ATWY Liquid Turbine Flow Meter for Oil and Water

Turbine flowmeter is a kind of speed instrument, which has high precision, good repeatability, simple structure, high pressure resistance, and measurement range

It has the advantages of circumference width, small size, light weight, small pressure loss, long life, simple operation and convenient maintenance, and is used to measure the volume flow and accumulation of low viscosity, non-corrosive and clean liquids in closed pipelines. It can be widely used in petroleum, chemical, metallurgy, organic liquid, inorganic liquid, liquefied gas, city gas pipeline network, pharmaceutical, food, papermaking and other industries.

  • Hard alloy bearing thrust type sensor,guarantee precision, improve wear resistance performance
  • Simple and firm structure, easy for installation and dismantling
  • Wide measuring range, low flow velocity workable
  • Small pressure loss, fine repeat ability, high precision
  • High resistance to electromagnetic interference
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Introduction

ATWY turbine flow meter consists of turbine flow sensor and display instrument and it is made by us using foreign state-of-the-art technologies, which is an ideal gauge for measuring of liquid flow.

The flow meter is characterized by simple structure, high precision and easy installation and repair. the product can be used in a wide range of industries, including oil industry, chemical industry, metallurgy, water supply, paper-making, environment protection and food industry.

It is applicable in closed pipes to measure flow of liquid which will not erode stainless steel (1Cr18Ni9Ti), 2Cr13, Al2O3 and hard alloy and is free of impurities such as fiber and granules. if this product is used in association with display instruments with special functions, it can be used for purpose of automatic definite quantity control and alarming in case of excessive amount.

Working Principle

When liquid flows through the sensor, the impulse of fluid will provide the blade with a rotation moment as there is an angle between the blade of impeller and the flow direction. the blade will rotate as the friction moment and the fluid resistance are overcome and it will reach a stable speed when the moments are at balance.

Under certain conditions, the rotation speed of blade will be in direct proportion to the flow velocity. due to the magnetic conductivity of blade, when located in the magnetic field generated by signal detector (made of permanent magnet steel and coils), the rotating blade will cut the magnetic lines and periodically change the flux through the coil, thereby inducing electrical impulse signals at both ends of the coil. the induced signals, after amplified and rectified by amplifier, will form a continuous rectangular impulse wave with certain amplitude which may be remotely transmitted to display                                                                            instrument indicating the instant flow and the cumulative flow of fluid.

 

 

Features

  • High accuracy, generally up to ±1%R, ± 0.5%R, high-precision type up to ±0.2%R;
  • Good repeatability, short-term repeatability can reach 0.05%~0.2%, it is due to good repeatability, such as frequent calibration or online
  • Calibration can obtain extremely high accuracy, and it is the preferred flow meter in legal-for-trade settlement;
  • Output pulse frequency signal, suitable for total measurement and computer connection, no zero drift, strong anti-interference ability;
  • The original pulse frequency range (10Hz~1.5KHz), the signal resolution is strong;
  • Hard alloy bearing thrust type sensor,guarantee precision, improve wear resistance performance
  • Simple and firm structure, easy for installation and dismantling
  • Wide measuring range 10:1~20:1, low flow velocity workable
  • Small pressure loss, fine repeat ability, high precision
  • High resistance to electromagnetic interference

Specification

Measured mediumNo impurities, low viscosity, no strong corrosive liquid
Enforce standardTurbine Flow Sensor (JB/T9246-1999)
Verification RegulationsTurbine Flow Meter (JJG1037-2008)
Instrument caliber and connection methodFlange connection typeDN15–DN200
Threaded connection typeDN4–DN50
Clamp-on connection typeDN4–DN200
 

Flange standard

Conventional standardsGB/T9113-2000
Other criteriaInternational Pipe Flange StandardGerman standard DIN, American standard ANSI, Japanese standard JIS
Domestic pipe flange standardsStandards of the Ministry of Chemical Industry and Standards of the Ministry of Machinery
Thread specificationsRegular specificationsInch pipe thread (male)
Other specificationsFemale, spherical, NPT, etc
Accuracy class and corresponding linearityAccuracy class1.00.50.2 (customized)
Linearity≤0.15%≤0.1%≤0.03%
Turndown ratio10:1—20:1
 

Verification conditions

Verification deviceStandard table method liquid flow verification device
Static mass method liquid flow verification device
Environmental conditionsAmbient temperature20℃
relative humidity60%
 

 

 

Conditions of Use

Medium temperatureT1 (Normal, Standard)-20—80℃
T2 (High Temperature Type, Customized)-20—120℃
T3 (High Temperature Type, Customized)-20—150℃
Ambient temperature-20—60℃relative humidity5%—90%
atmospheric pressure86—106KPa

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