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. 65mm PTFE Encased Glass Tube Flow Meter with CV Utility Valve, 1/8" FNPT Adapter

    65mm PTFE Encased Glass Tube Flow Meter with CV Utility 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 a CV® Utility Valve Cartridge. CV® Valve Cartridges are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
  2. Encased Glass Tube In-Line Flow Meter with Valve, Brass 3/8" FNPT Adapter

    Encased Glass Tube In-Line Flow Meter with Valve, Brass 3/8" FNPT Adapter

    Incorporating traditional variable area precision glass technology, these rugged brass in-line 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.
  3. Encased Glass Tube In-Line Flow Meter with Valve, 316 Stainless Steel 3/8" FNPT Adapter

    Encased Glass Tube In-Line Flow Meter with Valve, 316 Stainless Steel 3/8" FNPT Adapter

    Incorporating traditional variable area precision glass technology, these rugged stainless steel in-line 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.
  4. Encased Glass Tube In-Line Flow Meter, PTFE, PTCFE 3/8" FNPT Adapter, Valve

    Encased Glass Tube In-Line Flow Meter, PTFE, PTCFE 3/8" FNPT Adapter, Valve

    Incorporating traditional variable area precision glass technology, these rugged PTFE in-line 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 option.
  5. Polysulfone In-Line Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, No Valve

    Polysulfone In-Line Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, No 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 is designed for inline 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).
  6. Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, No Valve

    Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 4" GPM/LPM Scales, No 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 is designed for panel mounting. With brass 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).
  7. Polysulfone In-Line Flow Meter with Brass Connections - Water, 4" GPM/LPM Scales, No Valve

    Polysulfone In-Line Flow Meter with Brass Connections - Water, 4" GPM/LPM Scales, No 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 is designed for inline mounting. With brass 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).
  8. Polysulfone High Volume In-Line Flow Meter with Polysulfone Connections - Water (GPM/LPM), Polycarbonate Shield

    Polysulfone High Volume In-Line Flow Meter with Polysulfone Connections - Water (GPM/LPM), Polycarbonate Shield

    The 6B0303-H2O is a high volume series of flow meters offering excellent accuracy and repeatability. Combined with a durable injection molded Polysulfone meter body and connections, this flow meter offers cost effective 316 SS internal parts and a polycarbonate shield. This flow meter is designed to be mounted inline. With a 1" FNPT connection, this line has a liquid flow range of 0.5 to 40 GPM (2 - 155 LPM). Half unions couple the meter body to the connectors at each end of the flow meter, facilitating both installation and maintenance.
  9. Polysulfone In-Line Flow Meter, Socket Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone In-Line Flow Meter, Socket Fusion PVDF Connections - Water (GPM/LPM)

    The 6B05 series flow meter's rib guided polysulfone contains no metal in the fluid path. This makes the flow meter desirable in highly corrosive environments or deionized water applications. The 6B0503-PVC is equipped with 1/2" or 3/4" Socket Fusion PVDF Adapters.
  10. Polysulfone High Volume In-Line Meter with 1" FNPT PVC Connections - Water (GPM/LPM)

    Polysulfone High Volume In-Line Meter with 1" FNPT PVC Connections - Water (GPM/LPM)

    The 6B06 series flow meter's rib guided polysulfone contains no metal in the fluid path. This makes the flow meter desirable in highly corrosive environments or deionized water applications. The 6B0600-PVC is equipped with 1" FNPT Adapters.
  11. Polysulfone High Volume In-Line Flow Meter with 1" Socket Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone High Volume In-Line Flow Meter with 1" Socket Fusion PVDF Connections - Water (GPM/LPM)

    The 6B06 series flow meter's rib guided polysulfone contains no metal in the fluid path. This makes the flow meter desirable in highly corrosive environments or deionized water applications. The 6B0603 is equipped with 1" Socket Fusion PVDF Adapters.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. Encased Glass Tube Panel Mount Flow Meter, Brass 3/8" FNPT Adapter, No Valve

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

    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. No Valve.
  17. 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.
  18. Encased Glass Tube Panel Mount Flow Meter with Valve, PTFE, PTCFE 3/8" FNPT Adapter, No Valve

    Encased Glass Tube Panel Mount Flow Meter with Valve, PTFE, PTCFE 3/8" FNPT Adapter, No Valve

    Incorporating traditional variable area precision glass technology, these rugged PTFE panel mount 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.

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