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Customized Positive Displacement Flow Meter with Electronic Counter1
Meter for Liquid GasPd MeterVolumetric Flowmeter
Shanghai Yinuo Instrument Co., Ltd.
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Product Description LSZ- Double-Rotator FlowmeterGeneralLSZ- Double-Rotator Flowmeter is the latest & international super-class volumetric-type flowmeter. It is atype of precise instrument measuring and controlling liquid flow in the pipeline, featuring high measurement precision, smooth running, free of pulsation, low noise, long service life and excellent adaptability to viscosity etc.. Therefore, the product has been widely used in various fields such as petroleum, chemical, metallurgy, electric power, shipping, traffic, dock, mine, thermal power, and foodstuff industries etc.. It isespecially suitable for commercial trade measurement for crude oil, high condensation oil, crude oil with high water content, petroleum products, foodstuff and chemical solutions as well as measuring management and control of engineering automation. The codes and characters displayed on the flowmeter can be directly read locally. The photo-electric pulse converter equipped can output electric pulse(current) signals to the displaying instrument and computer for handling. Thus, the flow in the pipeline can be remotely controlled. PrincipleThe measuring chamber of the double-rotator flowmeter consists of interior casing, a pair of helix rotators and top & bottom cover plates. These formed a cavity with known volume which can be used as the measuring unit for the flowmeter. The rotator of the flowmeter rotates under the tiny pressure difference between the inlet and outlet and continually sends the liquid at inlet to the outlet after cavitymeasurement(See Fig.2). The rotator transmits the rotating numbers to the counter by means of sealedcoupling and driving system so that the total volume of the liquid passing the flowmeter can be directlydisplayed.Picture 2: The Principle of LSZ- Flowmeter Housing (Outer Case)RotatorNote: Double cases for DN50-400LSZ- Double-Rotator Flowmeter is a positive displacement meter utilized in the most demanding applications requiring accuracy, long life and ruggedness. It features two precisely machined rotating members known as helical rotors which rotate and mesh within the meter's interior housing in order to form a measuring chamber of known volume which may be used to accurately determine volumetric flow rate as a function of the rotors' velocity. As liquid enters the intake of the measurement element, two finely timed rotors divide the liquid into precise segments of known volume and return those segments to the flowing stream. During this transition, the rotation of the two rotors is directly proportional to volumetric throughput. Volume indication is determined by mechanical output gearing leading to electronic or mechanical registration devicesMain Technical Parameters Table:1Nominal Dia. (mm)8~400Accuracy ±0.1%, ±0.2% and ±0.5%Pressure loss0~1000mPa.s<80Kpa 1000~20000mPa.2<150KPaNominal pressure1.6, 2.5, 4.0, 6.4 MPa Temperature range-20°C ~ +80°C +80°C ~ +150°C +150°C ~ +250°C Media viscosity0~20000mPa.s Ambient temperature-40°C ~ +70°CConnected flangeCan be custom-madePhotoelectric pulse(current)converterExd II CT6(Excluding acetylene)Electronic meterhead Exd II CT2-T6Range of Flow For Accuracy: 0.5% and 0.2% Table.2 NominalDia.