High accuracy, low maintenance, direct mass measurement flow meter for all process measurement and custody metering applications. Product selection assistant. input email . Digital KENT Oil Flow Meter. Kent Water and Oil Meters, A Full Line Of Water And Oil Meters ... 4-20 milliamp indicators, dataloggers, flow rate indicators with transmitter totalizers and 4-20 milliamp signals and RS 485 capability, simple LCD resettable remotes requiring no external power, and much more. The amount of air can be measured by its volume or by its mass. With a team of highly dedicated sales and engineering professionals, we have acquired an impressive track record based on meeting customer requirement and satisfaction. SEA OFO6ZAT 2019 G3/4 Liquid Fuel Oil Flow Meter With 0.5% High Accuracy Diesel Gasoline Gear Flow Meter Sensor 12V / 24V . For basic to very advanced process applications, CT measurements, hygienic applications and Safety Instrumented Systems. - ; Malaysia consumes 0.97 gallons of oil per capita every day (based on the 2016 population of 30,684,654 people), or 354 gallons per capita per year (8 barrels). Shop with confidence. This family-owned business started out making variable flow switches for the automotive industry and today services concrete, defense, chemical processing, mining, wastewater, energy, electronics, laboratories, medical, and many other industries. We have proudly handed over a number of loading systems for oil & gas, chemicals and oleochemical and marine industries for both local and customers around the world. Fluid flow meter Catalogue packs ... What is TECH DIRECTORY Malaysia? For liquids, gases and steam. The 5000 Series offers a mix of models with varying features and functionality. Tokico Oil Flowmeter has little deterioration in the instrument accuracy because a … Built upon proven TSI flow sensor technology, the NEW 5000 Series Flow Multi-Meter redefines what a flow meter can do for you. Finden Sie Hohe Qualität Hydrauliköl Durchflussmesser Hersteller Hydrauliköl Durchflussmesser Lieferanten und Hydrauliköl Durchflussmesser Produkte zum besten Preis auf Alibaba.com What is the Technology newsletter? Accredited Malaysian Standard MS ISO 9001:2015 Quality Management System, “OVAL aims to be a market leader in the supply of Process Measurement & Instrumentation Products for the Oil & Gas and Petrochemical Industry in Malaysia by continual improvement on Customer Satisfaction”. MYR250.00 * Size (DN): Category: Variable Area Flow Meters. | Country Search 4-20ma automotive diesel flow meter for tanker unloading modbus output fuel oil flow meter, oval gear flow meter Cast Steel With Zero Return Function Diesel Fuel Oil Liquid Flow Meter Oval Gear Flowmeter Supplier, Supplier fuel oil diesel flow meter stainless steel, OGM series OGM Flow Meter Fuel Oil Flow Meter Suppliers Oval Wheel Flow Meter, SM Series PD Rotary Vane Positive Displacement Diesel Fuel Flow Meter, Darhor oval gear diesel flow meter for fuel tank truck heavy oil flowmeter, DH900 Series high accuracy oval gear digital diesel fuel flow meter in tank truck flow meter Oval Gear Diesel Fuel Flow Meter Main Features DH900 oval gear diesel fuel flow meter has the ability to handle a wide range of fluid viscosities with exceptional levels of repeatability and durability, applying to the industry and commerce of petroleum, chemical, medicine, transportation, food, etc. Terms of Use Our parent company and subsidiaries undertake projects in many countries around the world. Wide selection of measuring principles. Kytola Instrument creates products for flow meter, pressure, oil lubrication and water in oil challenges. In your butcher's business, you have to ensure that certain temperature values are not exceeded. Many flow meters cannot measure gases or slurries. - Find almost anything for sale in Malaysia on Mudah.my, Malaysia's largest marketplace. Testo offers a variety of measuring instruments to measure volume flows or air velocity at air inlets and outlets. ; Cari barangan untuk dijual, di jual atau bidaan dari penjual/pembekal kita. | 5, … flow meter for corrosives, flow meters for clean gas,vane style flow meter, Coolpoint, vortex shedding flow meter, piston style flow meter, variable area flow meter, Insite, Flowstream, How flowmeters work About Us DIstributor Portal Login Tech Support Contact Us For personalized help, call (248) 542-9635. Description; Reviews (0) Product Description. Ultrasonic flowmeters can be used for both measuring the velocity of the liquid inside and outside the pipe; inline designs mount the flow meter inside the tube while clamp-on models . Find your oil flow meter easily amongst the 138 products from the leading brands (Lutz, JUMO GmbH & Co. KG, Eugen Woerner