NAGMAN — PROCESS INSTRUMENTS & CALIBRATION SYSTEMS
At Nagman Flow, we manufacture industrial flow meters, level transmitters and advanced calibration systems for industry, laboratories and on-site use.
01 / CALIBRATE
Custom built Systems for your meters and calibration requirements.
03 / MEASURE LEVEL
Measure Solid/ Liquid levels in tanks, vessels, silos and open channels.
04 / SERVICES
Rent equipment or arrange testing and on-site verification.
Engineered in Chennai, India. Supporting industry, laboratories and the field worldwide.
CALIBRATION SYSTEMS
We manufacture flow meter, water meter , gas meter and level meter calibration systems in Chennai for laboratories, meter manufacturers and utilities. Explore the capabilities below.
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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 flow meters on one purpose-built test facility.
| Capacity | DN 3–600 · 1–25,000 L/min* |
|---|---|
| Reference methods | Gravimetric or master meter comparison |
| Accuracy / Uncertainty | Down to ±0.05% with a suitable system* |
Manual, Semi-Automatic and Fully Automatic modes of operation . Fully Compliant to ISO 4185 with optional consultancy for NABL accreditation for the systems.
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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 |
| Operation Mode | Manual, Semi-Automatic and Fully Automatic |
We configure the test points, clamping and automation around your meter range and applicable ISO 4064 / OIML R 49 requirements.
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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.*
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GASCAL
GASCAL gas meter calibration systems give manufacturers, utilities and testing laboratories a dedicated facility to verify gas meter performance. We select a sonic nozzle or master meter reference to suit the meters and flow rates you need to test.
| Reference options | Sonic nozzle or Master meter |
|---|---|
| Test capacity | Meter sizes and flow range to order |
| Operation | Automation and clamping to suit your work |
Master meters for Domestic gas meters; Sonic nozzles provide a high accurate flow reference. We recommend the approach that fits your laboratory and testing needs.
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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; up to 20000mm with DRYCAL |
|---|---|
| Calibration medium | Water / Laser |
| 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.
*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.
MORE CALIBRATION CAPABILITY
Custom calibration systems for industrial and medical oxygen rotameters.
Comprehensive system with 10+ tests such as Accuracy, endurance for Domestic water meters.
Water meter testing / calibration in the field with battery operated / single phase skids/kits
INDUSTRIAL FLOW MEASUREMENT
Find the right measurement technology for your medium, installation and operating conditions. We also offer IoT and Cloud solutions for your requirements.
FT / FOUR TECHNOLOGIES. ONE DIRECTION. Scroll to explore →
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ELECTROMAGNETIC / FT 01
Reliable flow measurement for conductive liquids, from plant water to wastewater, from corrosive liquids to slurry. Accurate Flow measurement.
Sizes: DN 3–3000 · Economical NAGMAG NEO: DN 15–400
FT / 02
PORTABLE ULTRASONIC / FT 02
Measure liquid flow without cutting the pipe. A portable clamp-on kit for surveys, verification and calibration on existing pipes. 10+ models available.
Pipe sizes: DN 15–6000· Suitable for most pipes and most liquids
FT / 03
CORIOLIS MASS / FT 03
Direct mass flow and density measurement for demanding processes, with dedicated cryogenic models for liquids industrial gases.
Sizes: DN 8–300 · High Accuracy (±0.1%) models available.
FT / 04
TURBINE / FT 04
Accurate, repeatable measurement for clean liquids. A versatile choice for batching, hygienic applications and tanker unloading.
Sizes: DN 4–200 · Clean liquids, batching and custody transfer
Four technologies. Built around your process.
MORE FLOW MEASUREMENT TECHNOLOGIES
Flow measurement for air and gases. Measure compressed air, natural gas flow
Volumetric measurement for compatible liquids. Suitable for Oils and Petrochemicals
LT / A DIFFERENT PERSPECTIVE. Scroll to discover ↓
Measure tank, silos and vessel levels without contacting the medium. NAGLEV radar level transmitters provide accurate continuous level measurement for process tanks and bulk storage applications.
Measuring spans: 10–120 m, With False Echo and Air Purging
LT / 01
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.
Measuring spans: 4–30 m, Economical Level Measurement
LT / 02
Continuous vessel level measurement using radar pulses guided along a probe. NAGLEV guided wave radar transmitters are configured based on your requirements and specifications.
