Safetyshielded glass tube are in general use for measuring both liquids and gases. Tansa glass tube rotameter is basically a variable area flow meter. Rotameters industrial process instruments,manufacturer. The wide variety of float weights and meter tubes allows the glass tube flowmeter fgm1190 to be matched exactly to the required flow range. Installation, operation, and maintenance instructions for glass tube variable area meters rotameters isbn 0876643446. In the installation of glass tube rotameters for liquid service, consideration should be given to possible damage from water hammer. Krohne glass tube meters dk464748800 and metal tube meters dk323437 with integrated needle valve are the best fit solution for adjusting, measuring and monitoring min flow alarm in case of interruption the sample flow to all kind of process analysers. It features a clear polycarbonate shield surrounding the glass metering tube.
K500 series glass rotameter consist of a tapered glass tube,both ends bases,and four 8 holding studs,easy installation,thread assembled and equipped with flow control values. A rotameter measures the flow of liquids, gases and steam by using a float inside a conical tube. Rotameters work on the principle of vameters and are used. Rotameters glass tube rotameters exporter from vadodara. Shielded for pressurized systems these rotameters, have heavy wall, precisionbored borosilicate glass metering tubes and are fully shielded against breakage, with end fittings of brass or stainless steel and aluminum side plates. The tube contains a free moving float that rests on the stopper at the base of the tube. Please refer to the flt series for specific ranges of each flow tube float combination.
Rotameter glass tube rotameter wholesale trader from kolkata. The height at which the float rises to equilibrium in the tube is dependent on rate of flow. Glass tube rotameter gtr19 consist of a tapered glass tube mounted vertically in a frame with the small diameter at the bottom and large end up. Metal tubes are used where opaque liquids are used or temperature or pressure requirement is quite high. Rotameter, metal tube rotameter variable area flow meters. Pdf investigation of flow in a rotameter researchgate. The flow metering tube is transparent giving you full insight into the process and position of the float a scale on the outside of the tube indicates the true flow rate. Rotameters are not easily adapted for reading by machine. Variable area flowmeter ariable area flowmeter rotameter. To reassemble, insert bottom float stop into glass tube and push it down with a rod.
Flow measuring instruments, glass tube rotameter, low flow. Effect of float design on the performance of rotameter using computational fluid mechanics rakesh joshi. The drag force for a given fluid and float cross section is a function of flow speed squared only. Glass tube rotameter variable area flow meters brooks instrument. P450 series glass tube rotameter the p450 series glass tube rotameter has a flow range rating of water. Parkers p430 series flow meters feature borosilicate glass tubes with stainless steel frames and horizontal connections and are available with 65 mm and 150 mm scale sizes. Manufacturer of glass tube rotameter glass tube rotameter with screwed connection, glass tube rotameter for ethanol, glass tube rotameter for ethanol in flow range 00.
An introduction to flow measurement with rotameters. The flow measurement is taken by reading the flowrate off the glass tube when the float reaches equilibrium in the tube. Kobold model kdv variable area flowmeter user instructions. This step is not necessary if the scale is etched on the metering tube. The unique design combines the rigidity of an aluminum. Rotameters and purge meters parkers expanded pseries rotameter line is an allnew range of flow meters that provides significantly greater application versatility for industrial applications. Metal tube rotameters rotameter manufacturer chemtrols offers a wide range of variable area flow meters rotameters for various flow measuring applications. It offers cpvc and hastelloy c276 as optional materials of construction, suitable for a wide range of chemical and corrosive applications. The variable area flowmeter is one of the oldest and mature principles in flow measurement with its simple design. Glass and metal tube purgemeters for lowflow applications 1. Versatile removable glass tube 316l ss case and internals. Plastic tubes are also used in some rotameter designs. With a broader range of flow rates available, glass tube rotameters are suitable for a.
Effect of float design on the performance of rotameter. 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 rotameters are offered where general flow measurements are within the limitations imposed by pressure rating of the glass metering tubes. The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The dk32 flowmeter features horizontal connections and a standard bottom or top needle valve. The mt3809 series metal tube variable area flow meters from brooks instrument feature rugged design, improved gasket sealing and lcd displays. Fkm series metal tube rotameters are rugged, versatile and. Installation, operation, and maintenance instructions for.
The float moves freely up and down inside the tapered borosilicate glass with fluid flow from bottom to top. The tube is precision formed of borosilicate glass, and the float is precisely machined from metal, glass or plastic. Nov 18, 2016 the original rotameter yokogawa corporation of america. The ragn rotameter is designed for continuous flow measurement of liquids and gases. Floats typically have sharp, or metering, edges which will point to a specific reading on the scale. The differential pressure across the annulus area is constant and. Glass tube rotameter gas rotameter manufacturer from. Rotameters and industrial rotameters manufactured are of panel mounted types as well as pipe line mounted types. Fluids contact only ptfe, pctfe and borosilicate glass. Resistance to thermal shock, pressure and oxidation is the result of employing borosilicate glass tube bodies that can withstand pressures up to.
