AW-Lake flow meters and sensors for industrial control.
AW-Lake flow measurement devices from the Products collection, including digital transmitter and flow meters.
Gear Meters
Gear meters specifically spur gear, are ideal for low flow rates, viscous fluids, and measurement of flows involving starts and stops or pulsing.
AW-Lake industrial flow meters and gauges with gauges and connectors.
Meters, valves, and sensor assemblies for fluid handling.
Variable Area Meters
Variable Area flow meters are a type of rotameter that measure oils, liquids or gases by relating linear displacement of an internal “float” or sharp-edged orifice plate to a corresponding flow rate.
Advanced flow meters with digital displays for precise liquid measurement.
High-accuracy flow meters with digital readouts designed for industrial fluid measurement.
Coriolis Mass Flow Meters
TRICOR Coriolis flow meters are highly accurate and repeatable multi-variable instruments that measure mass flow, density, and temperature with calculated volumetric flow and feature a very easy user interface.
AW-Lake pressure sensor with yellow protective cap and electrical wiring.
Industrial pressure sensor assembly from AW-Lake featuring seal kit and protective yellow cap.
Paddle Wheel Flow Meter
Operating much like a turbine flow meter, the paddle wheel flow meter consists of a freely rotating wheel which is outfitted with magnets on the blades or “paddles” of the wheel.
AW-Lake hydraulic valve and sensor assembly for industrial applications.
AW-Lake precision hydraulic components including valve assemblies and a digital display unit for industrial monitoring.
Helical Flow Meters
Helical gear ("screw-type") flow meters are designed for measuring highly viscous, abrasive, and filled fluids including lubricating and non-lubricating media, such as polyurethane, polymers, greases and oils.
AW-Lake industrial valve and sensor assembly with blue body and digital readout.
AW-Lake valve components including stainless valve bodies and RT-50 control display.
Turbine Flow Meters
Axial turbine flow meters are designed with wear resistant internal components to provide trouble-free operation and a long service life in a wide variety of industrial applications.
AW-Lake ultrasonic flow meter on pipe with sensors.
AW-Lake ultrasonic flow meter system installed on a pipeline for accurate flow measurement.
Ultrasonic Flow Meters
Non-contact ultrasonic flow meters for accurate, instantaneous mass & volumetric flow rate measurement of clean, non-aerated fluids in full pipes such as water, chemicals, and oils.
AW-Lake flow meters and sensors display for industrial automation.
AW-Lake flow meters and controls featured for industrial process monitoring and measurement.
Flow Electronics
Electronics coupled with our mechanical flow meters deliver flow data in your preferred format, whether a local display, remote transmitter, or simple pickup.
AW-Lake flow transmitters with digital displays in green, blue, and red.
AW-Lake flow transmitters showcase three meters with colored digital readouts for precise flow measurement.
Rotary Piston
Rotary Piston positive displacement flow meters are ideal for use in applications with very low flow rates and high pressures, such as offshore chemical injection applications.
AW-Lake ProScan 2.0 sensor with label and stainless steel body.
ProScan 2.0 sensor from AW-Lake for flow or level sensing in industrial applications.
Turbidity Sensor
AW-Lake's ProScan Turbidity Sensor is ideal for detection of material transitions, monitoring turbidity, and measuring product concentration, such as in dairy processing, juice processing, and brewing operations.
Industrial hydraulic machine with green frame and black rollers in a factory.
Fluid Power / Hydraulics
Flow meters used to monitor flow readings in fluid power systems are essential to properly monitoring your process, diagnosing system errors, and ensuring system performance. Our expertise in this area goes back decades with numerous flow meters for the hydraulics and fluid power system industry.
AW-Lake offshore drilling rig in blue ocean under a cloudy sky.
Oil & Gas
From corrosive subsea environments, offshore production platforms, onshore oil fields, or refineries we have the flow expertise to tackle these tough jobs. Difficult oil and gas flow metering challenges like high pressures, pulsating flows, corrosive media and harsh environments are our daily business.
Excavator at a quarry with bucket scoop on rocky ground.
Heavy Industrial
For challenging industrial environments like mining, steel & paper mills, and industrial vehicles we offer flow meters with easy flow paths to run thick materials, rugged meter bodies that handle extreme conditions and designs with high shock and vibration resistance.
Car body on an assembly line with robotic arms spraying coating.
Paints/Sealants/Adhesives
Automotive plants and their Tier-1 suppliers have been using AW-Lake flow meters for 40+ years to monitor usage of paints, coatings, adhesives, lubricants, and other fluids to maintain strict process control and manage operational costs. Flow meters in these areas must be capable of measuring a wide range of materials.
Industrial AW-Lake water cooling machinery with yellow frame and connected controls.
Water Cooling
Monitoring process cooling systems, including industrial cooling circuits and HVAC systems, helps maintain your plant or building efficiency, conserve energy, and improve the bottom line. Constant monitoring and control of these systems can easily be done using flow monitoring and control instrumentation from AW-Lake.
Industrial factory interior with steel framework and overhead crane.
General Industrial
General industrial plants around the world have been using AW-Lake flow meters to maintain their process operations, plus they have integrated our meters as a vital part of their end product. Our broad portfolio of flow measurement equipment provides solutions to your paint operations.
AW-Lake test system in laboratory with operator seated.
Test Systems
With increasing product complexity, tighter regulations, and growing demands on companies to reduce operating costs and improve product quality, there is more focus on test and measurement procedures and equipment.
Electric vehicle charging station at AW-Lake site with blue panel.
Alternative Energy
As the world shifts towards sustainable practices, the demand for efficient energy production methods intensifies. AW-Lake flow meters are used in many ways within renewable energy sectors such as solar, wind, hydro, and biofuels.
AW-Lake tug boat on calm water with shoreline.
Marine
In a field where fuel consumption attributes to most of the total operating costs, it is critical for marine ship owners and operators to monitor their fuel systems. Accurate fuel consumption is key to understanding how and where to find areas to improve efficiency and control costs.
Industrial facility with towers and smokestack at sunset.
Chemical
AW-Lake understands the challenges and intricacies of chemical / petrochemical process monitoring with flow meters. We have the depth of experience with corrosive, aggressive liquids and gases that you need in your flow measurement partner.
Blue plastic pellets being handled in a recycling facility.
Environmental
As the the world continues to examine ways to lesson our impact on the environment and develop new technologies to support those efforts, flow measurement enters the conversation more and more.
Aircraft maintenance in aerospace industry.
Aerospace
AW-Lake flow meters are trusted in the aerospace and aviation industry, where they ensure precise measurement and control of fuel, hydraulic fluids, and other critical liquids and gases. They play a vital role in maintaining optimal performance, ensuring safety, and enhancing fuel efficiency.
AW-Lake variable area flow meter in stainless steel and brass.
AW-Lake variable area flow meters shown in different sizes for precise flow measurement.
Basic Variable Area Aluminum ports
AW-Lake flow meter displaying GPM and LPM scales with vertical indicator for variable area flow measurement.
Basic Variable Area Brass ports
AW-Lake variable area flow meter for precise flow measurement in industrial systems.
Basic Variable Area stainless steel ports
AW-Lake variable area flow meter with stainless body and clear scale for GPM and LPM readings; ideal for precise flow measurement in industrial piping.
Variable Area Flow Meters installed in cooling application
AW-Lake variable area flow measurement system in industrial plant with calibration panels and piping.
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AW-Lake variable area flow meter in stainless steel and brass.
AW-Lake variable area flow meters shown in different sizes for precise flow measurement.
Basic Variable Area Aluminum ports
AW-Lake flow meter displaying GPM and LPM scales with vertical indicator for variable area flow measurement.
Basic Variable Area Brass ports
AW-Lake variable area flow meter for precise flow measurement in industrial systems.
Basic Variable Area stainless steel ports
AW-Lake variable area flow meter with stainless body and clear scale for GPM and LPM readings; ideal for precise flow measurement in industrial piping.
Variable Area Flow Meters installed in cooling application
AW-Lake variable area flow measurement system in industrial plant with calibration panels and piping.
Variable Area Flow Meters