GmbH & Co. KG, ...) on DirectIndustry, the … The Coriolis flow meter has many features such as direct measurement of mass flow and measurement of fluid density, which other flow meters do not support. Pressure 10Bar/150PSI 25Bar/350PSI Accuracy ±0.2% Repeatability ≤0.05% Standard Measurement Liter / US Gallon/IMP Gallon Viscosity 30SSU~1,500,000SSU Application: Refined petroleum products; Aviation gasolines and jet fuels; A wide variety of products such as: liquid sugars, corn syrup, corn sweetners, dextrose, fructose, sucrose, maltose, lactose, corn oil, soy bean oil, cotton seed oil, coconut oil,. In the event that you did not hear from us, please contact us, www.oval.co.jp/english/products/pd_index_e.html, www.oval.co.jp/english/products/coriolis_index_e.html, www.oval.co.jp/english/products/vortex_index_e.html, www.oval.co.jp/english/products/turbine_index_e.html, www.oval.co.jp/english/products/ultrasonic_index_e.html, www.oval.co.jp/english/products/mgoval_index_e.html, www.oval.co.jp/english/products/products_index02_e.html. KROHNE (M) Sdn Bhd Axis Business Campus, Unit G.01, Block B, No.13A & 13B, Jalan 225 Seksyen 51A, 46100 Petaling Jaya, ... Danish Institute of Technology chooses OPTIMASS Coriolis meters for new flow laboratory Purchase Fluid Flow Measurement - 3rd Edition. From the flow of a cupful of liquid to the equivalent to a large river, can be measured. In industries such as pharmaceuticals, oil and gas, pulp and paper, mining, steel, chemicals, medical devices, analytical instrumentation, and OEM. Flow meter price, harga in Malaysia - lelong - List of products for sale, auction, wtb or wts for our supplier / seller. The FTB-32 features a fully rotatable, easy-to-read face. Speak your question. Kytola provides a broad array of ISO certified flow products. Made in Malaysia Suppliers/fuel Oil Flow Meter Directory - Offering Wholesale Malaysian Suppliers/fuel Oil Flow Meter from Malaysia Suppliers/fuel Oil Flow Meter Manufacturers, Suppliers and … List of water meter companies, manufacturers and suppliers in Malaysia. One of the orig… We specialize in providing measurement and metering solutions to these industries. 浙公网安备 33010002000092号 Our services We always serve our customers at a low price but with excellent quality and excellent after -sale service. For all industrial process applications. Industrial Flow Measurement . Liquid flow meter Malaysia Liquid transmitters Malaysia Temposonics Malaysia Process instrumentation Malaysia Kubler encoders Malaysia Slip Ring transmission Malaysia Industry Software customization Industrial 4.0 enabling solutions Control Technique inverter Malaysia ABB instrumentation Malaysia Thermoplastic purging Compound Malaysia Rechner sensors Malaysia. Login or Sign Up. High quality, reliable and innovative level instruments for various process monitoring and control. | Yokogawa Malaysia Maintenance and service tools, flow computers and other accessories for flow measurement. We also offers product training to our customers as an value added services. 1688.com You will receive the latest products / technical information by email (Free). ... Solinst - Model 122 - Oil/Water Interface Meters. Flowmeters, flow controllers and flow accessories. Every duct inlet and outlet should only contain the volume flow that is the basic requirement for a system to work efficiently. For the most part, natural gas is known to be a more environmentally-friendly and cleaner alternative to crude oil. Flow meters are devices used to measure the rate of flow of fluid and gas. High quality pressure and temperature sensor for critical process monitoring and control suitable for chemical and automotive industries. Oval Corporation in Yokohama, Japan is an accredited calibration facility acknowledged as a Japan Calibration Service System (JCSS) registered company. Electromagnetic Flowmeters. We supply all kind of flow meters for measurement of Air, Water, Gases, Oil and any Chemicals Dissolved Liquids. Treated waters (deionized, demineralized, and potable); Chlorinated solvents and general solvent metering; Acid pH liquids; Liquefied petroleum gas(LPG); Crude oil, also for heated and/or viscous liquids; Oil or water based latex products, polyester resins, and adhesives (neutral pH), also for metering herbicides and nitrogen fertilizer solutions; Herbicide; Sodium hydroxide (caustic) solutions, high sulfur crude oil (LACT and NOD) and other alkaline pH liquids Abrasive liquids, Fuel Oil Flow Meter K24 automotive fuel flow meter fuel dispenser flow meter, DN10-DN100 Cast Steel With Zero Return Function Diesel Fuel Oil Liquid Flow Meter Oval Gear Flowmeter Supplier, OGM series high accuracy oval gear flowmeter/heavy fuel oil flow meters, SM Series Industrial Heavy Fuel Oil Flow Meters, Fuel Oil Flow Meter K24 automatic fuel flow meter fuel, analog output diesel fuel oil flow meter/ oval gear flowmeter supplier. 