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GAS PROPORTIONING VARIABLE
AREA FLOW METER
Back Pressure Compensated
FL-1GP Series
Optional
±2% Full Scale Accuracy
Back Pressure
Compensated for
Accurate Blending—Up
to 50 psi Only
Blend Up to Three Gases
Save on Cost of Custom
Gas Mixtures
Vary Concentrations with
Operating System
For Use with 150 mm
Flow Tubes
Bench Mount Tripod
Base Optional
Standard 6-Turn Valves
or Precision 16-Turn
Valves Available
To blend two or three gases in
homogeneous infinitely variable
concentrations, directly at the end
use point, these variable area flow
meter are unsurpassed in
convenience and economy. Gas
proportioning variable area flow meter
pay for themselves in a short period
of time since their use eliminates the
need for expensive custom blended
gas mixtures from outside sources.
This series of variable area flow
meter lend flexibility and economy to
the efficient utilization of component
gas cylinders and piped in supply
lines. Another significant advantage
in laboratory use is the freedom to
reproducibly increase or decrease
concentrations during the course of
an experiment.
The flowrates of component gases
are not affected by downstream
pressure variations as long as back
pressures do not exceed or approach
the input pressure.
SPECIFICATIONS
Accuracy: ±2% full scale, from
10% to 100% of scale
Repeatability: ±0.25% full scale
Maximum Pressure: 200 psig
Maximum Temperature: 250°F
(180°F for water)
Flow Tube: Borosilicate glass
End Fittings: Black and anodized
aluminum or 316 SS
Packing and O-Rings:
Buna in aluminum models, FKM
316 SS models
Side Panels: Black anodized aluminum
Connections:
To Order
For Two Tubes
Model No. Valve Type End Fittings
FL-1GP-(*)-(*) Standard Aluminum
FL-2GP-(*)-(*) Precision Aluminum
FL-3GP-(*)-(*) Standard 316 SS
FL-4GP-(*)-(*) Precision 316 SS
For Three Tubes
FL-5GP-(*)-(*)-(*) Standard Aluminum
FL-6GP-(*)-(*)-(*) Precision Aluminum
FL-7GP-(*)-(*)-(*) Standard 316 SS
FL-8GP-(*)-(*)-(*) Precision 316 SS
Comes complete with air correlation sheet for each tube and operator’s manual.
Select the desired 150 mm flow tube from those listed online. Delete the
*
FLT-prefix and insert the remaining suffix from the flow tube into the model numbers above.
For NIST calibration, add suffix “-NIST AIR” or “-NIST WATER” to model number,
for additional cost.
Ordering Example: FL-5GP-61G-41SA-03C calls out a 3 tube gas proportioner with standard
valves and aluminum end fittings with tubes FLT-61G, FLT-41SA and FLT-03C installed.
B-33
Shown smaller than actual size.
-A in
1
⁄8 FNPT
CUSTOM BUILT TO ORDER!
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