'fluid passing area'

NRG GLOBAL INSTRUMENTS MAKE Glass Tube Variable Area Flow Meters (Rotameters) are intended for general in line and ByPass metering applications (i.e. for Gas & Liquid) where operating conditions are with the limitations of Glass metering tubes. These are the principle of Variable Area. The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. The Vertical position of the float as indicated by scale is the measure of the instantaneous flow rate. 2. Principal of Operation 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. 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.

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, thusgiving birth to flow rate indication.

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

1. PRODUCT DESCRIPTIONNRG GLOBAL INSTRUMENTS MAKE Glass Tube Variable Area Flow Meters (Rotameters) are intended for general in line and ByPass metering applications (i.e. for Gas & Liquid) where operating conditions are with the limitations of Glass metering tubes. These are the principle of Variable Area.The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. The Vertical position of the float as indicated by scale is the measure of the instantaneous flow rate.2. PRINCIPAL OF OPERATIONWhen 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. 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 deadload is dynamically balanced by the differential pressure.

Metal Variable Area Type Flow Meter are designed to measure flow rate of liquids and gases undercritical conditions. It consists of a tapered metal tube, an indicating assembly and float. A magnetencapsulated 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 precludethe use of conventional glass tube. These are all Metal Variable Area Type Flow meter design to measureflow rate of Liquids & Gases under critical conditions. It consists of a tapered metal tube, an indicatingassembly and a float. A magnet encapsulates in float couples with rotating magnets connected to anindicating pointer, thus the movement of the float, is accurately indicated in terms of flow rate.2. Working PrincipleWhen fluid or gas flows through a taper tube containing a float, a pressure difference of P1 and P2 iscreated between upper and lower side of the float. The float moves upwards by a force obtained bymultiplying 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 asfollows. Due to taper tube, as the float moves upwards, the fluid passing area increases as a result of which thedifferential 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, thusgiving birth to flow rate indication.

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

1. Product Description NRG GLOBAL Introduced magnetically float operated Top Mounted Level Switch for controlling one or multi Levels by using reed Switch. The Unit Consists of Vertical Guide Pipe (Stem), Reed Switches Are located, Magnetic Float Sliding over the Stem according to the level in the tank. After passing the float, the reed relay will retain their output state. Various materials of construction are available depending up on Service Condition. Maximum 4 Set points can be given in a Single Level Switch & Maximum stem length will be 3 Meters. 2. Technical Data Float : S.S.316 / SS with PTFE / Poly Propylene Process Connection : Flanged / Screwed / TC Joint Flange : Mini 1” NB to Any Size in C.S. / S.S.304 / S.S.316 / SS with PTFE Coated / P.P. Switch : Hermetically Sealed Magnetically Operated Reed Switch with Rhodium Contact SPST / SPDT. Rating : 0.5 Amps @ 24 V DC Switch Housing : Die Cast Aluminum, Weather Proof IP 65 (Enclosure) / Flame Proof to II A, II B (IS – 2148 CMRS Dhanbad Approved) Operating Pressure : 10 Kg / Cm2 Operating Temp : Max. 90 C. Cable Entry : ½” NPT (F) OR ¾” ET (F) No of Switches : As Per Customer Requirement Stem Length : Up to 3 Meters 3. Design features 1. One Moving Component Exists, so that no – wear of float. 2. Suitable for any fluid having Specific Gravity Above 0.7 3. Minimum possible Distance between 2 Level set Points is 75 mm. 4. Accuracy : ± 0.10%, ± 0.25 %, ± 0.5 % on F.S. 5. The switch operates on the principle of magnetic flux coupling with no mechanical connection so that fluid contamination of switch components cannot occur. 4. Ordering Information Information Required to Quote: Material of Construction, Service Medium, Specific Gravity, Max. Pressure & Temperature, Number of Actuating Levels & Their Distance from top of the Connection, Process Connection.

1. Product Description NRG GLOBAL Introduced magnetically float operated Top Mounted Level Switch for controlling one or multi Levels by using reed Switch. The Unit Consists of Vertical Guide Pipe (Stem), Reed Switches Are located, Magnetic Float Sliding over the Stem according to the level in the tank. After passing the float, the reed relay will retain their output state. Various materials of construction are available depending up on Service Condition. Maximum 4 Set points can be given in a Single Level Switch & Maximum stem length will be 3 Meters. 2. Technical Data Float : S.S.316 / SS with PTFE / Poly Propylene Process Connection : Flanged / Screwed / TC Joint Flange : Mini 1” NB to Any Size in C.S. / S.S.304 / S.S.316 / SS with PTFE Coated / P.P. Switch : Hermetically Sealed Magnetically Operated Reed Switch with Rhodium Contact SPST / SPDT. Rating : 0.5 Amps @ 24 V DC Switch Housing : Die Cast Aluminum, Weather Proof IP 65 (Enclosure) / Flame Proof to II A, II B (IS – 2148 CMRS Dhanbad Approved) Operating Pressure : 10 Kg / Cm2 Operating Temp : Max. 90 C. Cable Entry : ½” NPT (F) OR ¾” ET (F) No of Switches : As Per Customer Requirement Stem Length : Up to 3 Meters 3. Design features 1. One Moving Component Exists, so that no – wear of float. 2. Suitable for any fluid having Specific Gravity Above 0.7 3. Minimum possible Distance between 2 Level set Points is 75 mm. 4. Accuracy : ± 0.10%, ± 0.25 %, ± 0.5 % on F.S. 5. The switch operates on the principle of magnetic flux coupling with no mechanical connection so that fluid contamination of switch components cannot occur. 4. Ordering Information Information Required to Quote: Material of Construction, Service Medium, Specific Gravity, Max. Pressure & Temperature, Number of Actuating Levels & Their Distance from top of the Connection, Process Connection. Additional Information: Production Capacity: 100 Delivery Time: WEEK Packaging Details: EXPORT WORTHY PACKING

NRG MAKE vibrating fork is a level switch for liquids and is used in tanks, containers and pipelines.As a sturdy replacement of conventional float switch, Elixir offers a variety of built-in featuresnon-existant in floats and other switches, e.g. where materials are sticky, corrosive, agitated,splashing, foaming and having uncertain electrical properties.Elixir vibrating fork is suitablefor hazardous areas, available with explosion-proof housings certified by CMRI , Dhanbad.Features• Less Power Consumption: Less Heat, Long Life• Universal Power Supply: 18 to 55 V DC,90 to 265 V AC on same terminals• Application Temperature Range : up to 200° C• Suitable up to 10,000 cP (Detects all Industrial Fluids)• Compact Size: Less Inventory• Extendable probe length from 68 to 3000 mm• ECTFE coated, polished & hygienic fork• Output: 8.2V Namur, SPDT & DPDT Relay type currentoutput• Calibration Free, independent of material's dielectricpropertiesPrincipleA specially shaped tuning fork is kept vibrating using piezo-electric elements. Typically, thefork vibrates at its natural frequency. The frequency of oscillation for the tuning fork changeswhen immersed in liquids. The change in frequency is detected by the microprocessorleading to a switching decision.Manufacturing Level Instruments & Speed Monitoring SystemsVersion 2.1Grown...to meet challengesELIXIR Microcontrollerbased Vibrating Fork Liquid Level Limit SwitchApprovals CE Marking, RoHS Compliance, IP-67 Marking Additional Information: Production Capacity: 100 Delivery Time: EX STOCK Packaging Details: EXPORT WORTHY PACKING