Pioneers in the industry, we offer air flow rotameter, purge glass tube rotameter, metal tube rotameter with transmitter and magnetic metal tube rotameter from India.
₹ 4,500 /Piece Get Latest Price
Tube Body Construction | Glass |
Range Ability | 1000 LPH |
Usage/Application | Industrial Use |
Brand | NRG GLOBAL INSTRUMENTS |
Nrg global instruments make Rotameter
₹ 3,150 /Piece Get Latest Price
Tube Body Construction | Glass |
Range Ability | 300 LPH |
Usage/Application | Industrial Use |
Model Name/Number | Pgtrm |
Brand | NRG GLOBAL INSTRUMENTS |
Float Material | Ptfe |
Pack Type | Corugated box |
Scale Length | 100 |
Line Size | 1/4 |
Wetted Parts | Sa303 |
₹ 18,000 /Piece Get Latest Price
Brand | Nrg global |
Usage/Application | Water |
Tube Body Construction | Stainless Steel |
Float Material | Ss316 |
Flow rate | 40 m3/hr |
Scale Length | 200 |
Country of Origin | Made in India |
Minimum order quantity: 1 Piece
Metal Variable Area Type Flow Meter are designed to measure flow rate of liquids and gases under
critical conditions. It consists of a tapered metal tube, an indicating assembly and float. A magnet
encapsulated in float couples with rotating magnets are connected to an indicating pointer. Henceforth,
the movement of the float is accurately indicated in terms of flowrate.
They are intended for application where high pressure, temperature or corrosive conditions preclude
the use of conventional glass tube. These are all Metal Variable Area Type Flow meter design to measure
flow rate of Liquids & Gases under critical conditions. It consists of a tapered metal tube, an indicating
assembly and a float. A magnet encapsulates in float couples with rotating magnets connected to an
indicating pointer, thus the movement of the float, is accurately indicated in terms of flow rate.
2. Working Principle
When fluid or gas flows through a taper tube containing a float, a pressure difference of P1 and P2 is
created between upper and lower side of the float. The float moves upwards by a force obtained by
multiplying the pressure differential by the maximum cross-sectional area of the float.
Based on Bemoulli's theorem, the principle mentioned above can be theoretically expressed as
follows. Due to taper tube, as the float moves upwards, the fluid passing area increases as a result of which the
differential pressure decreases. Upward movement of float stops when the dead load is dynamically balanced by the differential pressure. Tapering of metering tube is so designed that the vertical movement of the float becomes linearly proportional to the rate of flow and the scale is provided to read the position of the float, thus
giving birth to flow rate indication.
3. Specifications
Accuracy : ± 2% of FSD
Rangeability : 10:1
Repeatability : ± 0.5%
Temperature Rating : -200 to 250°C
Pressure Rating : 40 Bar
Flow Direction : Bottom to Top
Connections : Flanged, TC End and Screwed
Enclosure : IP 65 Weatherproof
4. Design features
1. Simplified piping and reduced space requirements
2. Permanent magnetic link between metering float and motion position transmitter
3. Precision swaged metering tube
4. Guide cartridges easily removable for cleaning
5. Provide with Electrical transmitter, flow indicator or alarm
6. Available F/F Height in 350, 450, 500 mm
7. Available Flange size 15 NB to 150 NB & Flow 200 LPH to 50,000 LPH
₹ 17,100 /Piece Get Latest Price
Application Media | Any Liquid |
Brand | NRG GLOBAL |
Material | Stainless Steel |
Size | 1" |
Temperature Range | 50 |
Installation Direction | bottom to top |
Maximum Pressure Rating | 40 bar |
Minimum order quantity: 1 Piece
NRG GLOBAL INSTRUMENTS Make Metal tube Rotameters are variable area flowmeters for measuring volumetric flow rates of liquids and Gases. The construction includes a tapered stainless-steel tube. A float with a magnet embedded in it, moves inside a tapered tube. The float is magnetically coupled with an indicating pointer assembly.
Rikesh Bhagat (CEO)
NRG Global Instruments
PLOT NO 986/20/1, DIAMOND PARK, GIDC IND ESTATE, MAKARPURA, Gate no-2, Vadodara - 390010, Gujarat, India