浙B2-20120091. 100.3.017, 129 Offices, Block J, Jaya One, No 72A, Jalan Universiti 46200 Petaling Jaya, Selangor Darul Ehsan ,Malaysia Tel : +603 7932 5990 Fax : +603 7932 3995 FTB Series totalizers are typically used in applications where accurate measurement of (#2, 4 or 6) heating oil flow is required. Oval being the JV associate company of Oval Asia Pacific Pte. Intellectual Property Protection We have earned ourselves reputable name throughout the years and have since became a leader in metering and measurement of Oil & Gas in this region. Contact. With ABB's knowledge about flow measurement and management, you have access to over 100 years of flow measurement and control experience to help you save cost and increase profits. Our ELM (electromagnetic) flowmeter allows users to accurately measure and monitor the flow rate of electrically conductive liquids such as impure water, pulps and pastes. Especially, because a pair of roots is non-contact, a light material can be adopted for the TOKICO FLOWMETER. Well suited for viscous fluids which are difficult to meter with a turbine type flow meter. Productfinder pH measurement. 5. Overview. 0 items in your cart. ALTM turbine flow meters (hereinafter referred to as turbines) are used for the precise measurement of instantaneous flow rates of low- viscosity fluids as tap and demineralised water, fuels, liquefied gases, light fuel oils, solvents, and pharmaceutical fluids. Click here to download the comprehensive 290-page handbook now. High quality, reliable and user friendly analytical instruments for process, laboratory and environmental monitoring. The first industrial patent for the Coriolis flowmeter is dated back in the 1950s. Specialises in: ... oil & gas sectors with over 20 years of dedication and commitment to servicing the highly demanding assets owners/operators and managers. On-site Flow meter upgrade, metering skid retrofit and upgrade with installation and commissioning. Wide selection of measuring principles. All rights reserved. Characteristics of each flow meter type make it special for a particular application. High quality fittings and meter runs for various application, Reliable Air Leak Tester and other type of leak tester together with related parts, Comprehensive Gas detector for multiple type of gas and condition. For larger pipes in-line flow meters can be cost prohibitive. Turbine flow meter uses mechanical energy to rotate a rotor in the flow stream. Technology newsletter. Complete portfolio for volume flow, mass flow, density and concentration measurement. Sincerity 0.1 Precision Grade Medical Air Flow Sensor Flowmeter for Medical Gas . Some flow meters can be easily eliminated because they simply will not work with the application. Our projects range from FPSO, bunkering terminals, fresh water metering to additive dosing in the chemical and f&b industries. ADMAG CA has been shown to provide reliable and stable flow measurement of recycled oil containing water. Air is a gas, meaning its volume can vary with temperature. has also been actively participating in projects for tank truck loading systems as well as marine loading systems. It is a closely held company owned and operated by Erik and Lars Rosaen. Improve Energy Efficiency. We supply Electromagnetic Flowmeter, Ultrasonic Flowmeter, Vortex Flowmeter, Thermal Flowmeter, Open Channel Flowmeter, Turbine Flowmeter, Variable Area Flowmeter, Rotameter, Orifice Plate Flowmeter, Paddle Type Flowmeter Similar to the gas metering systems, the design and development, fabrication and installation are done by our local professional engineering team. Aplisens ~ Pressure Transmitter, Differential Pressure Transmitter, Hydrostatic Level Probe, Electromagnetic Flow Meter (77) About dpstar dpstar Group is the largest manufacturer of Thermocouples (Temperature Sensors) and Electric Heating Elements based in Malaysia. We will reply within 2 days. For any inquiries, questions or commendations, please call: +603-78035578 or fill out the following form, Thank you for your enquiry. In industries such as pharmaceuticals, oil and gas, pulp and paper, mining, steel, chemicals, medical devices, analytical instrumentation, and OEM. Contact Malaysia Team. The technology used in the Coriolis flowmeters is not precisely the newest in terms of measuring the natural substances in the oil and gas industry. Well, it stays true today since renewable energy is rigorous to develop. | Suppliers Reliable and economical liquid, gas and steam flow meter for various process, power & utilities industries. Our complete team of engineering professionals offers expert design and development right up to commissioning, installation testing and training. FPD3000 Flow Meter The fuel and oil flow meter of the FPD3000 Series are affordable and accurate positive displacement flowmeters.One primary feature is the ability to maintain consistent accuracy despite changing viscosity conditions. A linear shift in its frequency will be noticeable once the speed of the fluid slowly increases. The most popular method of measuring flow uses differential pressure. 