'simple buoyancy principle'

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 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 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

1. Product Description NRG GLOBAL MAKE Turbine flow meter is used for volumetric total flow and/or flow rate measurement and has a relatively simple working principle. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing. The angular (rotational) velocity of the turbine rotor is directly proportional to the fluid velocity flowing through the turbine. The resulting output is taken by an electrical pickoff(s) mounted on the flow meter body. 2. Product Features 1. Highly sensitive to low flow rates 2. Very accurate over its entire flow range 3. Technical Datasheet 3.1 Material of Construction Enclosure : S.S-304/S.S-316 Rotor : S.S-304 Shaft : Hard Stainless Steel-316 with carbon bush Accuracy (standard installation position): +/- 0.5 OR 1% FSD Repeatability: 0.1% Maximum working Pressure : 6 MPa Fluid & Ambient Temperature : -20º C to 120º C Additional Information: Production Capacity: 100 Delivery Time: WEEK Packaging Details: EXPORT WORTHY PACKING

NRG GLOBAL MAKE Turbine flow meter is used for volumetric total flow and/or flow rate measurement and has a relatively simple working principle. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing. The angular (rotational) velocity of the turbine rotor is directly proportional to the fluid velocity flowing through the turbine. The resulting output is taken by an electrical pickoff(s) mounted on the flow meter body. 2. Product Features 1. Highly sensitive to low flow rates 2. Very accurate over its entire flow range 3. Technical Datasheet 3.1 Material of Construction Enclosure : S.S-304/S.S-316 Rotor : S.S-304 Shaft : Hard Stainless Steel-316 with carbon bush Accuracy (standard installation position): +/- 0.5 OR 1% FSD Repeatability: 0.1% Maximum working Pressure : 6 MPa Fluid & Ambient Temperature : -20º C to 120º C Connection : Threaded (M/F) OR Flanged Additional Information: Production Capacity: 100 Delivery Time: EX STOCK 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 Turbine flow meter is used for volumetric total flow and/or flow rate measurement and has a relatively simple working principle. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing. The angular (rotational) velocity of the turbine rotor is directly proportional to the fluid velocity flowing through the turbine. The resulting output is taken by an electrical pickoff(s) mounted on the flow meter body. 2. Product Features 1. Highly sensitive to low flow rates 2. Very accurate over its entire flow range 3. Technical Datasheet 3.1 Material of Construction Enclosure : S.S-304/S.S-316 Rotor : S.S-304 Shaft : Hard Stainless Steel-316 with carbon bush Accuracy (standard installation position): +/- 0.5 OR 1% FSD Repeatability: 0.1% Maximum working Pressure : 6 MPa Fluid & Ambient Temperature : -20º C to 120º C Connection : Threaded (M/F) OR Flanged

NRG GLOBAL MAKE Turbine flow meter is used for volumetric total flow and/or flow rate measurement and has a relatively simple working principle. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing. The angular (rotational) velocity of the turbine rotor is directly proportional to the fluid velocity flowing through the turbine. The resulting output is taken by an electrical pickoff(s) mounted on the flow meter body. 2. Product Features 1. Highly sensitive to low flow rates 2. Very accurate over its entire flow range 3. Technical Datasheet 3.1 Material of Construction Enclosure : S.S-304/S.S-316 Rotor : S.S-304 Shaft : Hard Stainless Steel-316 with carbon bush Accuracy (standard installation position): +/- 0.5 OR 1% FSD Repeatability: 0.1% Maximum working Pressure : 6 MPa Fluid & Ambient Temperature : -20º C to 120º C Connection : Threaded (M/F) OR Flanged

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.