Rotameters

Rotameters, also known as variable area flow meters, are ideal for measuring the flow rates of a variety of liquid and gas applications.

  • No electrical connections
  • Easy to read direct reading scales
  • Large selection of flow rates and configurations to accommodate the unique requirements of most application.
  • Low maintenance

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  1. Encased Glass Tube Panel Mount Flow Meter, 316 Stainless Steel 3/8" FNPT Adapter, No Valve

    Encased Glass Tube Panel Mount Flow Meter, 316 Stainless Steel 3/8" FNPT Adapter, No Valve

    Incorporating traditional variable area precision glass technology, these rugged stainless steel panel mounted flow meters offer accurate and economical solutions to medium flow range measurements. These meters are designed with unique rotatable scales of dual air-water direct reading graduations showing SCFM and SLPM (air), as well as GPM and LPM (water) markings. No Valve.
  2. 65mm Stainless Steel Flow Meter with High Precision Valve (MFV)

    65mm Stainless Steel Flow Meter with High Precision Valve (MFV)

    Designed for low flow rates, these 65mm Single Tube Brass Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a High Precision MFV Metering Valve. MFV Valves are ideal for adjusting flow rates whenever high sensitivity control and resolution are desirable, particularly in conjunction with metering tubes of very low flow rates.
  3. 65mm Brass Flow Meter with High Precision Valve (MFV)

    65mm Brass Flow Meter with High Precision Valve (MFV)

    Designed for low flow rates, these 65mm Single Tube Brass Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a High Precision MFV Metering Valve. MFV Valves are ideal for adjusting flow rates whenever high sensitivity control and resolution are desirable, particularly in conjunction with metering tubes of very low flow rates.
  4. 65mm Aluminum Flow Meter with High Precision Valve (MFV)

    65mm Aluminum Flow Meter with High Precision Valve (MFV)

    Designed for low flow rates, these 65mm Single Tube Aluminum Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a High Precision MFV Metering Valve. MFV Valves are ideal for adjusting flow rates whenever high sensitivity control and resolution are desirable, particularly in conjunction with metering tubes of very low flow rates.
  5. Polysulfone High Volume In-Line Flow Meter - Water (GPM/LPM), No Valve

    Polysulfone High Volume In-Line Flow Meter - Water (GPM/LPM), No Valve

    For high volume flow measurements at low pressure losses, injection molded Hi-low “In-line” flow meters offers features of glass and metal flow meters at a fraction of their cost. These uniquely designed flow meters incorporate 2" FNPT connections, convenient "half unions" that couple the meter body to the connections, #316 stainless steel internal parts and Viton® O-rings. Hi-Flow flow meters render excellent accuracies and repeatability and are virtually maintenance free.
  6. 65mm PTFE Encased Glass Tube Flow Meter with MFV High Precision Valve, 1/8" FNPT Adapter

    65mm PTFE Encased Glass Tube Flow Meter with MFV High Precision Valve, 1/8" FNPT Adapter

    These rugged 65mm PTFE-Glass Flow Meters offer solutions to low to medium flow range measurements of highly corrosive or ultra-pure liquids and gases. Wetted inert components are surrounded by structurally rigid anodized aluminum. The resultant design represents a unique combination of a rugged mechanically rigid frame and chemically inert wetted parts. This rotameter comes with an MFV® High Precision Valve for high sensitivity control and resolution.
  7. 150mm PTFE Encased Glass Tube Flow Meter, 1/8" FNPT Adapter, No Valve

    150mm PTFE Encased Glass Tube Flow Meter, 1/8" FNPT Adapter, No Valve

    These rugged 150mm PTFE-Glass Flow Meters offer solutions to low to medium flow range measurements of highly corrosive or ultra-pure liquids and gases. Wetted inert components are surrounded by structurally rigid anodized aluminum. The resultant design represents a unique combination of a rugged mechanically rigid frame and chemically inert wetted parts. No Valve.
  8. Encased Glass Tube Panel Mount Flow Meter with Valve, 316 Stainless Steel 3/8" FNPT Adapter

    Encased Glass Tube Panel Mount Flow Meter with Valve, 316 Stainless Steel 3/8" FNPT Adapter

