Nagman flow calibration facility with a complete calibration system
Complete Nagman FLOCAL flow meter calibration system

NAGMAN — PROCESS INSTRUMENTS & CALIBRATION SYSTEMS

Measure Flow and Level
with Confidence

Process instruments and complete calibration systems, engineered by Nagman. Explore industrial flow meters, level transmitters and calibration solutions for the laboratory and the field.

FROM DESIGN TO COMMISSIONING

Built for the laboratory.
Ready for the field.

Every measurement project starts with a different challenge. We bring the system together: test lines, reference instruments, controls, software and practical engineering.

From dedicated laboratory installations to mobile calibration systems, the result is built around how you need to work.

Nagman MOBICAL vehicle-mounted flow meter calibration system with test line and integrated controls

Real engineering, beyond the laboratory: a vehicle-mounted calibration system.

CALIBRATION SYSTEMS

Explore our
calibration systems.

One engineering partner. A system configured for your measurement project.

Complete Nagman FLOCAL flow meter calibration system
Nagman WATCAL water meter test bench
Nagman mobile flow calibration skid
Nagman GASCAL sonic nozzle gas meter calibration test bench

FLOCAL

Flow meter calibration systems

Fully automatic flow meter calibration systems for sizes from 3 mm to 600 mm. FLOCAL integrates the test line, reference instruments, controls and CALFLOW reporting for gravimetric, volumetric or master-meter calibration.

Fully automatic systems · 3–600 mm meter sizes.

Method focus: ISO 4185 covers liquid-flow measurement by weighing. The selected method and uncertainty budget define the final system.

WATCAL

Water meter test benches

Fully automatic, high-accuracy water meter calibration benches for domestic and bulk meters. WATCAL combines multi-meter test lines, automated controls and reporting for mechanical, ultrasonic and electromagnetic water meter testing.

Fully automatic testing · High-accuracy calibration.

Test programme: ISO 4064-2 / OIML R 49-2 addresses water-meter test methods. Specify the required tests and edition in your RFQ.

MOBICAL

Mobile flow calibration systems

Bring flow meter calibration to the site with MOBICAL. Integrated skid and vehicle-mounted systems combine reference meters, controls and reporting for practical field calibration.

On-site calibration in skid or vehicle-mounted formats.

GASCAL

Gas meter calibration systems

Calibrate and test gas meters with GASCAL sonic nozzle or bell prover systems. Each bench is engineered for your meter capacities, test programme and automation requirements.

Gas meter calibration using sonic nozzles or bell provers.

INDUSTRIAL FLOW MEASUREMENT

Flow meters.
Built for every process.

Find the right measurement technology for your medium, installation and operating conditions.

Nagman NAGMAG electromagnetic flow meter

Electromagnetic

NAGMAG

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.

SONICNAG portable ultrasonic flow meter with clamp-on sensors and accessories

Portable ultrasonic

SONICNAG

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.

Nagman Coriolis mass flow meter

Coriolis mass

NAGMASS

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.

Nagman NAGBINE stainless steel turbine flow meter

Turbine

NAGBINE

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.

LEVEL TRANSMITTERS

Level measurement.
With clarity.

Radar level measurement

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.

Ultrasonic level measurement

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.

Guided wave radar

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.

Nagman NAGLEV flanged radar level transmitter
Nagman NAGLEV ultrasonic level transmitter
Nagman guided wave radar level transmitter

OUR CALIBRATION SYSTEMS

We build calibration systems
around your requirements.

01

Customised to your workflow

We design each system around your meters, test medium, size and flow ranges, available space and throughput. From a compact bench to a fully automatic installation, we configure the test lines, automation and CALFLOW software to suit the way your laboratory works.

02

Engineered for accuracy

We select the reference method and instruments around your accuracy and calibration uncertainty requirements. Gravimetric, volumetric and comparison approaches are matched to the application, with integrated controls and CALFLOW data capture and reporting to support consistent, repeatable testing.

03

Robust by design

We bring robust mechanical construction, instrumentation and controls together in a complete working system. We build for regular laboratory use and support your team with commissioning, training and service, so you have dependable equipment and practical support beyond installation.

Nagman type test bench with integrated control cabinet

Test water meters through their operating life.
We configure type test benches for 10+ tests, bringing the test lines and controls together around your test programme.

Nagman MINI-GASCAL compact gas meter calibration system

Bring gas meter calibration to a compact bench.
We build MINI-GASCAL for gas meter testing where a smaller laboratory footprint matters.

APPLICATIONS

Tell us your application.
We’ll help you measure it.

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.

Water & wastewater

We help you monitor 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.

Explore water flow measurement

Flow, water & gas calibration labs

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.

Explore laboratory calibration systems

Steam, air & process utilities

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.

Explore process flow measurement

Mass flow for accurate batches

When a batch depends on the quantity delivered, we help you measure mass flow and density directly with Coriolis meters. We review your fluid and operating conditions, including dedicated cryogenic models for suitable industrial-gas applications.

Explore Coriolis mass flow meters

Process fluid measurement

We help you measure hazardous and corrosive chemicals, cryogenic fluids and food-grade liquids. We review wetted materials, operating conditions, hygienic requirements and any required hazardous-area approvals before recommending the right flow measurement solution for your process.

Explore process flow meters

Tank & vessel level

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.

Explore tank level measurement

TECHNICAL RESOURCES

Let’s specify your solution.

Share your process conditions and the result you need. We’ll help you work through the instrument specifications or system questionnaire and identify the details that matter for your project.

System catalogues & questionnairesFlow meter documentationLevel transmitter documentation

THINGS TO KNOW

Before we engineer
your solution.

What does Nagman Flow manufacture?

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.

Can a calibration system be customised?

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.

Can I enquire about instruments as well as complete systems?

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.

What information should I share for a quotation?

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.

How do I choose a flow meter or level transmitter?

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.

Are accuracy and calibration uncertainty the same?

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

Your measurement project
deserves the right solution.

Tell us what you need to measure, test or calibrate. Our team will help define the next step.

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      NAGMAN INSTRUMENTS CONSORTIUM · SINCE 1972

      One legacy.
      A wider world of measurement.

      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.

      Nagman’s Fluid Flow Lab

      See flow calibration in action, from the test line to the measurement system.

      Watch on YouTube ↗

      OUR CUSTOMERS

      Measurement that connects
      industries and institutions.

      Serving utilities, process industries, research and engineering organisations in India and worldwide. A selection from our published customer references.

      IN INDIA Industry · Utilities · Research

      IndianOil logo
      IndianOil
      Bharat Petroleum logo
      Bharat Petroleum
      BARC logo
      BARC
      Tata Chemicals logo
      Tata Chemicals
      Indian Railways logo
      Indian Railways
      NPCIL logo
      NPCIL
      CSIR–NPL logo
      CSIR–NPL
      Cochin Shipyard logo
      Cochin Shipyard

      WORLDWIDE Laboratories · Water utilities · Engineering

      NML logo
      NML
      PICS Arabia logo
      PICS Arabia
      Northern Region Water Board logo
      Northern Region Water Board
      EATL logo
      EATL
      Explore our supply references ↗

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