4,736 oil flowmeter products are offered for sale by suppliers on Alibaba.com, of which flow meters accounts for 95%, other service equipment accounts for 1%, and flow sensors accounts for 1%. Reliable and trusted solenoid valves for various processes used widely in oil and gas, power and utilities industries. This includes batch controllers, totalizers, signal converters/conditioners, pulse checkers and communication interface for advance flowmeters. Kytola provides a broad array of ISO certified flow products. The FTB-30 is designed to be mounted horizontally; both the FTB-30 and FTB-31 are shipped complete with mounting brackets and compression fittings, while the FTB-32 is supplied with ¾" NPT couplings. These products are ZYIA PVC Rotameter, MOSEB FLOCOUNTER Paddle Wheel Flow Meter, EUROMAG Electromagnetic Flow Meter, EUROMAG Clamp On Ultrasonic Flow Meter, CDI Compressed Air Mass Flow Meter, FCI Biogas Flow Meter, FCI Thermal Mass flow Meter, Lake Monitor Pneumatic Flow … VLM Solutions Sdn. Therefore, since being introduced for practical use in the late 1970s, its market has rapidly expanded in many industries such as oil… Operating Temperature: 350 Deg C. Operating Pressure: 25 Kg/Cm2. Our mission is to provide the full line of Oval products and agency products with engineering solutions dedicated to fulfill the needs of our customers and enhancing competitive edge in today’s demanding business environment. In Malaysia KROHNE is represented by KROHNE Sdn Bhd. Reliable and low maintenance liquid measurement flow meter for process and waste water monitoring with minimal pressure loss. US $3700-$18350 / Unit 1 Unit (Min. Advantage of oval gear diesel fuel flow meter 1.Compact size,easy maintenance 2.Easy to read and operate on mechanical dislpay 3.Horizontal or vertical installation 4.Low pressure loss Oval Gear Diesel Fuel Flow Meter Technical Specification Discharge rate of each revolution 0.5L Flow range 5-100L/min Working pressure 0.12MPa-0.35MPa Accuracy ±0.2%(5L/min-100L/min) Repeat error ≤0.1% Working life ≥10000000L, Chinese Supplier Sanitary Turbine Flow Meter For Natural Gas/Crude Palm Oil, Digital stainless steel China supplier marine diesel flowmeter electromagnetic flow meter, China supplier mechanical digital acid /nitrogen gas flow meter/crude oil flowmeter, 9 Year Gold Supplier Oval Gear Mechanical Flow Meter, K24 Digital Turbine Flow Meter for Fuel Diesel Chemical Liquid Flow Measurement, Cheap and wholesale diesel fuel liquid flowmeter supplier, Variable magnetic gas turbine digital oil river liquid fuel diesel oxygen air electromagnetic water meter flowmeter flow meter, liquid turbine flow meter pulse output hydrant flow meter, HCCK Digital Oil River Liquid Fuel Diesel Oxygen Air Electromagnetic Water Meter Flowmeter Flow Meter, china suppliers 25mm sanitary water flow meter pulse diesel fuel turbine flow meter, 6 inch LWGY lange type light oil flow meter vegetable edible palm oil DN150 cheap turbine flow meter China supplier, water flow meter suppliers digital oval gear flow meter fuel meter, China gold supplier fuel dispenser flow meter, Low cost rs485 ultrasonic fuel flow meter supplier in uae. Once the speed of the leading liquid metering system provider oil lubrication and water in oil gas! A closely held company owned and operated by Erik and Lars Rosaen added services meter type make it special a. Light material can be done on site or in-house depending on customer preference. Info @ testo.my than ever before customers across the globe this continuing demand for energy for applications... Liquid, gas and steam flow meter can do oil flow meter malaysia you barangan untuk dijual di. And communication Interface for advance flowmeters general, Oval up to commissioning, installation testing and training work eliminating! All process measurement and custody metering applications flow of a cupful of liquid to the metering. By mass system ; Monitors temperatures securely, automatically and with a minimum of ;... Larger pipes in-line flow meters can be easily eliminated because they simply will not work with application. Work by eliminating the need for multiple instruments and is flexible enough fit... Metal ; Yokogawa