PESCO INSTRUMENT & METER CO.,LTD ( subsidiary of PETROL STEEL CO.,LTD ) is specializing in the production and operation of Sight Glass Flow Indicator, Ball Type Sight Glass Flow Indicator, Sight Glasses Flow Indicators, Visual Flow Indicator, Water Flow Indicator, Visual Water Flow Indicator, magnetic flip level gauges, glass plate level gauges, colored quartz glass tube level gauges, float transmitters and float switches, as well as gas flowmeters, liquid flowmeters enterprise integrating designing and marketing development of dozens of products such as rotameters. The products are mainly used in industrial sectors such as petroleum, chemical industry, electric power, environmental protection, food, tanning, light industry and medicine. PESCO INSTRUMENT & METER CO.,LTD has strong technical force, excellent production technology, complete testing equipment, reliable product quality, complete specifications, and stock. After years of development, the company has flourished and established a sound management system and a stable quality assurance system to meet various needs of the market. Since the establishment of the company, it has been committed to the research, promotion, sales, installation and maintenance of oil sight glass and other related products.

Our Sight Glass Flow Indicator brand: PESCO

Operating temperature range: 400°C, friction coefficient: 1.1,

Abrasion: 0, impact strength: 0.6/1.0/1.0/1.6 (MPa),

Material: 304, pipe diameter: DN6-DN300,

Pipe thickness: 10-20 (mm), suitable for high-temperature fluids such as water, oil, and liquid.

Our flow indicator materials include but are not limited to: stainless steel 304, 316L, brass, carbon steel, alloy steel, super alloy materials, etc.;

Country of Origin: China

Specification: DN6-DN1000

Product name: Glass tube flow indicator

Production process: casting and forging

PESCO INSTRUMENT & METER CO.,LTD is mainly engaged in: Sight Glass Flow Indicator, Inline Flow Indicator, Flow Indicator Flowmeters, Sight Glass Flow Indicator Emerson Vanessa Valve, Accurate Liquid Flow Indicator, Precision Air Flow Meter,  Oval Gear Flow Meters, Digital Flow Indicator, 304 stainless steel flanged sintered glass test mirrors, 304 stainless steel straight-through sintered glass test mirrors, glass wafers, automotive air-conditioning sight glass, threaded sight glass and other related products. Another company undertakes various processing operations (gantry CNC milling machines, vertical milling machines, lathes, etc.).

Visible 360° glass tube impeller water flow indicator, also known as impellerSight Glass Flow Indicator, is a necessary accessory to observe the flow of medium in the pipeline. The impeller sight glass is widely used in petroleum, chemical, chemical fiber, pharmaceutical, food and other industrial production equipment. It can observe the flow and reaction of liquid, gas, steam and other media at any time. It is an indispensable accessory to ensure normal production. Flow indicators include threaded flow indicators, welded flow indicators, and flanged flow indicators.

The Sight Glass Flow Indicator can also be used in the automatic sprinkler system. It can be installed on the main water supply pipe or the horizontal bar water pipe to give the flow value of the medium in a certain sub-area and small area. This flow value can be sent to the electric control box to start the fire pump control switch.

Temperature resistance: 400°C

Pressure resistance: 0.6-1.6 mpa

Impeller: Made of PTFE or Nylon, available in two colors of red basket, with high visibility effect.

Medium: water, oil, gas and acid, alkaline liquid or toxic gas

The purpose of the Sight Glass Flow Indicator (applicable to circulating pump accessories, automotive supply accessories, and oil pipeline accessories) is to observe the flow of the medium in the pipeline, and the flow can be approximated through the impeller.

The Sight Glass Flow Indicator is a practical product that is easy to observe and install. At least it can be determined that there is a medium passing through. Both ends can be used as inlets, simple, direct and reliable. The flow rate can be estimated simply by observing the rotational speed of the rotor. Flow indicator sight glass allows easy removal for cleaning. The impeller flow indicator is a practical product that is easy to observe and install.

Features of Sight Glass Flow Indicator:

1. The surface glass of the window is easy to clean;
2. The glass window can be observed in 360° direction;
3. With vertical and horizontal functions, it is easy to install or disassemble.

To get the exact quotations of Sight Glass Flow Indicator and for more details of Mechanical Properties and Chemical Composition, please contact us freely, you will have instant feedback.

https://www.massflowmeter.com/contact-us

Tel/Fax: +86 10 8599 9168

Whatsapp/Wechat: +86 159 0035 7871

Email: sales@massflowmeter.com, jackywinn@foxmail.com

https://www.massflowmeter.com/product/coriolis-mass-flowmeter

https://www.massflowmeter.com/product/vortex-flow-meter

https://www.massflowmeter.com/product/differential-pressure-transmitter

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The vortex flow meter is an important instrument for flow measurement and automatic control. It is suitable for flow measurement of gas, liquid, and steam. It is widely used in industries such as petroleum, chemical industry, metallurgy, thermal power, textile, papermaking, electric power, environmental protection, and municipal construction.

