Badger Meter Hedland PE, User Manual, Page: 16 / 24

Flow vs Pressure Drop
1 . The pressure drop curves are valid for fluids with density and viscosity similar to factory test fluids . Fluids, especially with
higher viscosity than these test fluids, will yield a higher pressure drop through the flow meter and piping system per a
given flow volume .
2 . A system must have adequate fluidic horsepower available to move the system fluid at a prescribed rate at a pressure
adequate to overcome all pressure reducing devices, including the flow meter .
Petroleum Fluids
3/4"/1" Reverse Flow
0.2-2.0
0.5-5.0
1-10
2-20
3-30
4-40
1/4"
.20-2.0
.10-1.0
.05-.50
.02-.20
FLOW, GPM
PRESSURE DR
OP
, PSI
FLOW, GPM
PRESSURE DR
OP
, PSI
1-1/4"/1-1/2" Reverse Flow
3-30
5-50
10-75
10-100
10-150
FLOW, GPM
PRESSURE DR
OP
, PSI
3.0"
20-300
10-200
FLOW, GPM
PRESSURE DR
OP
, PSI
1-1/4"/1-1/2"
10-150
10-100
10-75
5-50
3-30
FLOW, GPM
PRESSURE DR
OP
, PSI
1/2"
1-15
1-10
0.5-5.0
0.2-2.0
0.1-1.0
FLOW, GPM
PRESSURE DR
OP
, PSI
FLOW, GPM
PRESSURE DR
OP
, PSI
3/4"/ 1"
5-50
4-40
3-30
2-20
1/2" Reverse Flow
0.1-1.0
0.5-5.0
0.2-2.0
1-10
1-15
FLOW, GPM
PRESSURE DR
OP
, PSI
0.2-2.0
0
5
10
0 10
1-10
0.5-5.0
Petroleum Test Kits
3/4" / 1"
4-40
4-40
5-50
3-30
2-20
1-10
1-10
2-20
3-30
0.5-5.0
0.2-2.0
0.2-2.0
0.5-5.0
FLOW, GPM
PRESSURE DR
OP
, PSI
Standard Test Kit
Reverse Flow
1/2"
1-15
1-15
1-10
1-10
0.5-5.0
0.5-5.0
0.2-2.0
0.2-2.0
0.1-1.0
0.1-1.0
FLOW, GPM
PRESSURE DR
OP
, PSI
Standard Test Kit
Reverse Flow
1-1/4"/ 1-1/2"
10-150
10-150
10-100
10-100
10-75
5-50
5-50
3-30
3-30
10-75
FLOW, GPM
PRESSURE DR
OP
, PSI
Standard
Test Kit
Reverse Flow
Application Information
Page 16 September 2014 VAM-UM-00551-EN-03
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