An introduction to flow measurement with rotameters. Kdv high accuracy glass tube rotameter subject to change without prior notice. Principle the differential pressure across the annulus area is constant and the flow rate is measured as a function of the annulus area. The variable area flowmeter is one of the oldest and mature principles in flow measurement with its simple design. Safetyshielded glass tube are in general use for measuring both liquids and gases. These meters are particularly suited for purge applications. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. Glass tube rotameter tansa glass tube rotameter is a variable area flow meter.
Vdivde 35 k tube 75 mm 4 for sphere 6 m tube 150 mm 2. Tansa glass tube rotameter is basically a variable area flow meter. In the case of glass tubes, the flow rate at the upper edge of the float is read on the tube scale or an attached scale f1. Since this measuring method is purely mechanic, it as simple as it is reliable. Clear glass is used which is highly resistant to thermal shock and chemical action. Low flow rotameter tiny glass tube rotameter manufacturer. Our range of by pass glass tube rotameter is widely acknowledged for their accuracy, reliability and long service life. Dfv10a4500 3us va master indicating flowrator meters. The most common size is a glass tube rotameter with in 6 mm connections, a. The float moves through the tapered tube up and down with respect to fluid flow.
Maxiflotm glass tube rotameter kr 1 overview maxiflotm ka series glass tube rotameters are rugged, versatile and accurate variable area va flow meter offering 2. Glass tube rotameter gas rotameter manufacturer from vadodara. We stock a comprehensive range standard scales for air, water and. The float moves freely up and down in the tapered borosilicate glass tube with fluid flow from bottom to top. Glass tube rotameter it operates on the principle of variable area the fluid in the glass tube raises the float in the taper tube increasing the area of passage of fluid. Metal tubes are used where opaque liquids are used or temperature or pressure requirement is. The differential pressure across the annulus area is constant and. Glass tube rotameter gas rotameter manufacturer from. By pass glass tube rotameter, glass tube rotameter, by pass. The flow measurement is taken by reading the flowrate off the glass tube when the float reaches equilibrium in the tube. The fluid passes through the metering tube from bottom to top and consequently needs to be. Since the area of the flow passage increases as the float moves up. Kobold model kdv variable area flowmeter user instructions. The conical glass metering tube has a free rotating float.
Glass tube rotameter page 8 scale 100 lph jasanz an iso 9001. Glass tube variable area flow meters rotameter type exstock. A rotameter consists of a tapered tube, typically made of glass with a float, made either of anodized aluminum or a ceramic, actually a shaped weight, inside that is pushed up by the drag force of the flow and pulled down by gravity. A rotameter consists of a tapered tube, typically made of glass with a float, made either of anodized aluminum or a ceramic, actually a shaped weight, inside that is pushed up by the drag force of the flow. The base configuration uses a borosilicate glass tube installed in an aluminum frame with 316ss end blocks, adaptors, and valve.
Glass flowmeters, borosilicate glass, kinglass, tempered glass. Low flow rotameter offering you a complete choice of products which include low flow rotameter, tiny glass tube rotameter, purge glass tube rotameter, low flow rotameters, principle rotameter and. The flow measurement is taken by reading the flowrate off the glass tube. The wide variety of float weights and meter tubes allows the glass tube flowmeter fgm1190 to be matched exactly to the required flow range. It is an instrument used to measure flow rate of liquids and gases and are commonly used for flow measurement. Features industrial and sanitary designs body sizes 12 through 2 reliable, time proven glass tube design flanged, threaded or triclamp fittings 1. Seals in the meter can be either oring or packing gland type to suit the application. Tansa glass tube rotameter variable area flowmeter model no. Resistance to thermal shock, pressure and oxidation is the result of employing borosilicate. Rotameter variable area flowmeter yokogawa electric. Flowtech glass tube variable area flow meters rotameters flow measuring instrument are intended for general in line and bypass metering applications i. Both 65 mm and 150 mm scales, borosilicate glass tube models feature all stainless steel frame and horizontal connections at a less expensive price than competitive products. It is recommended that all glass tube rotameter installations incorporate the use.