How do the Vortex Flow Meters work? The working principle of the vortex flow meter:

If a non-streamlined vortex-generating body (bluff body) is set in the fluid, two rows of regular vortices will be generated alternately from both sides of the vortex-generating body. This kind of vortex is called Karman vortex street. When the fluid flows through the vortex-generating body set in the flow field at a certain flow rate, a pair of alternating and neatly arranged vortex columns (vortex streets) are generated downstream of the column, first on one side of the column, and then Generated on the other side of the cylinder. This theory of vortex generation was first proposed by Karman, named Karman vortex street, and gave the relationship between frequency and flow velocity, and the coefficient was named Strohal number.

Main functions, features, and advantages of our vortex flow meters:

1. With a wide measurement range, the flow of steam, gas, and liquid can be measured, with high accuracy, small pressure loss, high reliability, and long-term stability;
2. Measurement results and flow velocity distribution, fluid pressure, temperature, density, viscosity, etc.

The rational parameters are irrelevant;

3. Simple structure, easy installation, and maintenance, no moving parts, no mechanical wear, no moving parts, high reliability, stable long-term operation;
4. Wear-resistant, dirt-resistant, no mechanical maintenance, long service life, safe and explosion-proof,Suitable for harsh environments;

5. The sensor measuring probe is packaged with a special process, and the high-temperature resistance can reach 350°C
6. The sensor adopts a compensation design to improve the shock resistance of the instrument;
7. Using high-tech micro-power consumption, the battery-powered on-site display flowmeter can run continuously for more than five years;
8. Electrically isolated current output, good common mode interference suppression ability;
9. Brand-new appearance design, the body adopts precision casting technology, beautiful appearance, high-temperature resistance, strong corrosion resistance, good vibration resistance, and zero drift, effectively eliminating the influence of external vibration;
10. Surface mount process circuit, compact structure, high reliability, wide measurement range, range ratio up to 10:1, 15:1, 20:1, 30:1
11. Small pressure loss, wide dynamic measurement range, low operating cost, stainless steel body, strong corrosion resistance;
12. Commonly used signals include pulse or analog signals, stable signals, strong anti-interference ability, pulse output, 4~20mA output or HART communication/Modbus protocol communication, and can be connected with industrial automation systems;
13. On-site liquid crystal display, instantaneous flow display, and cumulative total display at the same time;
14. Density calculation, temperature and pressure compensation calculation, the online inspection of compensation calculation formula, local key setting, convenient parameter adjustment, and no need for the hand-held communicator.

The Technical parameters of Vortex Flow Meters

1. Measuring medium: liquid, general gas, steam;
2. Nominal diameter: DN15 ~ DN300 (full pipe type), DN150 ~ DN2000 (plug-in type), DN2000, and above shall be supplied through an agreement confirmed and signed with the customer;
3. Medium temperature: -40～100℃ (normal temperature), 100～250℃ (medium temperature), 100～320℃ (high temperature);
4. Nominal pressure: 1.6MPa, 2.5MPa, 4.0MPa (>4.0 agreement supply);
5. Accuracy: ±1%R, ±1.5%R (full tube), ±1.5%R, ±2.5%R (plug-in type);
6. Power supply: +12VDC (three-wire pulse output), +24VDC (three-wire pulse output and two-wire current output) 485 communication; HART protocol, etc., 3.6V lithium battery, dual power supply;
7. Body material: 304 (other materials are supplied by agreement);
8. Protection level: IP65 (other protection level agreement supply);
9. Environmental conditions: temperature -20℃～55℃, relative humidity 5%～90%, atmospheric pressure 86～106kPa;

The caliber selection of the Vortex Flow Meters is very important, and some principles should be followed for selection. The caliber selection: the maximum flow rate of the measured medium, the normal flow rate, minimum flow rate; maximum pressure, common pressure, minimum pressure; maximum temperature, common temperature, minimum temperature; flow measurement. Whether it is in the best working range of the instrument (that is, 1/2~2/3 of the upper limit flow).

The daily maintenance of the Vortex Flow Meters:

The vortex flow meter has no moving parts, so under normal use, it generally does not require frequent maintenance. When the measured medium is dirty or easy to scale, the inner wall of the flowmeter should be cleaned regularly, the vortex generator and detection probe should be well protected during cleaning, and the surface and edges should not be damaged. Non-professionals are not allowed to disassemble the parts at will, so as not to cause damage to the flowmeter. The end cover of the detection amplifier shell should be properly tightened after wiring debugging to ensure its tightness. Do not leave liquid and sundries in the housing during maintenance and inspection.

