'basic buoyancy principle'

Float level switches All float operated liquid level controls operate on the basic buoyancy principle which states "the buoyancy force action on an object is equal to the mass of liquid displaced by the object." As a result, floats ride on the liquid surface partially submerged and move the same distance the liquid level moves. Because of this, they are normally used for narrow level differential applications such as high level alarm or low level alarm.

NRG GLOBAL MAKE Displacer type level switches offers the industrial user a wide choice of alarm and control configuration. DLS works on a simple buoyancy principle and is well suited for simple or complex applications, such as forming surging liquids or agitated fluids, and usually costs less than other types of level switches. CONSTRUCTION & OPERATION Operation is based on simple buoyancy principle. As the liquid level rises and progressively immerses the displacer elements, the effective weight suspended on the spring reduces and the consequent length of the spring change is used to provide magnet movement and operate the switch. The spring movement causes the magnetic sleeve to attract a pivoted magnet actuating a switch mechanism located outside the barrier tube. Built-in limit stops, prevent over stroking under level surge conditions. FEATURES: • Wide choice of switching functions • Suitable for large tanks up to 15 meters • Site adjustable switch points • Customized for high temp, high pressure & vaccum applications. • Reliable performance in turbulent liquids even without still pipes. • Easy transportation of longer length switches. • Enclosure : Weather proof-IP-65 Ex-proof-Gr. IIA & IIB or IIC GENERAL SPECIFICATIONS: Enclosure : Cast ALUMINIUM, Weather Proof-IP 65, Cast AL Ex-proof Gr. IIA & IIB or IIC Conduit Connection : ¾ ” ET or ½” NPT Measuring Range : 200 mm~15000 mm Operating Differential : 40±5 mm / Adjustable / 65 ±5 mm Switch Type : Micro switch Switch Contacts : 2 SPDT (2 NO + 2 NC) @ 5A, 230 VAC (Resistive) Switch Action : Bistable Terminals : To suit 1.5 mm2 conductor Flexible Rope : SS304, SS316, PP, PTFE Displacer : SS304, SS316, PP, PTFE Spring Housing : SS316, PP, PTFE Spring Material : SS316, SS316L Process Connection Flanged : MS, SS304, SS316, PP (SS clad), PTFE (SS clad) Perforated still well : MS, SS304, SS316, PP (65 NB) External Cage : MS, SS304, SS316, PP (80 NB) Max. Temperature : 0-200°C (without cooling fins) 0-300°C (with cooling fins) (Contact factory for temperature more than 300°C) Max. Test Pressure : Vaccum to 40 Kg/cm2 (Contact factory for pressure more than 40 Kg/cm2) Min. Sp. Gravity : 0.7 (Contact factory for Sp. Gr. less than 0.7)

NRG GLOBAL MAKE side-mounted float level switch is suitable for liquid level control of open or bearing pressure container in industrial process. When the liquid level reaches to high or low limit, relay contact point can be as signal alarm device or the switch in electronic pump circuit. It is used in water treatment, petrochemical, furnace, shipyard etc. It is widely applicable in the condition of high viscosity, high pressure, high temperature because of it is flexible structure, and it can replace the UQK series products. Working principle To use of liquid buoyancy principle. When the floating ball due to buoyancy and moving up and down, the magnetic reed switch in the junction box will be action when it is influence by the arm end magnetic. The same principle is used in the micro switch device. To use of magnets and magnet micro switch arm end of mutual exclusion movement to push the micro switch action. Product purpose SM series float level switch is suitable for liquid level control of open or bearing pressure container in industrial process. When the liquid level reaches to high or low limit, relay contact point can be as signal alarm device or the switch in electronic pump circuit. Specification Application : Liquids Liquid Density : Above 0.5 – 2.0 Liquid Velocity : Upto 500 cp Design Pressure : Upto 40 Kg/cm² Design Temp : Upto 300°C Connection : Flanged to ASA/BS/DIN Screwed BSP/Screwed NPT Material : SS304/SS304L/SS316/SS316L/PP/HDPE/PVC/PVDF Lined/PTFE Lined Other Materials on request Switch Type : Micro, SDPT, DPDT Form : 1 NO+1NC / 2NO+2NC Rating : 5 Amp, 230 VAC OR 24 VDC Enclosure : W-Proof IP65 / Ex-Proof Additional Information: Production Capacity: 100 Delivery Time: WEEK Packaging Details: EXPORT WORTHY PACKING

