OMEGA Engineering, Inc. Datasheets for Rotameters

Rotameters are typically tapered glass tubes positioned vertically in the fluid flow. A float within the tube rides upward in relation to the amount of flow.
Rotameters: Learn more

Product Name Notes
Designed for direct read flow rates, the FLD Series rotameter is a precision instrument embodying the inherent simplicity, versatility and economy of the classical rotameter. It is particularly suitable for...
FL-1300 series rotameters are supplied with an easy-to-read 65 mm (2.6") scale. The FL1400 series features a large, easy-to-read 150 mm (5.9") scale, with correlation charts for air and water...
FL-5000 series rotameters are supplied standard with a 9-turn cartridge valve. Optionally available are units without a valve or with a 16-turn non-rising stem precision valve.
FL4000 OEM-style acrylic rotameters are precisely machined from rugged, solid acrylic blocks for superb durability. They are available in 50 mm, 75 mm, 127 mm, and 250 mm scale lengths...
FL7000 OEM-style rotameters are precisely machined from solid acrylic blocks. They are available in 50, 75, 100, 127, and 250 mm scale lengths (1.97, 2.96, 5, 3.94, and 9.85") and...
Incorporating traditional variable area precision glass technology, these rugged PTFE flow meters offer accurate and economical solutions to medium flow range measurements. FLD1000/FLD2000 are designed with unique rotatable scales of...
Made entirely of PTFE, PFA, and PCTFE, the Model FL-10 liquid flow meter is excellent for high-purity flow measurement applications or use with corrosive liquids. These flowmeters are available with...
OMEGA ® FL-1600 industrial flowmeters are designed for high accuracy industrial uses. They feature dowel-pin, side plate construction and externally adjustable packing glands for use in industrial piping systems.
OMEGA ® FL-75 flowmeters combine shatter resistant, non-glass construction and laboratory precision accuracy at an economical price.
OMEGA FL-1500 flow meters combine 2% accuracy and side plate construction at an economical price. These flowmeters feature glass and 316 stainless steel construction, with aluminum side plates and acrylic...
OMEGA’s multi-tube rotameters are convenient for applications where up to six streams of liquids or gases are to be metered in individual channels. Flow pattern B represents multiple inlets manifolded...
The 150 mm High/Low Alarm Flow Meter with Optical Sensor Switch is a noninvasive means for detection of a HI or LOW flow. This sensor is ideal for signaling an...
The FL-1200 flowmeters provide a low-cost means of flow rate indication. They are designed for applications where precise accuracy requirements for metering are not imperative. These meters are ideal for...
The FL-2000 Series offers a wide variety of precision flowmeters for use in medical, industrial, chemical, and laboratory applications at an economical price. Units are available with or without valves.
The FL-2500 Series direct read rotometer kits offer versatility at a low cost. Each kit includes seven interchangeable direct read scales for air, water, Argon, CO2, Helium, Nitrogen and Oxygen.
The FL-3000 and FL-3100 Series flowmeters are designed for applications which involve corrosive or ultra-pure fluids. The meters are equipped with built-in PTFE needle valves with Kel-F, borosilicate glass, sapphire,...
The FL46300 Series of liquid in-line flow meters offer individual, handmade quality, combined with excellent accuracy and repeatability. These flowmeters are machined of high quality acrylic rod stock, carefully polished...
The FLD100 Heavy-duty flowmeters are fully enclosed in a brushed stainless steel case. Ideal for industrial applications with flow rates up to 116 GPM and 250 SCFM. Used with industrial...
The OMEGA® precision variable-area rotameters for air, water, and gases have up to ±2% of full scale accuracy and 0.25% of full scale repeatability. These units feature an easy-to-read millimeter...
The OMEGA® precision variablearea rotameters can measure flows of air, water, and gases, with up to ±2% FS accuracy and 0.25% FS repeatability. These units feature an easy-to-read millimeter scale...
This rugged direct-reading flowmeter monitors air flowrates to determine optimum performance, flow regulator settings, or pneumatic system performance. It is intended for use in mobile or industrial pneumatic systems as...
To blend two or three gases in homogeneous infinitely variable concentrations, directly at the end use point, these rotameters are unsurpassed in convenience and economy. Gas proportioning rotameters pay for...
• NIST Calibration Available • Union Ends to Simplify Installation and Maintenance • Chemical- and Break-Resistant Metering Tube • See-Through, Detachable Direct Reading Scale (GPM Water) • Vertical In-Line Connections...
• Shielded for pressurized systems • Panel mounting design • Non-rising stem needle valve • Compact, 65mm scale • Easy-to-read 150mm scale