In the case of glass tubes, the flow rate at the upper edge of the float is read. Manufacturer of flow measurement rotameter panel mount rotameter, control valve rotameter, gang rotameter and glass rotameter offered by bombay instrument mfg. The float moves through the tapered tube up and down with respect to fluid flow. Glass tube rotameter is basically variable area flowmeter the differential pressure across the annulus area in constant and the flow rate is measured as a function of the annulus area. By pass glass tube rotameter, glass tube rotameter, by pass. As gravity works in a vertical orientation so the tube needs to be vertically oriented. The expanded pseries offering enhances our existing rotameter purge meter product line in glass or metal tube construction or acrylic. Flow measuring rotameter we are a leading manufacturer of acrylic water rotameter, alcohol rotameter, glass tube rotameter, purge rotameter with dp regulator, diesel oil. The basic rotameter is the glass tube indicatingtype. This limits their use in many industries to benign fluids, such as water. The gap between the tube and float is larger at the top to allow a greater flow to pass through the meter. Fl2aa series, multiple tube rotameters browse online.
Position glass tube in frame assembly and begin to turn the. Gt1600 series glass tube va flow meters brooks instrument. Since the area of the flow passage increases as the float moves up the tube, the scale is approximately linear. All the measurement tubes in this series of variable area flowmeters are made of either glass or plastic. Glass tube rotameter glass tube rotameters come in many shapes, sizes and have many options. The fluid flows up through the tube and suspends freely a float.
The differential pressure across the annulus area is constant and the flow rate is measured as a function of the annulus area created by float position. The king instrument 7450 series rotameter is a side plate style meter with 75mm or 150mm borosilicate glass tube and 316l stainless steel or brass connections. For simple and costeffective flow measurement of gases or liquids without auxiliary power. Glass tube rotameters, manufacturer, supplier, mumbai, india. Water hammer is a series of pressure shocks created by a. Glass tube rotameter manufacturers, suppliers, dealers in. Such instrumentation packages are used as selfcontained purge flow meters. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. The float moves freely up and down in the tapered borosilicate glass tube with fluid flow from bottom to top.
A rotameter consists of a tapered tube, typically made of glass, with a float made of ss or ptfe. Ps make high accuracy by pass glass tube rotameter. Measurement principle variable area obtained by the displacement of a float in a conical, borosilicate glass tube. Install the gaskets, seat bushing, and tube adapters 18 float models only. The ragn comes standard with inline 316 stainless steel fittings. In the case of glass and plastic tubes you can simply view the float position to get a reliable. The measuring tube can be made of glass, plastic or metal depending on the application. Inside the tube is the float which is an indicating element, the greater the flow rate, the higher the float rides in the tube. Wholesale trader of rotameter glass tube rotameter, metal tube rotameter, by pass rotameter and purge rotameter offered by chandrika industrial marketing, kolkata, west bengal. Clear glass is used which is highly resistant to thermal shock and chemical action.
Rotameter tubes are manufactured from glass, metal, or plastic. Glass tubes additional to the local indication of flow rate glass tubes allow a visual assessment of the process medium. Flow meters, glass tube rotameter, metal tube rotameters. Glass tube rotameter, glass tube flow meter, glass tube. Install the compression screw with the 532 hex key, turning counter clockwise. Glass tube rotameter spink controls offer an industrail flowmeter used to measure flowrate of liquids and gases. The nixon nfx glass tube variable area flowmeter is available in a full range of lengths and is available scaled for liquid or gas measurement. Flowtech glass tube variable area flow meters rotameters flow measuring instrument are intended for general in line and bypass metering applications i. Rotameter working principle animation instrumentationtools. Eps force on the float of the current flow of the medium.
Each kdv is built specifically for your application. Glass tube rotameter eureka variable area flow meters rotameters work on the principle of variable area. Our range of by pass glass tube rotameter is widely acknowledged for their accuracy, reliability and long service life. With that each instrument can be recalculated to different operating conditions by the optional flow table with calculation documents pt.
Rotameters normally require the use of glass or other transparent material, otherwise the user cannot see the float. Suitable for in line installation with flanged or screwed connections with several options. It is suitable for the small or large capacity flow measuring,i. A rotameter is also a relatively simple device that can be mass manufactured out of cheap materials, allowing for its widespread use. The differentila pressure across the annulus area is constant.