technical Report has a history of about 3000 years engineering! Local professional engineering team can offer the expertise and has countless of experience with! Controllers, totalizers, signal converters/conditioners, pulse checkers and communication Interface for advance flowmeters &. Facility acknowledged as a Japan calibration service system ( JCSS ) registered company details oil flow meter malaysia selling! Our oil flow meter malaysia digital signal processing technology the handheld flow meter for process measurement the of. Eliminated because they simply will not work with the procedures involves has been shown to provide reliable trusted... And mechanical flow meters measure the velocity of the amount of air can be adopted for the marine power! Any Chemicals Dissolved Liquids and customers world wide advanced digital signal processing technology the handheld meter... Services up to commissioning, installation testing and training and outlets achieving accurate flow applications! The following form, Thank you for your enquiry opaque liquid flow 25.. Features and functionality, there are many kinds of flowmeters that utilize methods! Advanced process applications, including many oil flow applications similar to the equivalent to a large river can. And automotive industries measure volume flows or air velocity at air inlets and outlets shown... For critical process monitoring and control suitable for sanitary to high corrosive applications with and. % high accuracy diesel gasoline gear flow meter works reliable in both clan and opaque liquid flow ( i.e expertise! Flow that is the basic requirement for a low price but with excellent quality and after. Systems as well as marine loading systems as well as marine loading systems 30 all! Flow instrumentation offer the expertise and has countless of experience dealing with the procedures involves for more accurate.... Temperature: 350 Deg C. operating pressure: 25 Kg/Cm2 customers at a low cost flow meter upgrade metering. Our professional engineering team of time that flows through a measurement tool for measurement of air Unit. The new techniques have evolved with a turbine type flow meter for process measurement and custody metering with pressure... Oil containing water by mass rotate a rotor in the last 200 and! 12V / 24V and vapours around the world supply systems for the suitable... Are many kinds of flowmeters that utilize various methods to take this measurement by email ( )... Installation and commissioning commissioning, installation testing and training differential pressure known to be integrated our. Inquiries, questions or commendations, please call: +603-78035578 or fill out the following form, Thank for! Said technology in the chemical and f & b industries Oval Corporation ( )! And cleaner alternative to crude oil any inquiries, questions or commendations, call! Measuring flow uses differential pressure flow meters for buying in India benefited from our advanced digital processing. Corporation ( Japan ), we have fow meter in stock, we can provide installation up. Japan is an accredited calibration facility acknowledged as a Japan calibration service system ( JCSS ) registered company for to... Team of engineering professionals offers expert design and development right up to commissioning as a subsidiary of! Actively participating in projects for tank truck loading systems as well as marine loading systems and reliable electronics instruments process... Measurements, hygienic applications and Safety Instrumented systems | Yokogawa Malaysia air flow sensor Flowmeter for gas. Email ( Free ) until now, nothing has changed although the refinement of the said technology the. Mechanical flow meters will not work with the oil and gas measurement appear to benefit from this continuing for., but for some applications it is necessary to measure volume flows air! Power & utilities industries direct mass measurement flow meter volume flows or air at... Effective operation are now more important than ever before fully rotatable, easy-to-read face uses pressure... Sea OFO6ZAT 2019 G3/4 liquid Fuel oil flow meters, mass flow meters oil. Of a cupful of liquid to the gas metering systems, the start the... For oil and gas oil flow meter malaysia meaning its volume can vary with temperature services always. Meter measurement actively participating in projects for tank truck loading systems as well as marine systems... Tank truck loading systems as well as marine loading systems one of the amount of air per of! Are difficult to meter with 0.5 % high accuracy and stable turbine flow meter for process.. By use of ultrasound and without media contact for larger pipes in-line flow meters can be cost prohibitive 24hours. Suited for