    Incorporating traditional variable area precision glass technology, these rugged stainless steel panel mounted flow meters offer accurate and economical solutions to medium flow range measurements. These meters are designed with unique rotatable scales of dual air-water direct reading graduations showing SCFM and SLPM (air), as well as GPM and LPM (water) markings. Valve included.
  9. 150mm Aluminum Flow Meter, No Valve

    150mm Aluminum Flow Meter, No Valve

    Designed for low flow rates, these 150mm Single Tube Aluminum Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. No Valve.
  10. 150mm Stainless Steel Flow Meter, No Valve

    150mm Stainless Steel Flow Meter, No Valve

    Designed for low flow rates, these 150mm Single Tube Stainless Steel Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. No Valve.
  11. Encased Glass Tube Panel Mount Flow Meter with Valve, PTFE, PTCFE 3/8" FNPT Adapter, Valve

    Encased Glass Tube Panel Mount Flow Meter with Valve, PTFE, PTCFE 3/8" FNPT Adapter, Valve

    Incorporating traditional variable area precision glass technology, these rugged PTFE panel mounted flow meters offer accurate and economical solutions to medium flow range measurements. These meters are designed with unique rotatable scales of dual air-water direct reading graduations showing SCFM and SLPM (air), as well as GPM and LPM (water) markings. Valve included.
  12. Encased Glass Tube Panel Mount Flow Meter with Valve, Brass 3/8" FNPT Adapter

    Encased Glass Tube Panel Mount Flow Meter with Valve, Brass 3/8" FNPT Adapter

    Incorporating traditional variable area precision glass technology, these rugged brass panel mounted flow meters offer accurate and economical solutions to medium flow range measurements. These meters are designed with unique rotatable scales of dual air-water direct reading graduations showing SCFM and SLPM (air), as well as GPM and LPM (water) markings. Valve included.
  13. 150mm Brass Flow Meter, No Valve

    150mm Brass Flow Meter, No Valve

    Designed for low flow rates, these 150mm Single Tube Brass Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. No Valve.
  14. Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, Adjustable Needle Valve

    Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, Adjustable Needle Valve

    The 6B02 series flow meters offer a tough injection molded Polysulfone meter body, corrosion and wear resistant internal parts, easy to read silk screened scales, good accuracy and repeatability and an excellent price! This flow meter has an adjustable valve and is designed for panel mounting. With connections of 3/8"or 1/2" MNPT/FNPT, the 6B02 line has a liquid flow range of 0.1 GPM to 10 GPM (0.4 LPM to 40 LPM).
  15. 150mm Aluminum Flow Meter with CV Valve

    150mm Aluminum Flow Meter with CV Valve

    Designed for low flow rates, these 150mm Single Tube Aluminum Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a CV Valve. CV Valves are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
  16. 150mm Brass Flow Meter with CV Valve

    150mm Brass Flow Meter with CV Valve

    Designed for low flow rates, these 150mm Single Tube Brass Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a CV Valve. CV Valves are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
  17. 150mm Stainless Steel Flow Meter with CV Valve

    150mm Stainless Steel Flow Meter with CV Valve

    Designed for low flow rates, these 150mm Single Tube Brass Flow Meters are precision instruments embodying the inherent simplicity, versatility and economy of the classical variable area meter. They are particularly suitable for metering carrier gases in chromatography, in manufacturing processes, liquid and gas measurements in laboratories, pilot plants, flow and level indicating and controlling gases. This rotameter comes with a CV Valve. CV Valves are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
  18. 150mm PTFE Encased Glass Tube Flow Meter with CV Utility Valve, 1/8" FNPT Adapter

    150mm PTFE Encased Glass Tube Flow Meter with CV Utility Valve, 1/8" FNPT Adapter

    These rugged 150mm PTFE-Glass Flow Meters offer solutions to low to medium flow range measurements of highly corrosive or ultra-pure liquids and gases. Wetted inert components are surrounded by structurally rigid anodized aluminum. The resultant design represents a unique combination of a rugged mechanically rigid frame and chemically inert wetted parts. This rotameter comes with a CV Utility Valve Cartridge. CV® Valve Cartridges are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.

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