Acrylic Rotameters

Dakota Instruments’ Acrylic Meters offer solid, one-piece meters with a clear-as-glass finish, English or Metric scales, good accuracy and repeatability, and economical prices. Designed to measure routine gases, these meters are equipped with interchangeable easy-to-read scales. Models are equipped with a yellow colored backing or white back reflector to enhance readability and help minimize eye fatigue.

Features include:

  • Easy disassembly and assembly for cleaning
  • Panel mounting by means of hex nuts
  • Models with or without built-in low hysteresis needle valves
  • User-convertible panel to partial or full in-line mounted configurations
  • Stable, easy-to-read float
  • Superior quality
  • ±5 % of full scale reading
  • Optional kits with direct reading scales displaying air, water, argon, nitrogen, helium, carbon dioxide, and oxygen in both English and metric units

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  1. Water Flow Meter - Acrylic, Brass Fittings

    Water Flow Meter - Acrylic, Brass Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Water flow values. Viton Seals, 1/8" FNPT and Brass End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 20 mL/min (0.3 GPH) to 1400 mL/min (22 GPH).
  2. Air Flow Meter - Acrylic, Brass Fittings

    Air Flow Meter - Acrylic, Brass Fittings

    Available for multiple flow rates, this Acrylic Flow meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton Seals, 1/8" FNPT and Brass End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass).
  3. Nitrogen Flow Meter - Acrylic, Brass Fittings

    Nitrogen Flow Meter - Acrylic, Brass Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton Seals, 1/8" FNPT and Brass End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 1.3 LPM (2.75 SCFH) to 45 LPM (100 SCFH).
  4. Carbon Dioxide Flow Meter - Acrylic, Brass Fittings

    Carbon Dioxide Flow Meter - Acrylic, Brass Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Carbon Dioxide flow values. Viton Seals, 1/8" FNPT and Brass End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 1.1 LPM (2.5 SCFH) to 35 LPM (80 SCFH).
  5. Air Flow Meter - Acrylic, Stainless Fittings

    Air Flow Meter - Acrylic, Stainless Fittings

    Available for multiple flow rates, this Acrylic Flow meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton Seals, 1/8" FNPT and Stainless Steel End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass).
  6. Water Flow Meter - Acrylic, Stainless Fittings

    Water Flow Meter - Acrylic, Stainless Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Water flow values. Viton Seals, 1/8" FNPT and Stainless Steel End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 20 mL/min (0.3 GPH) to 1400 mL/min (22 GPH).
  7. Carbon Dioxide Flow Meter - Acrylic, Stainless Fittings

    Carbon Dioxide Flow Meter - Acrylic, Stainless Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Carbon Dioxide flow values. Viton Seals, 1/8" FNPT and Brass End fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 1.1 LPM (2.5 SCFH) to 35 LPM (80 SCFH).
  8. Nitrogen Flow Meter - Acrylic, Stainless Fittings

    Nitrogen Flow Meter - Acrylic, Stainless Fittings

    Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton Seals, 1/8" FNPT and Stainless Steel fittings are standard. The float material varies based on the metering range (316 SS, Carboloy, Glass). Available for metering flow rates from 1.3 LPM (2.75 SCFH) to 45 LPM (100 SCFH)
  9. Nitrogen Flow Meters - Acrylic, Brass Fittings, No Valve

    Nitrogen Flow Meters - Acrylic, Brass Fittings, No Valve

    This Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 575 LPM (21 SCFM). No Valve.
  10. Air Flow Meters- Acrylic, Brass Fittings, No Valve

    Air Flow Meters- Acrylic, Brass Fittings, No Valve

    This Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 550 LPM (20 SCFM). No Valve.
  11. Air Flow Meters - Acrylic, Brass Fittings, Valve Included

    Air Flow Meters - Acrylic, Brass Fittings, Valve Included

    This Acrylic Flow Meter with Valve has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 550 LPM (20 SCFM).
  12. Carbon Dioxide Flow Meters - Acrylic, Brass Fittings, No Valve

    Carbon Dioxide Flow Meters - Acrylic, Brass Fittings, No Valve

    This Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Carbon Dioxide (CO2) flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 475 LPM (17 SCFM). No Valve.
  13. Nitrogen Flow Meters - Acrylic, Brass Fittings, Valve Included

    Nitrogen Flow Meters - Acrylic, Brass Fittings, Valve Included

    This Acrylic Flow Meter with Valve has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 575 LPM (21 SCFM).
  14. Air Flow Meters - Acrylic, Polypropylene Fittings, No Valve

    Air Flow Meters - Acrylic, Polypropylene Fittings, No Valve

    This Acrylic Flowmeter has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton® Seals, 3/4" FNPT and Polypropylene End fittings are standard. The float/guide material is 316 Stainless Steel. This Flowmeter is designed for inline mounting and can handle a Maximum Flow Rate of 2100 LPM (72.5 SCFM). No Valve.
  15. Nitrogen (N2) Flow Meters - Acrylic, Polypropylene Fittings, No Valve

    Nitrogen (N2) Flow Meters - Acrylic, Polypropylene Fittings, No Valve

    This Acrylic Flowmeter has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton® Seals, 3/4" FNPT and Polypropylene End fittings are standard. The float/guide material is 316 Stainless Steel. This Flowmeter is designed for inline mounting and can handle a Maximum Flow Rate of 2200 LPM (77.5 SCFM). No Valve.
  16. Nitrogen (N2) Flow Meters - Acrylic, Polypropylene Fittings, Valve Included

    Nitrogen (N2) Flow Meters - Acrylic, Polypropylene Fittings, Valve Included

    This Acrylic Flowmeter with Valve has a Dual Direct Reading Scale with yellow backing for easy viewing of Nitrogen flow values. Viton® Seals, 3/4" FNPT and Polypropylene End fittings are standard. The float/guide material is 316 Stainless Steel. This Flowmeter is designed for inline mounting and can handle a Maximum Flow Rate of 2200 LPM (77.5 SCFM).
  17. Carbon Dioxide Flow Meters - Acrylic, Brass Fittings, Valve Included

    Carbon Dioxide Flow Meters - Acrylic, Brass Fittings, Valve Included

    This Acrylic Flow Meter with Valve has a Dual Direct Reading Scale with yellow backing for easy viewing of Carbon Dioxide (CO2) flow values. Viton® Seals, 3/8" FNPT and Brass End fittings are standard. The float/guide material is 316 Stainless Steel. This Flow Meter is designed for panel mounting and can handle a Maximum Flow Rate of 475LPM (17 SCFM).
  18. Air Flow Meters - Acrylic, Polypropylene Fittings, Valve Included

    Air Flow Meters - Acrylic, Polypropylene Fittings, Valve Included

    This Acrylic Flowmeter with Valve has a Dual Direct Reading Scale with yellow backing for easy viewing of Air flow values. Viton® Seals, 3/4" FNPT and Polypropylene End fittings are standard. The float/guide material is 316 Stainless Steel. This Flowmeter is designed for inline mounting and can handle a Maximum Flow Rate of 2100 LPM (72.5 SCFM).

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