Nagman Flow offers a Calibration of Water Meters bench for domestic water meters (DN 15–25). This automatic gravimetric calibration system is designed to conduct multiple tests to ensure accuracy, durability, and compliance with BIS 779 and ISO 4064 standards.
Whether you are a manufacturer, testing laboratory, or water utility, our calibration solution provides a reliable way to validate water meters without requiring large capital investment.
The calibration bench supports the following tests commonly required for meter validation:
Single Jet Water Meters
Multi Jet Water Meters
Electromagnetic Water Meters
Ultrasonic Water Meters
Automatic operation with Gravimetric principle
Suitable for DN 15 – DN 50 water meters
Complies with BIS 779 & ISO 4064
Capable of 9+ different tests
| Meter Sizes | DN 15 / DN 20 / DN 25 / DN 50 |
| Flow Range | Minimum 30 LPH to Maximum 7000 LPH (0.03 to 7 m³/hr) |
| System Operation | Automatic |
| Method of Calibration | Gravimetric |
| Number of Test Line | Single |
| Calibration Media | Water |
| Number of meters can be Calibrated at a time | 5 Nos. of Water Meters of Size DN 15 (OR) |
| 4 Nos. of Water Meters of Size DN 20 (OR) | |
| 3 Nos. of Water Meters of Size DN 25 | |
| Reference Meters | 1 No. of Each Calibrated & Certified Electromagnetic Flow Meters of Sizes |
| DN 6 – Flow Range: 30 LPH to 1000 LPH (0.03 to 1 m³/hr) Accuracy: ± 0.5% of Reading | |
| DN 25 – Flow Range: 800 LPH to 17000 LPH (0.8 to 17 m³/hr) Accuracy: ± 0.2% of Reading | |
| Meter Clamping | Pneumatic Clamping System |
| Compressed Air | 6 bar through Oil free Compressor for Pneumatic Clamping & Pneumatic operated Valves |
| Flow Control | Through VFD’s Connected to the Pumps & Electrically operated control Valves |
| Water supply – Through Pumps | 10 m³/hr @ 16 Bar, 7.5 Kw / 3Phase/ 50Hz |
| Pressure Measurement | Pressure Transmitter (Inlet / Outlet) Range: 0 to 16 bar |
| Temperature Measurement | RTD with Temperature Transmitter Range: 0 to 100°C (class A) |
| Damping Tank | Capacity 100 liters; MOC: MS Powder Coated inside, epoxy coated |
| Collection Tank & Weighing Scale (IND 360 WITH PROFINET COMMUNICATION) | A 25 Liters Collection Tank mounted on a 30 Kg Weighing Scale (Resolution: 5 g) |
| A 125 Liters Collection Tank mounted on a 30 Kg Weighing Scale (Resolution: 20 g) | |
| Optical Heads / Optical Probes | Suitable Probes or communications cables will be provided for getting the test meter reading in automode. (Pending) – Pulse/RS485 |
Endurance
Orientation
Accuracy
Reverse Flow
Temperature
Static Pressure
Flow Disturbance
Position Change
Pressure Loss
Nagman Complex, No. 168/7, Chennai-Bangalore NH-4, Chembarambakkam, Chennai – 600 123. Tamil Nadu, INDIA.
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