Basic Variable Area Flow Meter

Basic Variable Area Flow Meter is ideal for monitoring pump performance as well as measuring fluids in hydraulic circuits and cooling systems.

The LAKE Basic Inline Variable Area flow meter is ideal for monitoring pump performance and oil or water flows through hydraulic circuits and cooling systems. Often referred to as “rotameters,” Lake’s Basic meters are a low cost alternative to other flow meter types and are available in numerous materials of construction, including aluminum, brass and stainless steel to meet system and media requirements. The superior design not only makes this flow meter weather-proof for outdoor environments and wash-downs, but also reliable offering maintenance-free performance.

Choice of Three Materials of Construction: Select from aluminum, brass or stainless steel to meet system and liquid requirements.

Unrestricted Mounting: Allows for horizontal, vertical or inverted installation and does not require straight plumbing on inlet or outlet.

Superior Exterior Design: Weather-tight for use outdoors and/or on systems where wash downs are required.

Rugged and Reliable: Designed as a hydraulic service tool, this monitor will provide years of maintenance-free performance.

High Pressure Operation: The magnetically coupled follower design allows operation to 6000 PSIG and use with liquids.

Many Different Ports Available: Standard selection of NPT, SAE and BSPP ports reduces the amount of adapters required for installation.

 

Measuring Accuracy:

±2.0% of full scale

Repeatability:

±1% of full scale

Flow Measuring Range:

0.1-150 GPM (0.5-550 LPM)

Maximum Operating Pressure:

Aluminum and brass meters: 3500 PSIG (240 Bar), Stainless steel meters: 6000 PSIG (410 Bar)

Maximum Operating Temperature:

240°F (116°C) Note: for operation to 600°F (316°C), see our High Temperature Data sheet.

