coefficient of flow is defined as a 60ºF (15,6ºC) water flow in gallons per minute, with a pressure drop of one pound per square inch through the valve

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