PEECO Flow Rate Table

PEECO Flow Rate and Pressure Drop Information

 

Installing a PEECO Flow Switch
Click for Installation Recommendations

Please Select Your Line Size:


Line Sizes from 1/4 to 3/4 inch. * Minimum Flow Rates Required For Actuation

PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP
1/4" STDINCREASING1.174 4.72 PSI6.621.54 PSI
DECREASING1.1554.39 PSI4.200.65 PSI
1/4" LOW FLOWINCREASING0.1484.59 PSILESS THAN 0.050.43 PSI
DECREASING0.134.58 PSILESS THAN 0.050.425 PSI
1/4" LOW-LOW FLOWINCREASINGLESS THAN 0.056.39 PSILESS THAN 0.050.425 PSI
DECREASINGLESS THAN 0.058.84 PSILESS THAN 0.050.425 PSI
1/2" STDINCREASING1.940.64 PSI8.90.5 PSI
DECREASING1.660.60 PSI8.00.5 PSI
1/2" LOW FLOWINCREASING0.220.7 PSILESS THAN 0.040.798 PSI
DECREASING0.200.7 PSILESS THAN 0.040.735 PSI
1/2" LOW-LOW FLOWINCREASINGLESS THAN 0.011.15 PSILESS THAN 0.040.798 PSI
DECREASINGLESS THAN 0.011.13 PSILESS THAN 0.040.70 PSI
3/4" STDINCREASING3.140.06 PSI13.90.07 PSI
DECREASING2.420.06 PSI11.420.07 PSI
3/4" LOW FLOWINCREASING0.5990.8 PSI5.370.036 PSI
DECREASING0.5990.8 PSI4.670.036 PSI
3/4" LOW-LOW FLOWINCREASING0.011.22 PSILESS THAN 0.050.036 PSI
DECREASING0.011.22 PSILESS THAN 0.050.036 PSI
PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP


Line Sizes from 1 to 2 inches. * Minimum Flow Rates Required For Actuation

PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP
1" STDINCREASING3.20.06 PSI23.630.07 PSI
DECREASING2.50.06 PSI19.410.07 PSI
1" LOW FLOWINCREASING0.6550.785 PSI9.1290.036 PSI
DECREASING0.640.78 PSI7.9390.036 PSI
1" LOW-LOW FLOWINCREASINGLESS THAN 0.011.15 PSILESS THAN 0.030.03 PSI
DECREASINGLESS THAN 0.011.1 PSILESS THAN 0.030.03 PSI
1-1/2" STDINCREASING3.440.7226.00.07
DECREASING3.400.7223.80.05
1-1/2" LOW FLOWINCREASING0.7561.2LESS THAN 1.00.78
DECREASING0.7551.2LESS THAN 1.00.67
1-1/2" LOW LOW FLOWINCREASING0.3141.7LESS THAN 1.01.1
DECREASING0.3131.7LESS THAN 1.00.93
2" STDINCREASING5.980.7 PSI35.40.07 PSI
DECREASING5.80.68 PSI32.80.07 PSI
2" LOW FLOWINCREASING0.761.2 PSILESS THAN 1.00.70 PSI
DECREASING0.751.2 PSILESS THAN 1.00.61 PSI
2" LOW-LOW FLOWINCREASING0.321.9 PSILESS THAN 1.00.94 PSI
DECREASING0.321.9 PSILESS THAN 1.00.86 PSI
PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP


Line Sizes from 3 to 6 inches. * Minimum Flow Rates Required For Actuation

PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP
3" (STD PADDLE)INCREASING8.8LESS THAN 0.0560.0LESS THAN 0.05
DECREASING8.2LESS THAN 0.0557.3LESS THAN 0.05
3" (OPT WIDE PADDLE)INCREASING7.2*LESS THAN 0.0520.0LESS THAN 0.05
DECREASING6.5LESS THAN 0.0516.8LESS THAN 0.05
4" (STD PADDLE)INCREASING21.0LESS THAN 0.0569.0LESS THAN 0.05
DECREASING19.5LESS THAN 0.0558.8LESS THAN 0.05
4" (OPT WIDE PADDLE)INCREASING11.8*LESS THAN 0.0520.1LESS THAN 0.05
DECREASING10.5LESS THAN 0.0514.5LESS THAN 0.05
6" (STD PADDLE)INCREASING36.5LESS THAN 0.05110.0LESS THAN 0.05
DECREASING33.0LESS THAN 0.0540.4LESS THAN 0.05
6" (OPT WIDE PADDLE)INCREASING25.5*LESS THAN 0.0569.0LESS THAN 0.05
DECREASING20.5LESS THAN 0.0558.9LESS THAN 0.05
PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP


Line Sizes from 8 to 12 inches. * Minimum Flow Rates Required For Actuation

PIPELINE SIZEFLOWGPM (H20)PRESS DROPSCFM (GN2)PRESS DROP
8" (STD PADDLE)INCREASING45.0LESS THAN 0.05140.0LESS THAN 0.05
DECREASING37.5LESS THAN 0.0580.2LESS THAN 0.05
8" (OPT WIDE PADDLE)INCREASING35.7*LESS THAN 0.0595.0LESS THAN 0.05
DECREASING27.4LESS THAN 0.0581.4LESS THAN 0.05
10" (STD PADDLE)INCREASING59.0LESS THAN 0.05159.8LESS THAN 0.05
DECREASING42.5LESS THAN 0.0594.2LESS THAN 0.05
10" (OPT WIDE PADDLE)INCREASING49.5*LESS THAN 0.05120.5LESS THAN 0.05
DECREASING35.0LESS THAN 0.0582.0LESS THAN 0.05
12" (STD PADDLE)INCREASING79.9LESS THAN 0.05170.5LESS THAN 0.05
DECREASING58.0LESS THAN 0.0598.9LESS THAN 0.05
12" (OPT WIDE PADDLE)INCREASING71.0*LESS THAN 0.05140.0LESS THAN 0.05
DECREASING49.0LESS THAN 0.0591.0LESS THAN 0.05
* For Lower Actuation Points Use Special Folding Paddle.


 

Velocity Recommendations
VELOCITYMODIFICATION REQUIRED
Under 7 FPSUse Standard Unit
7 - 10 FPSPaddle Shroud
Over 10 FPSHigh Flow Configuration
Velocity Correction Factors
SPECIFIC GRAVITYMULTIPLICATION FACTORSPECIFIC GRAVITYMULTIPLICATION FACTOR
.401.65.951.03
.451.551.001.00
.501.461.05.97
.551.391.10.95
.601.331.15.92
.651.271.20.90
.701.221.25.88
.751.171.30.86
.801.131.35.84
.851.101.40.82
.901.061.45.80