RENTALS
Portable ultrasonic flow meter rentals
Temporary flow measurement for surveys, verification and troubleshooting.
Enquire about rentals
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02 / MEASURE FLOWFind your flow technology.Liquid, gas and steam measurement for your process.
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03 / MEASURE LEVELSee your process with clarity.Continuous level measurement for tanks, vessels and channels.
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NAGMAN — PROCESS INSTRUMENTS & CALIBRATION SYSTEMS
FROM DESIGN TO COMMISSIONING
Every measurement project starts with a different challenge. We bring the system together: test lines, reference instruments, controls, programming and practical engineering.
From dedicated laboratory installations to mobile calibration systems, the result is built around how you need to work.
Real engineering, beyond the laboratory: a vehicle-mounted calibration system.
CALIBRATION SYSTEMS
We manufacture flow, water, gas and level calibration systems in Chennai for laboratories, meter manufacturers and utilities. Explore the capabilities below.
*Ranges cover different system designs, not one standard model. Final capacity, accuracy and test coverage depend on the selected configuration. Contact us for other ranges and specify your requirements in your enquiry.
FLOCAL
We manufacture FLOCAL flow meter calibration systems for meter manufacturers, calibration laboratories and process plants. Calibrate electromagnetic, Coriolis, turbine, ultrasonic, vortex and positive displacement meters on one purpose-built test facility.
| Capacity | DN 3–600 · 1–25,000 L/min* |
|---|---|
| Reference methods | Gravimetric or master meter comparison |
| Operation | Manual, semi-automatic or fully automatic |
Accuracy down to ±0.05% is achievable with a suitable system.* Gravimetric systems use the weighing method described in ISO 4185.
WATCAL
WATCAL water meter calibration benches help manufacturers, utilities and laboratories check domestic and bulk water meters before supply or during service. Test mechanical, ultrasonic and electromagnetic meters, with multiple test positions available.
| Meter sizes | DN 15–300 and project-specific sizes* |
|---|---|
| Test methods | Gravimetric or master meter comparison |
| Accuracy options | Down to ±0.05% with a suitable system* |
We configure the test points, clamping and automation around your meter range and applicable ISO 4064 / OIML R 49 requirements.
MOBICAL
Take calibration to your customer with MOBICAL. Our vehicle-mounted and skid-mounted flow meter calibration systems help service teams test meters closer to where they are used, reducing the need to transport instruments to a remote laboratory.
| Typical capacity | DN 6–100 · 1–2,500 L/min* |
|---|---|
| Reference method | Comparison with calibrated master meters |
| Installation | Vehicle-mounted or mobile skid |
We plan the test lines, reservoir, pump and power supply around the available space and site requirements. Accuracy up to ±0.1% is achievable.*
GASCAL
GASCAL gas meter calibration systems give manufacturers, utilities and testing laboratories a dedicated facility to verify gas meter performance. We select a bell prover or sonic nozzle reference to suit the meters and flow rates you need to test.
| Reference options | Bell prover or sonic nozzle |
|---|---|
| Test capacity | Meter sizes and flow range to order |
| Operation | Automation and clamping to suit your work |
Bell provers provide a volume reference; sonic nozzles provide a flow reference. We recommend the approach that fits your laboratory and testing needs.
LEVELCAL
Verify level transmitters against a known liquid level with LEVELCAL. Our level transmitter calibration rigs support radar, ultrasonic, guided wave, float and other compatible instruments for manufacturers, instrument workshops and calibration laboratories.
| Typical level ranges | 1,000–4,000 mm; other ranges on request* |
|---|---|
| Calibration medium | Water |
| System options | Manual or automated operation |
Interconnected chambers establish the same liquid level for the reference and test instruments. We configure the mounting, reference measurement and controls for your transmitters.
MORE CALIBRATION CAPABILITY
INDUSTRIAL FLOW MEASUREMENT
Find the right measurement technology for your medium, installation and operating conditions.
Electromagnetic
Measure conductive liquids in water, wastewater and industrial processes with NAGMAG electromagnetic flow meters. A design with no moving parts and application-specific liners and electrodes supports reliable measurement across a range of liquid duties.
Conductive liquids · No moving parts.
Portable ultrasonic
Measure liquid flow without cutting the pipe with SONICNAG portable ultrasonic flow meters. Clamp-on sensors make flow surveys, verification and troubleshooting practical on existing pipework, with a portable kit ready for use in the field.
Clamp-on sensors · Portable flow surveys.
Coriolis mass
Measure mass flow and density directly with NAGMASS Coriolis flow meters. Designed for high-accuracy batching and process measurement, the range includes dedicated cryogenic models for liquid industrial gases, selected to suit your operating conditions.
Mass flow and density · Cryogenic models available.
Turbine
Measure clean water, fuels and suitable low-viscosity liquids with NAGBINE turbine flow meters. Accurate, repeatable measurement supports batching and liquid transfer, with the meter selected to match your fluid, flow range and installation requirements.
Clean liquids · Batching and transfer.
MORE FLOW MEASUREMENT TECHNOLOGIES
LEVEL TRANSMITTERS
Measure tank and vessel levels without contacting the medium. NAGLEV radar level transmitters provide continuous level measurement for process tanks and bulk storage applications.
Non-contact radar for process tanks and bulk storage.
Monitor liquid levels in water supply and wastewater applications. NAGLEV ultrasonic level transmitters use non-contact sound pulses for continuous tank and reservoir level measurement.
Ultrasonic level monitoring for water and wastewater.