(mm)Flow range m3/hPulse equivalent liter/pulse0.32-0.8mPa.s0.8-2mPa.s2-5mPa.s5-400mPa.s400-2000mPa.s2000-20000mPa.sGasoline/ liquefied gasKeroseneLight dieselCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content & super-high viscosity liquid0.5%0.2%0.5%0.2%0.5%0.2%0.5%0.2%0.5%0.2%0.5%0.2%150.6-3 0.4-4 0.4-4 0.4-4 0.3-2.4 0.3-2.4 0.001253-8 1.5-10 1-10 1-10 1-8 1-6 0.01 408-208-202.7-225.5-222.5-254.4-222.5-254.4-222.1-184.2-181.5-123-12509-3615-364.5-369-364-407.2-364-407.2-362.8-246-242.2-184.5-188020-8032-8010-8020-809-9016-809-9016-806.5-5614-565-4010-40 0.110025-10040-10013-10025-10012-12020-10012-12020-1008.5-7218-726.5-5414-5415055-22588-22031-25057-22525-25044-22025-25044-22018-15038-15012-10025-10020090-360150-36050-40090-36040-40072-36040-40072-36028-24053-21020-16040-160250135-540180-54068-540135-54060-600108-54060-600108-54042-36090-36030-24060-240300220-900300-900112-900225-900100-1000180-900100-1000180-90070-600150-60054-450113-450400400-1600550-1600200-1600400-1600180-1800320-1600180-800320-1600130-1100275-110090-750180-750Double-Rotator FlowmeterAccuracy: 0.1% Table.3 NominalDia.(mm)Flow range m3/hPulse equivalent liter/pulse0.32-2 mPa.s 2-5 mPa.s5-50mPa.s 500-400 mPa.s400-2000 mPa.s2000-20000 mPa.sGasoline/ liquefied gasKeroseneLight dieselCrude oil,heavy oilHi-viscosityLiquidLiquid with high water content & super-high viscosity liquid4011-229-227.5-227.5-227.5-224-123.3-100.0015018-3614.4-3612-3612-3612-367.5-226-180.018040-8032-8026.7-8026.7-8026.7-10016-4813-4010050-10040-10034-10034-10034-10024-7218-54150115-22090-22073-22073-22073-22040-12030-900.1200180-360144-360120-360120-360120-36060-18050-150250270-540216-540180-540180-540180-540100-30060-180300450-900360-900300-900300-900300-900200-600150-450400800-1600640-1600530-1600530-1600530-1600400-1200300-900Double-Rotator Flowmeter-(Electron Meter head)Accuracy: 0.5%, 0.2% Table. 4 NominalDia.(mm)Flow range m3/hPulse equivalent liter/pulse0.32-0.8mPa.s0.8-2mPa.s2-5mPa.s5-4mPa.s400-2000mPa.s2000-20000mPa.sGasoline/ liquefied gasKeroseneLight dieselCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content & super-high viscosity liquid0.50.20.50.20.50.20.50.20.50.20.50.20.0180.06-0.30.10-0.30.05-0.30.07-0.30.03-0.30.06-0.30.03-0.30.06-0.30.03-0.270.06-0.270.03-0.240.06-0.2415A0.2-0.80.27-0.80.1-10.2-10.1-1.50.1-10.1-1.50.1-10.1-0.80.16-0.80.08-0.70.15-0.715B0.25-10.33-10.25-1.50.25-10.25-30.3-30.3-30.4-30.1-1.50.2-1.50.1-1.20.2-1.2251.5-62-61.2-61.5-60.6-101.2-100.6-101.2-100.6-61.2-60.6-51.2-50.1Double-Rotator Flowmeter-St. steel (-20°C ~ +80°C)Accuracy: 0.5% and 0.2% Table.5 NominalDia.