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Plastic Variable Area Flow Meters

Combining affordability with reliable flow measurement and control.

For many non-corrosive, low-pressure air, water and gas flow applications, it pays to use accurate instrumentation that provides highly repeatable results and is also durable and affordable. Key Instruments delivers that combination in our versatile line of plastic variable area oxygen flow meters. Durability is the result of precision-machined, one-piece, acrylic-body blocks that can handle demanding projects and mounting panels. Plus, configuration and customization options for scales, floats, fittings and control valves accommodate a variety of oxygen flow measurement applications, whether in the lab or the field.

KEY APPLICATIONS

  • Air sampling equipment aquaculture
  • Desalinization equipment
  • Gas analyzers
  • Medical systems
  • Photo processing equipment
  • Water treatment and distribution systems
  • OEM applications

Select the plastic variable area flow meter that best meets your project requirements.

PRODUCTS

Product Type

Machined Acrylic Flow Meter

Machined Acrylic Flow Meter

Molded Polycarbonate Flow Meter

Differentiator

Economical
QuickShip Available

Three Levels of Customization

Economical
QuickShip Available

Flow Range (Full Scale Capacity)

Water

4 – 3700 ccm
.2 – 60 gph
.25 – 20 gpm
1 – 75 lpm

Air

100 -1000 ccm
0.04 – 4000 lpm
.1 – 200 scfh
.5 – 100 scfm

Call for Information

Water

5 – 300 ccm
.2 – 40 gph

Air

.5 – 100 lpm
.1 – 200 scfh

Accuracy
2-5% FS
Call for Information
± 4% FS
Max Temperature

65oC (150oF)

Call for Information

65oC (150oF)

Max Pressure
100 psig
Call for Information
100 psig
Seal Material

Buna-N O-rings w/Brass fittings or PVC fittings;
Viton O-rings w/303 SS fittings

Call for Information

Buna-N w/Brass fittings;
Viton® fluoroelastomer w/SS fittings

Process Connection Material

Brass;
303 Stainless Steel;
PVC FNPT Pipe Connections (Std).

Brass;
303 Stainless Steel;
PVC FNPT Pipe Connections (Std).

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2500 Series

Product Type

Machined Acrylic Flow Meter

Differentiator

Economical
QuickShip Available

Flow Range (Full Scale Capacity)

Water

4 – 3700 ccm
.2 – 60 gph
.25 – 20 gpm
1 – 75 lpm

Air

100 -1000 ccm
0.04 – 4000 lpm
.1 – 200 scfh
.5 – 100 scfm

Accuracy
2-5% FS
Max Temperature

65oC (150oF)

Max Pressure
100 psig
Seal Material

Buna-N O-rings w/Brass fittings or PVC fittings;
Viton O-rings w/303 SS fittings

Process Connection Material

Brass;
303 Stainless Steel;
PVC FNPT Pipe Connections (Std).

2500 Custom Solutions

Product Type

Machined Acrylic Flow Meter

Differentiator
Three Levels of Customization
Flow Range (Full Scale Capacity)
Call for Information
Accuracy
Call for Information
Max Temperature
Call for Information
Max Pressure
Call for Information
Seal Material
Call for Information
Process Connection Material

Brass;
303 Stainless Steel;
PVC FNPT Pipe Connections (Std).

3000 Series

Product Type

Molded Polycarbonate Flow Meter

Differentiator

Economical
QuickShip Available

Flow Range (Full Scale Capacity)

Water

5 – 300 ccm
.2 – 40 gph

Air

.5 – 100 lpm
.1 – 200 scfh

Accuracy
± 4% FS
Max Temperature

65oC (150oF)

Max Pressure
100 psig
Seal Material

Buna-N w/Brass fittings;
Viton® fluoroelastomer w/SS fittings

Process Connection Material
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