Go to Autotest Division >Selection Chart
QuadraTherm® iSeries Mass Flow Meters
World's Most Accurate Air / Gas Mass Flow Measurements
Use the selection chart below to evaluate the various flow ranges that are applicable to the QuadraTherm 640i insertion probe version and QuadraTherm 780i inline flow body version. The ranges shown are optimal minimum/maximum ranges for air. Meters will read to zero flow with some decreasing accuracy. Flows shown are based on ANSI schedule 40 pipe and a maximum mass velocity of 60,000 SFPM 100:1 Turndown.
View Digital Communication Selection Chart
|
QuadraTherm® Mass Flow Meters for Gases
|
||
|---|---|---|
|
Greater than
8" |
>>> (Virtually Unlimited Max Flow Rate)
QuadraTherm 640i for High Performance Applications
  |
|
|
8"
|
208* scfm
 |
|
|
6"
|
120* scfm
|
|
|
4"
|
53* scfm
|
|
|
3"
|
31* scfm
|
|
|
2"
|
14* scfm
|
|
|
1.5"
|
8.5* scfm
|
|
|
1"
|
3.6* scfm
|
|
|
0.75"
|
2.1* scfm
|
|
|
0.5"
|
1.2* scfm
|
|
|
||
Graphs not to scale.
Note*
Ranges shown are optimal minimum/maximum ranges for air.
Meters will read to zero flow with decreasing accuracy.
Maximum mass velocity 60,000 sfpm
Flow rates based on ANSI schedule 40 pipe
100:1 turndown
Ranges shown are optimal minimum/maximum ranges for air.
Meters will read to zero flow with decreasing accuracy.
Maximum mass velocity 60,000 sfpm
Flow rates based on ANSI schedule 40 pipe
100:1 turndown
LOW FLOWS: Under 35 scfm (1000 slpm) Click Here