(mm)Range of flow m3/hPulse equivalent liter/pulse0.32-0.8 mPa.s0.8-2 mPa.s2-5 mPa.s5-400 mPa.s400-2000 mPa.s2000-20000 mPa.sGasoline/ liquefied gasKeroseneLight diesel, dieselCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content & super-high viscosity liquid0.50.20.50.20.50.20.50.20.50.20.50.2150.75-3 0.75-3 0.6-3 0.6-3 0.6-3 0.5-2.5 0.001252-8 2-8 1.6-8 1.6-8 1.2-6 1-5 406-248-246-248-244.8-246-244.8-246-243.6-184-162.4-122.5-100.01509-3612-369-3612-367.2-369-367.2-369-364.8-245.5-223.6-184-168020-8027-8020-8027-8016-8020-8016-8020-8012-5612-488-409-360.110025-10034-10025-10034-10020-10025-10020-10025-10015-7515-6011-5411-4515055-22075-22055-22075-22045-22055-22045-22055-22030-15035-13520-10023-9020090-360120-36090-360120-36072-36090-36072-36090-36043-21050-20032-16038-150250135-540180-540135-540180-540108-540135-540108-540135-54072-36090-36048-24060-240300225-900300-900225-900300-900180-900225-900180-900225-900120-600150-60090-450113-450Double-Rotator Flowmeter-St. steel high temp. type (+80°C ~ +150°C)Accuracy: 0.5, 0.2 Table.6NominalDia.(mm)Range of flow m3/hPulse equivalent liter/pulse2-5 mPa.s5-50 mPa.s50-400 mPa.s400-2000 mPa.s2000-20000 mPa.sLight dieselCrude oil, heavy oilCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content& super-high viscosity liquid0.50.20.50.20.50.20.50.20.50.2405.6-22.57-205.6-22.57-205.6-22.57-204-154-123-123.5-100.01509-3610-329-3610-329-3610-324.5-227-204.5-186-188020-8025-7520-8025-7520-8025-7512-4813-409-3610-30 0.110025-10030-9025-10030-9025-10030-9015-6017-5011-4514-4015045-22075-22045-22075-22045-22075-22035-13534-10023-9027-8020090-360120-36090-360120-36090-360120-36050-20054-16038-15043-130250135-540180-540135-540180-540135-540180-54090-360120-36060-24080-240300225-900300-900225-900300-900225-900300-900150-600200-600113-450150-450Double-Rotator Flowmeter-St. steel high temp. type (+150°C ~ +250°C)Accuracy: 0.5% and 0.2% Table.7 NominalDia.(mm)Range of flow m3/hPulse equivalent liter/pulse2-5 mPa.s5-50 mPa.s50-400 mPa.s400-2000 mPa.s2000-20000 mPa.sLight dieselCrude oil, heavy oilCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content& super-high viscosity liquid0.50.20.50.20.50.20.50.20.50.2407.5-22.510-207.5-22.510-207.5-22.510-205-156-124-125-100.015012-3616-3212-3616-3212-3616-327.5-22.510-206-189-188026.7-8035-7526.7-8035-7526.7-8035-7516-4820-4012-3615-30 0.110034-10045-9034-10045-9034-10045-9020-6025-5015-4520-4015075-220110-22075-220110-22075-220110-22045-13550-10030-9040-80200120-360180-360120-360180-360120-360180-36065-20080-16050-15065-130 Double-Rotator Flowmeter-Carbon steel high temp. type (+150°C ~ +250°C) Accuracy: 0.5, 0.2 Table.8 NominalDia.(mm)Range of flow m3/hPulse equivalent liter/pulse2-5 mPa.s5-50 mPa.s50-400 mPa.s400-2000 mPa.s2000-20000 mPa.sLight dieselCrude oil, heavy oilCrude oil, heavy oilHi-viscosityLiquidLiquid with high water content& super-high viscosity liquid0.50.20.50.20.50.20.50.20.50.2404.5-22.55.6-22.54.5-22.55.6-22.54.5-22.55.6-22.54.2-185-153-124-120.01507.2-369-367.2-369-367.2-369-366-247.5-22.54.5-185.5-17.58016-8020-8016-8020-8016-8020-8014-5616-4810-4012-360.110020-10025-10020-10025-10020-10025-10018-7220-6014-5416-4815045-22055-22045-22055-22045-22055-22038-15045-13525-10030-9020072-36090-36072-36090-36072-36090-36053-21065-20040-16050-150250108-540135-540108-540135-540108-540135-54072-36090-36060-24080-240300180-900225-900180-900225-900180-900225-900120-600150-600113-450150-450Note: The flowmeter is also suitable for interim measurement during installing/uninstalling and ship installing. 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