deltaflow product brochure
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Flow Metering for Gas, Steam and Liquid deltaflow made by systec

Metering for Gas, Steam and Liquid The deltaflow is a pitot tube which measures the flow in conduits according to the differential pressure principle. It can be used to meter gases, steams, and liquids under almost any operating condition in many different industries. The deltaflow meters all gaseous media reliably and precisely, including fresh air, preheated air, recycled stack gas, and flue gas before and after wash scrubber, as well as media with an extremely high particulate load (when used with the LSP air purging system), live steam, medium-pressure steam, low-pressure steam and feed...

eltaflow Chemistry and Petrochemistry Water and Wastewater Treatment The deltaflow is also a viable solution in the chemical and petrochemical industries - for metering products, exhaust or flue gasses, or inert or aggressive media. In an endurance test, lasting several months and performed in 1996 at WackerChemie in Burghausen, Germany, the deltaflow proved its durability measuring 100% steam-saturated, aggressive and polluted flue gas. The deltaflow is especially valuable for metering biogas and sewer gas in the water and wastewater treatment industry. The deltaflow proves its reliability...

Economical, Precise, and Versatile Minimal Pressure Loss Results in Minimal Energy Costs Unnecessary pressure loss costs money! In many applications, these losses may add up to several tens of thousands of dollars each year. One decisive advantage a pitot tube has over classic differential pressure elements is its low-impact, streamlined design: it creates virtually no constrictions inside a conduit, resulting in the lowest residual pressure loss compared to traditional primery elements such as orifices or venturis. Pressure loss when using: orifice (upper fig.), Venturi (middle fig.), and...

eltaflow No Measuring Errors Caused by Welded Seams at Probe’s Cross Section Most pitot tubes are constructed of two outer walls and a separating wall welded between the two chambers. These are generally manufactured by welding them in sideways and then manually adjusting them, resulting in production tolerances at the edge to edge width of between 1 and 2 mm. But a production tolerance of as little as 1 mm can result in a measuring error of up to 10% in a conduit measuring 100 mm, and the error can be even greater in conduits of smaller diameter! To solve this problem, systec developed a...

deltaflow Model Series Pipe diameter Better than 1% of the measured value, 0.5% after calibration (optional) weld-in, flanged or screw-in spool piece Sampling range Pressure range Temperature range • 1.0305 (studs only) • 1.4571 (ANSI/ASME 316Ti) (standard) • 1.4828 (309) (high temperature) • 1.4539 (904L), Hastelloy C4, Haynes Alloy (oxidizing media) • 1.5415 (A204) , 1.7380 (A182-F22), 1.7335 (A182-F12), 1.4903 (P91) (boiler steels) • Additional materials available on request Integrated pressure and temperature sensors Weather-proof casing for harsh outdoor applications LSP air purging...

High Pressure Steam, High Pressure Liquids High pressure Gases or Liquids with strong tendency to pollution, Online cleaning Gas Liquid, Humid Gas, Liquid, Steam ball valve stud flange connector Eex / ATEX Emission quantity measurement (on request)) PED 97/23/EC

deltaflow multitask - the patented connecting concept The connecting concept that helps you save time and money A connecting system is needed to transfer the differential pressure to the evaluation instrument (differential pressure transmitter); when using a traditional probe, this connecting system must be adapted to each given application, and this is usually time consuming and expensive. This problem doesn’t exist if you use the patented connecting concept of systec Controls! The deltaflow’s connecting system consists of a head and two universal adapters. These components are identical...

ImproveIT – Installation without straight run requirements Installation without inlet path The ImproveIT database was compiled based on years of experience and thousands of individual calibrations using the deltaflow in situations involving shortened inlet paths. ImproveIT documents the deviations and lists calibration constants for a large number of different installation conditions. This allows us to provide well-substantiated information about the deviations and linearities you can expect in almost any flow disturbance you may encounter. Simply draw a sketch of your installation, and we...

deltaflow Technics Some examples of typic installations deltaflow Installation Position The deltaflow offers several installation and mounting possibilities convenient for your application as, for instance: Liquid: In order to consider proper venting or draining location depends on type of media and orientation of pipe. To meter liquids, the entire probe should be filled with liquid allowing gas bubbles to vent off. To allow this to happen, the unit should be installed with a slight downward slope from the dp transmitter towards the measurement profile. Gas: For gasses, the installation...

eltaflow Calculation Basics The differential pressure method: - A proven metering principle for highest precision The deltaflow’s working principle is the highly precise differential-pressure metering method. The two separated chambers of the deltaflow are provided with pressure sensing holes (dp tappings). These drillings isolate different pressure values in the two chambers: in the upstream one a higher and in the downstream chamber a lower pressure. Therefore between both chambers Flow calculations The resulting differential pressure and flow rates are calculated in the same way as with...

Flow Metering Technology “by systec” deltawave deltawave ultrasonic flow-meters are conceived for flow metering in filled or partially filled conduits as well as in open or closed canals. When installed in thermal power plants, the deltawave is used for the precision flow metering of the cooling water volume and for measuring its temperature. In hydroelectric power plants it controls the water supply or it may be used for leakage control, e. g. in penstocks. Thanks to its high precision, it is admitted for the acceptance test of turbines in compliance with ISO 60041; moreover, it determines...