Standard Calibration Fluids:

Oil meters: DTE 25® @ 110°F (43°C), 0.873 sg
Water meters: tap water @ 70°F (21°C), 1.0 sg

Filtration Requirements:

74 micron filter or 200 mesh screen minimum

Materials of Construction:

Window Tube: Polycarbonate

Window Seals: Buna-N, PTFE option 

Casing & End Ports: Anodized Aluminum, Brass, or Stainless Steel

Seals: Buna-N, optional EPR, FKM, or FFKM

Transfer Magnet: PTFE coated Alnico

All other internal parts: Stainless steel

AW-Lake flow meter in industrial setup for fluid measurement.
AW-Lake variable area flow meter used for precise liquid flow measurement in industrial systems.

Basic Variable Area Flow Meter Datasheet


Liquid Flow Meters Manual


Basic In-Line Dimensions


HPU Hydraulic Fluid Monitoring – Application Stories


HPU Builders – Smarter Monitoring with VA Meters Application Story


Vehicle Power Steering – Variable Area – Application Stories


Variable Area Flow Meter Brochure


Configure Your Meter

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Real-World Applications


Industrial gears with golden oil lubrication and precision machinery.
High-viscosity sealant and gear train lubrication captured in precision equipment.

Bearing Lubrication Monitoring

AW-Lake’s Basic Variable Area flow meters are crucial in measuring the flow of bearing lubrication to ensure that machinery operates smoothly and efficiently by maintaining optimal lubrication levels. These meters provide precise real-time data on lubricant flow, helping to prevent over-lubrication or under-lubrication, which can lead to bearing wear or failure. Industries such as automotive manufacturing, aerospace, and heavy machinery rely on these meters to monitor lubrication systems, ensuring the longevity and reliability of their equipment.

Yellow excavator arm on rugged construction site with mountains.
AW-Lake industrial machinery on a rugged outdoor construction site with mountains in the background.

Hydraulic Fluid Monitoring

Basic VA flow meters play a crucial role in hydraulic fluid monitoring, ensuring the optimal performance and longevity of hydraulic equipment such as booms, saws, drills, augers, compactors, power packs, concrete hammers, and snow removal equipment. By providing precise measurements of hydraulic fluid flow, these meters help prevent damage from over- or under-pressurization, maintain efficient operation, and maximize the equipment’s performance and reliability across various applications.

 

 

AW-Lake branded armored military vehicle in desert setting with palm trees.
Desert military scene featuring an AW-Lake armored vehicle in a sandy environment with palm trees in the background.

Vehicle Power Steering Fluid

Flow meters are utilized in vehicle power steering systems to monitor the flow of power steering fluid, serving as a vital diagnostic tool. They help ensure the power steering system remains functional, allowing for quick identification of issues and minimizing vehicle downtime. This is particularly crucial in military vehicles deployed overseas, where a power steering failure can be potentially deadly for troops relying on safe transportation.

Industrial gears with golden oil lubrication and precision machinery.
High-viscosity sealant and gear train lubrication captured in precision equipment.

Bearing Lubrication Monitoring

AW-Lake’s Basic Variable Area flow meters are crucial in measuring the flow of bearing lubrication to ensure that machinery operates smoothly and efficiently by maintaining optimal lubrication levels. These meters provide precise real-time data on lubricant flow, helping to prevent over-lubrication or under-lubrication, which can lead to bearing wear or failure. Industries such as automotive manufacturing, aerospace, and heavy machinery rely on these meters to monitor lubrication systems, ensuring the longevity and reliability of their equipment.

Yellow excavator arm on rugged construction site with mountains.
AW-Lake industrial machinery on a rugged outdoor construction site with mountains in the background.

Hydraulic Fluid Monitoring

Basic VA flow meters play a crucial role in hydraulic fluid monitoring, ensuring the optimal performance and longevity of hydraulic equipment such as booms, saws, drills, augers, compactors, power packs, concrete hammers, and snow removal equipment. By providing precise measurements of hydraulic fluid flow, these meters help prevent damage from over- or under-pressurization, maintain efficient operation, and maximize the equipment’s performance and reliability across various applications.

 

 

AW-Lake branded armored military vehicle in desert setting with palm trees.
Desert military scene featuring an AW-Lake armored vehicle in a sandy environment with palm trees in the background.

Vehicle Power Steering Fluid

Flow meters are utilized in vehicle power steering systems to monitor the flow of power steering fluid, serving as a vital diagnostic tool. They help ensure the power steering system remains functional, allowing for quick identification of issues and minimizing vehicle downtime. This is particularly crucial in military vehicles deployed overseas, where a power steering failure can be potentially deadly for troops relying on safe transportation.

We work with you to increase process efficiency, reduce costly production down-time, establish real-time monitoring and control, and provide the critical tracking and record keeping necessary to meet EPA regulations.

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