Appearance Characteristics of PESCO vortex flow meter:

Superior Materials include a high-strength aluminum alloy shell and superior stainless steel. PESCO vortex flow meter is stable and reliable, with no maintenance in the whole process.

All parts OF the PESCO vortex flow meter are not loose and maintenance-free during the operation. We have Premium Service Team and Professional Customed Design for Instruments, Gauges & Meters. PESCO vortex flow meter has an excellent circuit design, sensor structure, accurate and reliable measurements, and high sensitivity. There are no moving parts in the measurement process, no mechanical parts damage problems, and no regular maintenance. PESCO vortex flow meter has a stainless steel body, the traditional welding process, combined with high-quality sensors, the overall anti-interference, high-temperature resistance, signal transmission temperature, safe and reliable, and maintenance-free.

We choose the high-quality wiring board, firm wiring, more stable signal transmission, and optional built-in battery power supply, the double power supply is safer and can deal with emergency terminal wiring diagrams.

To get the exact quotations of the vortex flow meters and for more details of Mechanical Properties and Chemical Composition, please contact us freely, you will have instant feedback.

Tel/Fax: +86 10 8599 9168

Whatsapp/Wechat: +86 159 0035 7871

Email: sales@massflowmeter.com, jackywinn@foxmail.com

Related links:

https://www.massflowmeter.com/product/sight-glass-flow-indicator/

https://www.massflowmeter.com/product/differential-pressure-transmitter

https://www.massflowmeter.com/product/coriolis-mass-flowmeter

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The Features Of Pesco Coriolis Mass Flowmeters

Measuring Advantage

Directly measure the mass flow, without any influence of temperature, pressure, and velocity of flow. Display mass flow, volume flow, accumulated flow, density and temperature parameters and etc.

Excellent performance of small flow-rate measurement, the best ratio range can be up to 50:1.

Excellent Accuracy

High accuracy: ±0. 15% (±0.5% for high-pressure type and cryogenic type) in general. Measurement stability is highly reliable.

Design Advantage

Integration designed structure, small size, and installed conveniently. One compact transmitter is available.

Compact design, adapt to smaller install space.

Reliable performance, longer lifetime.

Pesco Coriolis Mass Flowmeters’ separate transmitter from the sensor lengthens the connecting component. Protect measurement against influence from temperature. (For cryogenic type plant std.)

The components of contacting medium are made of composite metal materials with excellent resistant performance to hydrogen embrittlement. (For high-pressure type plant std.)

Adequate designed pressure ensures reliability and security under super pressure. (For high-pressure type plant std.)

Deliver a Wide Range of Products

No matter where or in which process: Multiple designs for meter tube structures and a wide range of flow-rate can meet the demand of measurement during each process or application. Available multiple process connections, available transmitter mounting types, and wide output signals options, let our products be utmost compatible with your system.

MEASURING PRINCIPLE

Pesco Coriolis mass flowmeters, according to the principle of Coriolis, let the meter tube vibrate when there is a medium passing through. The sensor detects and analyzes the change in frequency, phase difference, and temperature of the meter tube. So that it can directly measure the mass flow of the medium, and density is calculated by vibrate frequency. Other process variables also can be obtained, like volume flow and temperature.

Measuring Mass Flow

The Driving-coil inside the sensor of the Pesco Coriolis Mass Flowmeters guarantees the meter tube keeps vibrating. If there are no media passing through the meter tube, it will vibrate evenly. While the substance is transported or distributed via the meter tube of the sensor, the inertia of media causes the vibration of the meter tube to distort according to it, resulting in different direction vibrations in the pipe inlet and the pipe outlet.

Detecting coils in the inlet and in the outlet of Pesco Coriolis Mass Flowmeters precisely detect and record the change that happened in time and space about the vibration of the tube. Through proprietary algorithms, calculate this phase difference, which is converted to an instantaneous flow rate then, integrates this instantaneous flow rate and obtain the flowing mass of the media finally.

Density Measurement

Meter tubes inside the sensor vibrate at an inherent frequency while the Pesco Coriolis Mass Flowmeter is working. The change of density inside the tube would cause the resonant frequency of the meter tube to be changed. Precisely measure the density of the media throughout the tube by detecting the resonant frequency of the meter tube and calibrating calculations using proprietary algorithms.

Volume Flow Measurement

Calculate the volume flow by measuring mass flow and density.

Temperature Measurement

A temperature transducer is equipped inside the sensor, so temperature parameters can be directly obtained.

To get the exact quotations of Coriolis Mass Flowmeter and for more details of Mechanical Properties and Chemical Composition, please contact us freely, you will have instant feedback.

Tel/Fax: +86 10 8599 9168

Whatsapp/Wechat: +86 159 0035 7871

Email: sales@massflowmeter.com, jackywinn@foxmail.com

Get a quote