Continuous vessel level measurement using radar pulses guided along a probe. NAGLEV guided wave radar transmitters are configured with the probe, process connection and wetted materials your application requires.
Probe-guided radar for continuous vessel level measurement.
Measure water level and surface velocity in open channels with NAGLEV OC 45M radar instrumentation. We review your channel, mounting position and operating conditions to define the measurement setup.
Open-channel radar · Non-contact water measurement.
LEVEL MEASUREMENT RESOURCES
SERVICES & RENTALS
Rent, verify, test and diagnose with Nagman Flow. Practical measurement support for your next requirement.
Temporary flow measurement for surveys, verification and troubleshooting.
Enquire about rentals
Testing support for water meter performance and product evaluation.
Discuss your test requirements
Check liquid delivery and unloading with our turbine flow verification skid.
Arrange tanker verificationInvestigate flow measurement issues and discuss the tests your meter needs.
Discuss your meter issueDomestic water and gas meters, oxygen rotameters, level transmitters, flow and BTU meters.
Domestic water meter test kits, electromagnetic flow meters, level transmitters and fuel flow verification kits.
Flow, pump, valve and level verification; hydro-testing and custom product flow tests.
WHY NAGMAN FLOW
01
Your target calibration uncertainty determines the reference instruments and method. We offer gravimetric and master meter comparison systems, with flow control selected for the range you need to test.
02
CALFLOW captures test data, calculates calibration error and stores results for later review. Data logging, report formats and PLC / HMI / SCADA integration can be configured to suit your laboratory.
03
We handle system design, manufacture, installation and commissioning. Operator training and after-sales support help your team use and maintain the test facility, with one engineering partner for the complete system.
Test water meters through their operating life.
We manufacture type test benches for 10+ tests dor domestic water meters, including accuracy, endurance, temperature, flow disturbance, pressure loss and static pressure
Bring gas meter calibration to a compact bench.
We build MINI-GASCAL for domestic gas meter testing where a smaller laboratory footprint matters with pneumantic clamping and automation to ensure faster calibration
APPLICATIONS
Whether you’re building a calibration laboratory, tracking plant water use, controlling a batch or monitoring a tank, we help you select and specify the right measurement solution.
We help you monitor domestic, industrial plant water use, treatment flow and discharge. For cost-conscious water and wastewater projects, we offer NAGMAG NEO, our economical electromagnetic flow meter model, selected to suit the liquid, conductivity and installation.
We build flow, water and gas meter calibration systems for laboratories, manufacturers and utilities. We configure the reference method, flow range, meter sizes and automation around the calibration uncertainty and throughput your laboratory needs. Customized to your application, needs and budget.
We help you measure steam and gas use across your plant. We review the medium, temperature, pressure and flow range to select vortex or thermal mass instruments for utility monitoring and process control. We also help with low flow measurement with our mass flow meters and controllers.
We help you batch and transfer liquids with NAGBINE turbine flow meters—from hygienic food and beverage processing to de-ionized water in pharmaceutical & chemical plants. Sanitary options support hygienic installations, while our turbine-meter skids measure water-tanker unloading and other compatible liquid transfers.
Measure cryogenic liquid mass flow with NAGMASS Coriolis meters, with dedicated models for temperatures down to −196°C and ±0.1% mass-flow accuracy under specified operating conditions. We help you select the meter for liquid nitrogen/oxygen, industrial gases and research applications, checking flow range, pressure, temperature and accuracy.
We help you follow stock levels and keep your process supplied. We review tank geometry, medium, temperature, foam and vapour conditions to select radar, ultrasonic or guided wave radar level measurement suited to your installation. High accuracy non contact level measurement for Liquids and Solids including corrosive, fuming liquids and powdered solids.
Representative industry photographs; calibration laboratory: Nagman Flow. Cryogenic research image: NASA
TECHNICAL RESOURCES
Share your process conditions and the result you need. We’ll help you specify the instrument or calibration system that fits your project.
THINGS TO KNOW
Nagman Flow designs and manufactures calibration and testing systems, including flow, water, gas and level systems. Its industrial product range also includes flow meters and level transmitters.
Yes. System configuration depends on the meters, size and flow ranges, test medium, reference method, automation and installation. Share these requirements so the engineering team can review a suitable approach.
Yes. Use Technical RFQ for a flow meter, level transmitter or a complete calibration system. The selected product is carried into the form, and you can edit it before sending.
Start with the application, medium, range and installation location. For systems, include meter sizes, reference method, automation and any applicable standards. The Technical RFQ form keeps the more detailed questions together.
Start with the medium, measuring range and process conditions. For flow, include pipe size, conductivity or viscosity where relevant, and installation constraints. For level, include vessel dimensions, mounting, foam or vapour, and the required output.
No. An instrument accuracy specification and the uncertainty of a calibration result describe different aspects of measurement. State each requirement separately in your Technical RFQ, along with the range, reference method and applicable test conditions.
LET’S DEFINE THE RIGHT SOLUTION
Tell us what you need to measure, test or calibrate. Our team will help define the next step.
QUICK ENQUIRY
A few details are enough to start. Fields marked * are required.
TECHNICAL RFQ
Share the details you have. You can leave technical items blank if you need guidance. Fields marked * are required.
NAGMAN INSTRUMENTS CONSORTIUM · SINCE 1972
Nagman Flow is part of the Nagman Instruments Consortium. Together, our companies bring decades of experience in process instrumentation, calibration equipment and laboratory services to your measurement project.
See flow calibration in action, from the test line to the measurement system.
OUR CUSTOMERS
Serving utilities, process industries, research and engineering organisations in India and worldwide. A selection from our published customer references.
