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Encased Glass Tube Rotameters (Aluminum, Brass, 316 SS, PTFE-PFA)

Encased Glass Tube Rotameters (Aluminum, Brass, 316 SS, PTFE-PFA)

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Dakota Instruments' Encased Glass Flow Meters exemplify traditional variable area precision glass technology of classical rotameters. Rib-guided or fluted glass flow tubes are available for low, medium, and high flow capacities. Shipped completely assembled, rugged frames are 316 stainless steel, brass, aluminum, or PFA coated. A thick protective front shield and back plate, and optional built-in control valve for most models allow a wide range of applications. Units are particularly suitable for indicating and controlling gases in manufacturing processes, metering carrier gases, and liquid and gas measurement in level indicating, laboratories, and pilot plants.

Economical encased glass tube rotameters for reliable low, medium, and high flow capacities
Rib-guided or fluted glass tubes facilitate stable, accurate readings
OPTIGRAD™ scales minimize parallax and eye fatigue
Magnifier lens in front shield enhances reading resolution
Rigid construction
Optional built-in Utility or high resolution Precision needle valve

Industrial Stainless Steel In-Line Flow Meter, NPT Connector, No Valve (M Meter)

Heavy-duty flow meters are fully enclosed in a brushed stainless steel case. Ideal for industrial applications with flow rates of up to 116 GPM / 440 L/min and 250 SCFM / 7080 L/min. Used for flow measurements of liquids (water) and gases (air.) Meters are graduated for direct reading of water and air. Wetted parts include borosilicate glass flow tubes, Viton™ O-rings and 316 Stainless Steel fittings, guide rods and float stops. These flow meters come with FNPT end fittings.
Industrial Stainless Steel Flanged Flow Meter, Flange Connector, No Valve (M Meter)

Heavy-duty flow meters are fully enclosed in a brushed stainless steel case. Ideal for industrial applications with flow rates of up to 116 GPM / 440 L/min and 250 SCFM / 7080 L/min. Used for flow measurements of liquids (water) and gases (air.) Meters are graduated for direct reading of water and air. Wetted parts include borosilicate glass flow tubes, Viton^® O-rings and 316 Stainless Steel fittings, guide rods and float stops. These flow meters come with flanged end fittings for easy in-line installation.
65mm Stainless Steel Flow Meter, No Valve

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. No Valve.
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.
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.
65mm PTFE Encased Glass Tube Flow Meter, 1/8" FNPT Adapter, No Valve

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. No Valve.
Encased Glass Tube In-Line Flow Meter, Brass 3/8" FNPT Adapter, No Valve

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. No Valve.
Encased Glass Tube In-Line Flow Meter, 316 Stainless Steel 3/8" FNPT Adapter, No Valve

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. No Valve.
Encased Glass Tube In-Line Flow Meter, PTFE, PTCFE 3/8" FNPT Adapter, No 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. No Valve.
65mm Brass Flow Meter, No Valve

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. No Valve.
65mm Aluminum Flow Meter, No Valve

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. 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.
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.
150mm PTFE Encased Glass Tube Flow Meter with MFV High Precision 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 an MFV® High Precision Valve for high sensitivity control and resolution.
65mm Aluminum Flow Meter with CV Valve

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 CV Valve. CV Valves are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
65mm Stainless Steel Flow Meter with CV Valve

Designed for low flow rates, these 65mm 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. 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.
65mm Brass Flow Meter with CV Valve

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 CV Valve. CV Valves are designed for adjusting flow rates in applications where high resolution metering regulation is not essential.
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.