Measuring spans: 1–10 m, Not affected by foams/fumes
LT / 03
Measure water level and surface velocity in open channels with NAGLEV OC ultrasonic / radar instrumentation. We review your channel, mounting position and operating conditions to define the measurement setup. Radar does not need plume/channel details
Simultaneous Flow and Level · Open Channels, Rivers, Storm drains
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SERVICES & RENTALS
Rent, verify, test and diagnose with Nagman Flow. Practical measurement support for your next requirement.
RENTALS
Temporary flow measurement for surveys, verification and troubleshooting.
TYPE TESTING
Testing support for water meter performance and product evaluation.
VERIFICATION
Check liquid delivery and unloading with our turbine flow verification skid.
TEST & DIAGNOSIS
Investigate flow measurement issues and discuss the tests your meter needs.
CALIBRATION SERVICES
Domestic water and gas meters, oxygen rotameters, level transmitters, flow and BTU meters.
ADDITIONAL RENTALS
Domestic water meter test kits, electromagnetic flow meters, level transmitters and fuel flow verification kits.
ON-SITE & CUSTOM TESTING
Flow, pump, valve and level verification; hydro-testing and custom product flow tests.
APPLICATIONS
Whether you’re building a calibration laboratory, tracking plant water use, controlling a batch or monitoring a tank, we help you select the right measurement solution.
01 / WATER
We help you measure water use, treatment flow and discharge. NAGMAG NEO offers an economical electromagnetic flow measurement option for water and wastewater applications. Flow meter is also suitable for STP/ETP plants, Apartments, Societies for RO / Ground water / Slurry flow measurement
02 / CALIBRATION LABORATORIES
We build flow, water and gas meter calibration systems for laboratories, manufacturers and utilities. We select the calibration method, flow range, meter sizes and automation to suit your testing needs and budget. We provide turn-key solution to create a calibration facility for your need.
03 / PLANT UTILITIES
We help you measure steam, air and gas flow across your plant. We select vortex, thermal mass or other suitable meters based on your flow range, temperature and pressure. We also supply mass flow meters and controllers for low flow gas flow measurement and control.
04 / BATCHING & UNLOADING
NAGBINE turbine flow meters measure clean liquids for batching and transfer. Applications include food and beverage production, de-ionized water in pharmaceutical plants and water-tanker unloading. We also supply sanitary meters and portable verification skids for water, edible oil and fuels.
05 / CRYOGENIC MASS FLOW
We supply dedicated NAGMASS Coriolis models for cryogenic liquids down to −196°C, with ±0.1% mass-flow accuracy under specified operating conditions. We help you select a meter for liquid nitrogen, liquid oxygen and other industrial or research applications. We also support flow meters for high pressure.
06 / TANKS & VESSELS
We help you monitor liquid and solid levels in tanks, vessels and silos. We select radar, ultrasonic or guided wave radar instruments based on the tank, material and operating conditions, including foam, vapour and temperature. Measure everything from grains to powders to harsh liquids to water.
Representative industry photographs; calibration laboratory: Nagman Flow. Cryogenic research image: NASA.
FROM DESIGN TO COMMISSIONING
We design complete measurement and calibration systems, including piping, reference instruments, controls and software.
We supply laboratory systems and mobile calibration equipment, built to suit the way your team works.
Real engineering, beyond the laboratory: a vehicle-mounted calibration system.
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.
Water meter type testing.
We manufacture benches for water meter tests including accuracy, endurance, temperature, flow disturbance, pressure loss and static pressure.
Gas meter calibration in a compact bench.
MINI-GASCAL is designed for domestic gas meter testing in smaller laboratories. Pneumatic clamping and automatic controls help reduce testing time.
NAGMAN INSTRUMENTS CONSORTIUM · SINCE 1972
Nagman Flow is part of the Nagman Instruments Consortium. We bring together instrument manufacturing, calibration equipment and specialist calibration services.
See flow calibration in action, from the test line to the measurement system.
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.
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.
LET’S DEFINE THE RIGHT SOLUTION
Tell us what you need to measure, test or calibrate. Our team will help define the next step.
Interactive example · 0–100% linear scale
In this example, 4 mA represents 0% and 20 mA represents 100%. The offset separates the zero-scale signal from 0 mA. Try the two ends of the slider.
OUR CUSTOMERS
Serving laboratories, manufacturers, utilities, process industries, research and engineering organisations in India and worldwide. A selection from our published customer references.
QUICK ENQUIRY
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Prefer to contact us directly? sales@nagmanflow.com · +91-44-66777055
TECHNICAL RFQ
Share the details you have. You can leave technical items blank if you need guidance. Fields marked * are required.
Prefer to contact us directly? sales@nagmanflow.com · +91-44-66777055