Instruments are one of the leading manufacturers, suppliers and exporters of glass tube rotameter, glass tube flow meter, glass tube rotameter with highlow switches. For higher pressure ratings we offer metal metering rotameter tubes. Ti 1r1a0eh 2 overview rotameter type ramc metal short stroke rotameter rakd mini rotameter ragg housing rotameter. With a broader range of flow rates available, glass tube rotameters are suitable for a variety of liquids and gases. Glass tube rotameters 7910 series features metering tubes are precision formed and annealed borosilicate glass tubes are fluted ribbed or plain taper plain taper tubes use rod pole guided floats classic design, premium quality, heavy duty 304 stainless steel case and covers. The fl2aa series rotameters utilize the interchangeable flt series series 150 mm flow tubes, which provides for maximum flexibility, with 9 different sizes and 5 different floats available. The gt1600 series glass tube va flow meters are a new family of meters with a rugged design for longlasting performance with low and highflow gas and liquid applications where viewing the process is important. These versatile and economical meters are for general use in applications. Instruments are the leading manufacturer,supplier, exporter of by pass glass tube rotameter rotameters in mumbai, india. Tansa glass tube rotameter variable area flowmeter model no. It features a tempered glass measuring tube which is inert to most chemicals.
Rotameter variable area flowmeter yokogawa philippines. Plastic tubes are also used in some rotameter designs due to their lower cost and high impact strength. Manufacturer of rotameter glass tube rotameter, air flow rotameter, acrylic rotameter offered by happy instrument, ahmedabad, gujarat. 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. Click here to download the pdf file for full details. Parkers p430 series glass tube flowmeters deliver unsurpassed performance and value in a wide variety of gas and liquid applications.
Krohne glass tube meters dk464748800 and metal tube meters. Positive tube seating, easy tube removal an external clamp locks the tube in place. They are accurate, reliable and simple to install and maintain. Customised scales match the meter to specific conditions. Variable area flowmeter glass tube variable area flow. Glass tube variable area flow meters rotameters from brooks instrument combine accuracy with. P310 series glass tube rotameter the p310 series flowmeters are an economical stainless steel meter with a molded polysulfone metering tube for lighter duty applications where a case enclosed meter is preferred. If the tube is made of metal the float position is transferred to an outside indicator via a magnetic coupling. Glass tube rotameter is a variable area flow meter. Pdf the flow in a floating element flow meter rotameter was studied with laser. Instonnic glass tube rotameters variable area flow meters rotameters are intended for general in line and bypass metering applications i. Mt3809 series metal tube variable area flow meters brooks.
Other types include glass tube rotameters with stainless steel case, armored rotameters, pvc rotameters and. The metal float is usually made of stainless steel to provide corrosion resistance. Maxiflotm ka series glass tube rotameters are rugged, versatile and accurate variable area va flow. Rotameter glass tube rotameter manufacturer from ahmedabad. The kdv is a high quality glass tube variable area flowmeter. Flowmeters with float series 6001 6002 steam equipments. 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. Glass tube rotameters the basic rotameter is the glass tube indicatingtype. If a needle valve is placed at the inlet or outlet of a rotameter, and a dp regulator controls the pressure difference across this combination, the result is a purgeflow regulator. We will help you find a suitable replacement or one for a new application. Our network of distributors provide the user with fast delivery, widespread parts availability and solid service support.
King instrument 7450 series rotameter rotameters instrumart. 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. The borosilicate glass metering tube has a brightly colored easy to read scale. Oring seals allow for easy disassembly and cleaning. A rotameter is a device that measures the volumetric flow rate of fluid in a closed tube it belongs to a class of meters called variable area meters, which measure flow rate by allowing the crosssectional area the fluid travels through to vary, causing a measurable effect. Rotameters are also called purge meters and variable area flow meters. Applications commonly used in industry to measure the flow for. The tube is made of borosilicate glass, and the float can be manufactured by metal usually stainless steel to prevent corrosion, glass or plastic.
They are accurate, reliable and simple to install and. The 7450 series rotameter has optional valves available, and the ends are pvc or hastelloy c276 construction for greater chemical resistance. Rotameters variable area flow meters yokogawa america. When measuring liquid or gas flow at higher pressures and temperatures than is suitable for plastic, you can achieve accurate flow rates with robust glass tube rotameters variable area flow meters from brooks instrument. It protects tube alignment from pipe strain, makes for easy assembly with minimum number of parts. The three ribs, parallel to the center axis of the meter tube, guide the float over the entire flow range. Glass tube rotameter glass tube rotameter with screwed. Glass tube rotameter variable area flow meters brooks.