Flow Level Pressure New Universal Ultrasonic Gas Flowmeter


KROHNE, Inc. (USA) introduces its OPTISONIC 7300 universal ultrasonic gas fl owmeter for process gas applications. KROHNE is completing its portfolio of gas meters, ranging from compressed air to custody transfer applications for natural gas. The OPTISONIC 7300 provides an economic solution for gas fl ow measurement in process and auxiliary measurements in oil and gas refi neries, the chemical and the petrochemical industry and is the measurement of choice for non custody transfer natural gas applications. It also provides benefi ts to many other applications such as (compressed) air, mixed gas, steam or fl ue gas.


With the OPTISONIC 7300, process gas fl ows are always under control. The OPTISONIC 7300 is a 2-beam ultrasonic fl owmeter that provides excellent long term measurement stability and repeatability. It delivers high performance over a wide fl ow range: it measures bi-directional from ± 30 m/s (± 90 ft/s) with an accuracy of 1% of the measuring range. The OPTISONIC 7300 can be calibrated either dry or by using air or natural gas. As standard, it uses titanium transducers which are better focused, equalising process fl uctuations and avoiding acoustic feedback; stainless steel transducers are available on request. Built for long-term use, the OPTISONIC 7300 features a maintenance free full bore fl ow sensor and an overall sturdy and robust construction with no cables or sensitive parts exposed. The maintenance free design with no moving parts in the fl ow sensor and the wide range of applications make using the device particularly cost-effective.


In many applications process gas volume is required at standard conditions.


The OPTISONIC 7300 provides calculation to standard conditions by using the input of temperature and pressure sensors which can be directly connected to the device. The electronics also include diagnostics to validate the functions of the fl owmeter and the process. Modbus, FOUNDATION fi eldbus and HART are included for fi eld communication.


New Digital Output Communications for Transmitter


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Magnetrol (Belgium) announces the release of the Eclipse Model 706 transmitter with Foundation fi eldbus digital output communications. This is the fi rst guided wave radar (GWR) transmitter to pass the Fieldbus Foundation testing using the latest Foundation fi eldbus interoperability test kit ITK 6.1.1. This device offers all of the advantages of the standard 4-20 mA (HART) ECLIPSE Model 706, such as: Improved Signal to Noise Ratio (SNR), Improved diagnostics (meets NAMUR NE 107), and a Full complement of Overfi ll-capable probes.


This new ECLIPSE Model 706 transmitter will contain the following Function Blocks: (1) Resource Block (RB), (3) Transducer Blocks (TB), (8) Analog Input Blocks (AI), (2) PID Blocks, (1) Arithmetic Block (AR), (1) Input Selector (IS), (1) Signal Characterizer Block (SC), and (1) Integrator Block (IT).


With this release, a new Model 706 Foundation fi eldbus DTM is also available on the Magnetrol website. This DTM will offer all of the new features of the existing Model 706 Hart DTM.


New Rugged High Pressure Flowmeter


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Titan Enterprises has introduced a new ruggedized IP67 / NEMA 4 compliant version of its OG2 fl owmeter for metering viscous fl uids, such as hydraulic oils used in heavy machinery, at pressures of up to 700 bar and temperatures up to 150°C. Manufactured in durable 316 stainless steel - the compact Titan 700 bar OG2 Special fl owmeter uniquely combines high performance with a low cost of ownership. With a standard fl ow range from 0.03 to 4.0 litres / minute on 30Cstk oil the new fl owmeter is able to routinely achieve outstanding accuracy (0.5%) and repeatability (0.1%). Combining robust design, durable construction materials and proven technology ensures the Titan 700 bar OG2 Special fl owmeter will provide reliable, accurate operation over an extended product lifetime.


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Flotech Performance Systems (UK) manufacture specialist solutions for the storage, transfer and distribution of liquid and gas products including design, manufacture, installation and on-site support from their facility in Fareham, Hampshire. Among the wide range of systems they offer are additive and dye injection skids which are used on petroleum and chemical applications. These vary in scope from injection hardware skids through to full turnkey systems designed to meet individual customer requirements and can incorporate features such as additive storage, secondary containment pipework, pumps and pump control. For many additive applications, the primary function of the pumps is to ensure that they generate suffi cient differential pressure for the additive to be injected effi ciently and smoothly into the main process line. Further details at: www.FlotechPS.com


In most installations the operation of the pump and how it is controlled is crucial to the overall performance of the skid. Duty / standby pump systems will be controlled to provide alternate operation and to also start the standby pump should the duty pump fail to maintain the required differential pressure. Depending on the application, they may need to cover fl ow ranges up to 160 lit/min and differential pressures as high as 16 bar. Also in many situations the pumps need to be certifi ed for use in ATEX hazardous locations.


The pumps perform a vital role on these skids and must be able to cope with the challenges of handling high differential pressures, even when pumping low viscosity liquids.


For this reason Flotech Performance Systems have used Viking SG Series External Gear pumps on many applications.


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Supplied by Michael Smith Engineers Ltd, the UK’s leading pump specialists, Viking’s SG range of spur gear design external gear pumps are ideally suited to the demands of Flotech’s injection skids as they are able to pump low volumes of liquid at high differential pressures. As a consequence they provide a smooth, accurate output which can be easily monitored and adjusted, resulting in process consistency without wastage. Richard Harris, Technical Director at Flotech Performance Systems confi rmed, “Here at Flotech we have enjoyed and appreciated working with Michael Smith Engineers for many years. The Viking gear pumps deliver the performance we require for our additive and injection skids”. He concluded, “With a very good product portfolio and excellent customer service Michael Smith Engineers are often our fi rst port of call”.


Viking SG Series pumps are designed to ensure reliability in challenging high pressure, low capacity applications as illustrated by their performance over many years on Flotech’s additive and injection skids. As seal leakage is the primary cause of pump downtime, Flotech often specify their SG Series external gear pumps to be supplied with leak-free magnetic couplings. Viking SG pumps are available in 29 sizes for capacities up to 45 m3 /hr at differential pressures to 172 bar and operate on liquids with a viscosity range of 1.0 to 250,000 cSt. Materials of construction are ductile iron or cast iron and they can be supplied in a choice of lip seal, mechanical seal or mag-drive options.


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Pumps Handle the Pressure and Help to Inject Consistency into Additive Process


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