NRG GLOBAL INSTRUMENTS MAKE Electromagnetic Flow Meters, simply known as mag flow meter is a volumetric flow meter which is ideally used for waste water applications and other applications that experience low pressure drop and with appropriate liquid conductivity required.The device doesn’t have any moving parts and cannot work with hydrocarbons and distilled water. Mag flow meters are also easy to maintain.Electromagnetic Flow Meters Principle of Magnetic Flow Meter Based on Faraday’s LawMagnetic flow meters works based on Faraday’s Law of Electromagnetic Induction. According to this principle, when a conductive medium passes through a magnetic field B, a voltage E is generated which is proportional to the velocity v of the medium, the density of the magnetic field and the length of the conductor. [E is the voltage generated in a conductor, V is the velocity of the conductor, B is the magnetic field strength and L is the length of the conductor].It is very important that the liquid flow that is to be measured using the magnetic flow meter must be electrically conductive. The Faraday’s Law indicates that the signal voltage (E) is dependent on the average liquid velocity (V), the length of the conductor (D) and the magnetic field strength (B). The magnetic field will thus be established in the cross-section of the tubeBasically when the conductive liquid flows through the magnetic field, voltage is induced. To measure this generated voltage (which is proportional to the velocity of the flowing liquid), two stainless steel electrodes are used which are mounted opposite each other.The two electrodes which are placed inside the flow meter are then connected to an advanced electronic circuit that has the ability to process the signal. The processed signal is fed into the microprocessor that calculates the volumetric flow of the liquid.Electromagnetic Flow Meters Formula:Electromagnetic flow meters use Faraday’s law of electromagnetic induction for making a flow measurement. Faraday’s law states that, whenever a conductor of length ‘l’ moves with a velocity ‘v’ perpendicular to a magnetic field ‘B’, an emf ‘e’ is induced in a mutually perpendicular direction which is given byThus the volume flow rate is proportional to the induced emf. In Practical applications we have to enter the meter constant ‘K’ value in magnetic flow meter which is available in vendor catalog/manual.Applications of Magnetic Flow MetersThis electromagnetic flow meter being non intrusive type, can be used in general for any fluid which is having a reasonable electrical conductivity above 10 microsiemens/cm.Fluids like sand water slurry, coal powder, slurry, sewage, wood pulp, chemicals, water other than distilled water in large pipe lines, hot fluids, high viscous fluids specially in food processing industries, cryogenic fluids can be metered by the electromagnetic flow meter Additional Information: Production Capacity: 100 Delivery Time: EX STOCK Packaging Details: EXPORT WORTHY PACKING

A pressure gauge measures the pressure of a gas or liquid within a system. It monitors the fluid pressure in various applications, such as automotive, aerospace, medical, and manufacturing industries. Measuring the pressure in a system is critical to ensure the consistency of a product and a measure of safety to be aware of leaks or building pressure in a system. Before specifying a pressure gauge, it is important to understand the basic principles of pressure. This article covers how pressure gauges work and how to select one for an application. Additional Information: Production Capacity: 100 Delivery Time: WEEK Packaging Details: EXPORT WORTHY PACKING

Pressure gauges are instruments designed to measure the pressure of media in a system. Measuring the pressure in your system is a critical quality step to ensure consistency of a product and safety check to be aware of leaks or building pressure in a system. Before specifying a gauge, it is important to understand the basic principles of what pressure is. Then the correct pressure gauge can be determined based on selection criteria, to accurately measure the pressure within the system. Even the best measuring equipment produces a certain deviation from the actual value. It is important to know how this measurement accuracy is defined. Digital gauges in comparison with analog ones have higher accuracy. Read our article on digital pressure gauges if you want to learn more about that type. Additional Information: Item Code: pg Production Capacity: Weeek Delivery Time: week Packaging Details: Export Worthy packing

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 Displacer type level switches offers the industrial user a wide choice of alarm and control configuration. DLS works on a simple buoyancy principle and is well suited for simple or complex applications, such as forming surging liquids or agitated fluids, and usually costs less than other types of level switches. CONSTRUCTION & OPERATION Operation is based on simple buoyancy principle. As the liquid level rises and progressively immerses the displacer elements, the effective weight suspended on the spring reduces and the consequent length of the spring change is used to provide magnet movement and operate the switch. The spring movement causes the magnetic sleeve to attract a pivoted magnet actuating a switch mechanism located outside the barrier tube. Built-in limit stops, prevent over stroking under level surge conditions. FEATURES: • Wide choice of switching functions • Suitable for large tanks up to 15 meters • Site adjustable switch points • Customized for high temp, high pressure & vaccum applications. • Reliable performance in turbulent liquids even without still pipes. • Easy transportation of longer length switches. • Enclosure : Weather proof-IP-65 Ex-proof-Gr. IIA & IIB or IIC

NRG offers a series of Reflex level indicators. Designed to measures the level of liquid in reactor tanks. The reflex level gauge is used for the measurement of liquid level for high pressure or high temperature or toxic liquid storage tanks. The reflex level gauge has a single prism glass mounted on one side of the chamber and uses the basic optical principles of light reflection to upgrade the expression of the liquid level in the process tank. In brief, when the light strikes the area of glass covered by the liquid is allow to pass to the interior of the gauge so that the area appears dark (black). Thus the area which is vacant appears to be (silver) and can be distinguished the difference from several feet away. We are the manufacturer of the reflex level gauge in Gujarat India. Specifications Application: Liquids Liquid Chamber (Wetted Part): MS, ASTM A105, SS 304, SS 316, PP Cover Plate (Non Wetted Part): MS, ASTM A105, SS 304, SS 316, PP Design Temperature: Up to 300°C Design Pressure: Up to 70 Kg/cm² C/C Distance: Up to 3000 mm Connection: Flanged to ASA, BS, DIN, Socket Weld, Butt Weld Applications ► High-pressure vessels ► Pressure Vessle ► Boiler control ► Acid waste transportation ► Marine life science tank ► Spray wash liquid soap ► Remediation vacuum tank ► Chemical distributor tank Available Options ► Reflex level indicator with 2 no’s isolation valve and 1 no Drain valve ► Reflex level indicator without isolation and drain valve ► Reflex level indicator with vertical connection ► Reflex level indicator with spring loaded push valve and drain valve. ► Reflex level indicator with frost free arrangement ► Reflex level indicator with high & low level switch