NRG Global Instruments

MAKE : NRG GLOBAL SERVICES : WATER OPERATING PRESSURE MAX : 10 KG/CM2. OPERATING TEMPERATURE : 40 ̊C MOC : SS 316 ROTTER : SS 410 WORKING CONDUCTIVITY : NOT REQURED PROCESS CONNECTION : SCREWED END MOUNTING : IN LINE HORIZONTAL. MOUNTING TYPE : INBUILT DISPLAY INPUT SUPPLY : 230V AC. DISPLAY : 9 CHARACTER X 2 LINE LED WITH BLUE BACKLIGHT. FLOW RATE : 4 DIGITS LED. TOTAL FLOW : 9 DIGITS LED. ENCLOSURE : ALUMINIUM DIE CAST FLAMEPROOF ACCURACY : +/-1% OF F.S. OUTPUT. STD. : 4 TO 20MA, RS485 SIZE : 40 NB ASA 150 # RF FLOW RANGE : 0 – 20 M3/HR

Additional Information:

• Production Capacity: 100
• Delivery Time: EX STOCK
• Packaging Details: CORRUGATED BOX

NRG GLOBAL MAKE 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.

 

Additional Information:

• Production Capacity: 100
• Delivery Time: 10 DAYS
• Packaging Details: EXPORT WORTHY PACKING