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. Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 2" GPM/LPM or GPH/LPH Scales, Adjustable Needle Valve

    Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 2" GPM/LPM or GPH/LPH Scales, Adjustable Needle Valve

    These compact, durable flow meter units are injection molded of heat and chemical resistant Polysulfone. They feature curved Quik Loc (half union) connectors that easily couple the meter body to the pipe connectors at each end of the flow meter. Designed to be Panel Mounted.

    With connections of 3/8" MNPT or 1/2" MNPT, the 6B0102 has a fluid flow range of 0.025 GPM to 10 GPM.
  2. Polysulfone High Volume In-Line Flow Meter with 1 1/2" PVC Connections - Water (GPM/LPM), Polycarbonate Shield

    Polysulfone High Volume In-Line Flow Meter with 1 1/2" PVC Connections - Water (GPM/LPM), Polycarbonate Shield

    The 6B03 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. This flow meter is designed for inline mounting. With connections of 1"or 1.5" FNPT, 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.
  3. 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.
  4. Polysulfone High Volume In-Line Flow Meter with 2" Socket Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone High Volume In-Line Flow Meter with 2" Socket Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone Flow Meters are designed with chemical and heat resistant one-piece injection-molded polysulfone. Built compact for tight installation spaces, the tough meter body resists high temperatures and pressures. In- line or panel mount configurations are available. Units feature Quik Loc (half union) connectors. that couple the meter to the pipe connectors at each end of the flow meter. For panel mounting, simply drill two holes in your panel, insert the meter fittings through the holes and secure with lock nuts. Rotate for easy reading.

  5. 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

    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. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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).
  14. Polysulfone High Volume In-Line Flow Meter with 63mm Butt Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone High Volume In-Line Flow Meter with 63mm Butt Fusion PVDF Connections - Water (GPM/LPM)

    Polysulfone Flow Meters are designed with chemical and heat resistant one-piece injection-molded polysulfone. Built compact for tight installation spaces, the tough meter body resists high temperatures and pressures. In- line or panel mount configurations are available. Units feature Quik Loc (half union) connectors. that couple the meter to the pipe connectors at each end of the flow meter. For panel mounting, simply drill two holes in your panel, insert the meter fittings through the holes and secure with lock nuts. Rotate for easy reading.

  15. Polysulfone High Volume In-Line Flow Meter with 2" FNPT Polypropylene Connections, PVC Union Nut - Water (GPM/LPM)

    Polysulfone High Volume In-Line Flow Meter with 2" FNPT Polypropylene Connections, PVC Union Nut - Water (GPM/LPM)

    Polysulfone Flow Meters are designed with chemical and heat resistant one-piece injection-molded polysulfone. Built compact for tight installation spaces, the tough meter body resists high temperatures and pressures. In- line or panel mount configurations are available. Units feature Quik Loc (half union) connectors. that couple the meter to the pipe connectors at each end of the flow meter. For panel mounting, simply drill two holes in your panel, insert the meter fittings through the holes and secure with lock nuts. Rotate for easy reading.

  16. 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.
  17. 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.
  18. 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.

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