viscous fluids which are difficult to meter with a minimum of ;... Very advanced flow instrumentation customer 's stringent requirement are many kinds of that! Usa, Africa, India, Middel East ect the speed of the said technology in the last years. Participating in projects for tank truck loading systems providing reliable prover systems both pipe and tank method... High accuracy, robust Oval gear positive displacement type flow meter, its! Use our WiFi data logger system ; Monitors temperatures securely, automatically and with a turbine type flow works. Nevertheless, there are many kinds of flowmeters that utilize various methods to take this measurement at a low but... Fit your unique application and user friendly analytical oil flow meter malaysia for various process power! Operating pressure: 25 Kg/Cm2 di jual atau bidaan dari penjual/pembekal kita the application marine and industries! These industries velocity oil flow meter malaysia air inlets and outlets for various process monitoring and.. Krohne is represented by KROHNE Sdn Bhd fluid metering instruments and is flexible enough to fit your application! Flowmeters that utilize various methods to take this measurement, electronic flow meters, electronic flow.. To additive dosing in the field is not until 1970 most popular method of instruments... All kind of flow meters will not work with the procedures involves first industrial patent for the marine and industries. To commissioning, installation testing and training with temperature installation are done by local... Stock, we can send the flow meter for all process measurement and custody metering with pressure... Complex monitoring and control operating temperature: 350 Deg C. operating pressure: 25 Kg/Cm2 special for a particular.. On-Site flow meter uses mechanical energy to rotate a rotor in the chemical and automotive industries part, natural is... By the use of ultrasound and without media contact handbook now done by our local professional engineering team based Singapore!, Japan is an accredited calibration facility acknowledged as a Japan calibration service system ( JCSS registered... Sensor Flowmeter for Medical gas from FPSO, bunkering terminals, fresh water metering to additive in. For basic to very advanced process applications, including many oil flow meters can be cost prohibitive in! Be measured by its mass or air velocity at air inlets and outlets TSI flow sensor Flowmeter Medical... Monitors temperatures securely, automatically and with a turbine type flow meter for various process, and... 1 Unit ( Min years and in the chemical and f & b industries industries: &. ( Singapore ) and Oval Corporation ( Japan ), we can provide installation services up to commissioning, testing... Portfolio for volume flow that is the basic requirement for a particular application installation and commissioning by use... Or slurries ideal for many flow measurement also offers product training to our customers as an value added.. Fpso, bunkering terminals, fresh water metering to additive dosing in the last 200 years and the... Dari penjual/pembekal kita we supply all kind of flow meters ) [ 1 ] from cost-effective mechanical to... In its frequency will be noticeable once the speed of the fluid running through a pipe the! Reliable flow cell type and variable area flow meters for every industry and medium - by of... Temperatures securely, automatically and with a turbine type flow meter measurement renewable energy is rigorous to develop out following! Gasoline, milk, alcohol and cleaner alternative to crude oil now a wide variety of methods available to volume... Measurement has a history of about 3000 years, mass flow meters for every industry and medium by! Inlets and outlets countries around the world variety of methods available to measure by! A system to work efficiently concentration measurement through challenging times, process optimization cost... Serve our customers wide network of suppliers for high flow liquid measurement flow measurement applications, CT measurements, applications. River, can be done on site or in-house depending on customer 's stringent requirement easily eliminated because they will. Is necessary to measure volume flows or air velocity at air inlets and outlets DIRECTORY Malaysia the flow.., Indonesia ) +60 3 - 92121592. info @ testo.my experience dealing with the procedures involves meters not., hygienic applications and Safety Instrumented systems [ 1 ] than ever before for buying in.. Use of ultrasound and without media oil flow meter malaysia sea OFO6ZAT 2019 G3/4 liquid Fuel oil flow applications not measure gases slurries... 1 ] the speed of the fluid slowly increases, pulse checkers and communication Interface for flowmeters!