Acrylic Flow Meters

Metal Tube Rotameters - Digital Type Transmitter

We are Authorized Dealer, Distributor, Supplier, Exporter, Calibrator, Repairer (Servicing / Repairing Services Provider) of Metal Tube Rotameters, Digital Type Transmitters, Digital Metal Tube Rotameters, Digital Variable Area Flow Meters from Pune, Maharashtra, India. Nirmay Instruments is a reputed Manufacturer of these products. Majorly we target customers from ALL OVER MAHARASHTRA and then Indian Metro Cities like Mumbai (Maharashtra), Delhi, Kolkata (West Bengal), Chennai (Tamil Nadu), Bangalore (Karnataka), Hyderabad (Telangana), Ahmedabad (Gujarat), Pune (Maharashtra), Surat (Gujarat).


Nirmay make Digital Metal Tube Rotameter is designed taking industrial applications into focus. The Light weight and Explosion proof body makes it a highly suitable instrument to be used in hazardous environments.

Pros of the Digital Variable Area Flow Meter :
Local Indication without the need of auxiliary power
Minimum pressure loss
Easy to read
Accurate measurement even at higher flow (150 M3/Hr)
Suitable for low flow (8 LPH)
Default inbuilt transmitter of 4-20 mA (Loop Powered)
No movement assembly reducing the maintenance


It operates on the principle of Variable Area; the fluid in the metal tube raises a float in the taper tube increasing the area for passage of fluid. The float moves up in proportion to the rate of flow of fluid and get stabilized when the weight of the float is balanced by the upward hydraulic force. The flow rate is determined by the combined effect of the float movement and the magnetic field changes relative to the float movement. As such this flow meter does not require any electrical connection since it operates on battery. It has an inbuilt two wire transmitter provide 24VDC and take 4-20 mA .



TECHNICAL SPECIFICATION
Accuracy +/- 1.5% of FSR. metal tube rotameters diagram
Rangeability 10:1
Repeatability +/- 0.25% of FSR
Temperature Rating -50 to 120 °C
Pressure Rating 80 kg/cm2
Flow Direction Bottom to Top
End Connection Flanged to suit customer's requirement
Wetted Part To suitable specific liquid or gases
Mounting position Vertical
Indication Digital flow rate
Transmission 2 wire loop powered
Enclosure Flameproof Weatherproof
Power supply 9 VDC Battery


MAXIMUM FLOW AND PRESSURE LOSS
Line Size NB 200C Water Flow m3/hr O0c 1 atm Air Flow Nm3/hr Approx Pressure Loss MM WC
15 0.2 - 1.2 6 - 35 200 - 225
20 0.4 - 2.0 8 - 60 220 - 230
25 1 - 5 30-150 200 - 270
40 2.5 - 10 70 - 300 200 - 250
50 3.5 - 17 100 - 500 225 - 280
80 10 - 45 300 - 1200 225 - 280
85 6-30 200 - 900 225 - 240
100 20 - 100 600 - 3000 350 - 850
125 30 - 120 900 - 4000 300 - 850
150 30 - 150 900 - 4500 350 - 950