Its based on simple and easytounderstand flow measuring principle but is versatile in the types of fluid it. With a broader range of flow rates available, glass tube rotameters are suitable for a variety of liquids and gases. Eps to avoid of electrostatic charging at gas measurement which move the float to the tube wall the ltubes are antistatic. They are accurate, reliable and simple to install and maintain. Flang glasstube purge meters low flow meters armored purge meters directview flowmeters armored flowmeters glass tube vareameters straightthrough vareameters bypass. The tube is made of borosilicate glass, and the float can be manufactured by metal usually stainless steel to prevent corrosion, glass or plastic. This glass tube meter is ideal for a variety of gas and liquid applications. Glass tube rotameter spink controls offer an industrail flowmeter used to measure flowrate of liquids and gases. The most common size is a glass tube rotameter with in 6 mm connections, a range of 0. Abb series 10a4600 glass tube rotameter with pvc end fittings.
The differential pressure across the annulus area is constant. The fluid passes through the metering tube from bottom to top and consequently needs to be installed vertically with flow direction upwards. Features industrial and sanitary designs body sizes 12 through 2 reliable, time proven glass tube design flanged. Gtr 500 operating principle standard features we also manufacture glass tube, purge type,acrylic body, by pass. Abb series 10a4600 is a glass tube rotameter variable area flow meter similar to the 10a4500 model but with pvc end fittings, with the option of stainless steel, tantalum and ptfe or pvc coated floats. Maxiflotm glass tube rotameter 4 kr model overview model code description remarks pipe sizes ka baseline glass tube variable area flow meter rotameter 15mm 12 100mm 4 kb glass tube rotameter without float guide rod 10mm 38 50mm 2 kc glass tube rotameter with orifice plate at the inlet 65mm 212 200mm 8. Since the area of the flow passage increases as the float moves up the tube, the scale is approximately linear. Glass tube va flowmeter rotameter type a range of traditional panel mounting flow meters with inline or rear facing connections. Glass tube rotameter variable area flow meters brooks. The float moves up in proportion to the rate of flow of fluid and get stabilized when the weight of the float is balanced by the upward hydraulic force. Abb series 10a4600 is a glass tube rotameter variable area flow meter similar to the 10a4500 model but with pvc end fittings, with the. The greater the flow, the higher the float is raised. Glass tube variable area flowmeter purgemaster fgm6100 purgemaster fgm6100 flowmeters are low capacity variable area flowmeters for both liquid and gas with an excellent selection of material and scale lengths in a single product family design. The height at which the float rises to equilibrium in the tube is dependent on rate of flow.
Indicating flowrator meters the abb series va master flowrator meter is a glass tube variablearea flowmeter providing visual indication of flow rate over a 1212 to 1 range on a linear scale. Metaltube type vertical measures flow through any large 4% 1 in. This step is not necessary if the scale is etched on the metering tube. It is recommended that all glass tube rotameter installations incorporate the use of a bypass arrangement for either liquid or gas service as illustrate in fig. Installation, operation, and maintenance instructions for. Acrylic crystal body rotameter crystal body rotameter. Manufacturers of glass tube rotameter in india scientific. Rotameters variable area flow meters yokogawa america.
Vdivde 35 ktube 75 mm 4 for sphere 6 mtube 150 mm 2. Glass tube rotameter, glass tube flow meter, glass tube. The basic rotameter is the glass tube indicatingtype. Glass rotameter the rotameter ragn is designed for continuous flow measurement of liquids and gases. Overview rotameter type ramc metal short stroke rotameter rakd mini rotameter ragg housing rotameter measurable flow rates water 20c min. Options for rotameter float materials and designs extend flow ranges for different fluids within a given rotameter tube design. The gap between the tube and float is larger at the top to allow a greater flow to pass through the meter. Variable area flowmeter glass tube variable area flow. The drag force for a given fluid and float cross section is a function of flow speed squared only. Thie short rotameter ragk is designed for measurement of liquids and gases. Glass tube variable area flowmeter purgemaster fgm6100 purgemaster fgm6100 flowmeters are low capacity variable area flowmeters for both liquid and gas with an excellent selection of material and. A rotameter measures the flow of liquids, gases and steam by using a float inside a conical tube.
A rotameter consists of a tapered tube, typically made of glass, with a float made of ss or ptfe. The conical glass metering tube includes a free rotating float which provides self stabilization. With either type of seal, the glass meter tube can be. The tube is made of borosilicate glass, and the float can be manufactured by metal usually stainless steel to. Glass tube rotameter, rotameters, manufacturer, supplier. Matering tube body of rotameter body of dp regulator connections inter connecting tube for rotameter and dp regulator needle valve packing borosilicate glass 304ss 1 brass plated 1 carbon. As gravity works in a vertical orientation so the tube needs to be vertically oriented. Floats typically have sharp, or metering, edges which will point to a specific reading on the scale.