All You Need to Know About the Truflo Paddle Wheel Flow Meter

When it comes to flow control, the paddle wheel flow meters hold several advantages over many other flow control systems. The most obvious of these advantages is evident in their low maintenance costs. In particular, the Truflo Paddle Wheel Flow Meter requires very little in terms of installation, operation and performance making it one of the most cost efficient flow meters in the market today.

How does it work?

 

Chemical Flow Meter

The Truflo PaddleWheel Flow Meter consists of three main parts; the pipefittings, an LCD display screen and a paddle wheel sensor. The paddle wheel sensor can be found inside the pipe fitting and the paddle itself goes halfway into the flow stream. The paddle wheel gets spun by any fluid that flows within the pipe and as this happens, the magnets attached to the paddle also spin. As the magnets continue spinning past the paddlewheel sensor, electrical pulses directly proportional to the rate at which the fluid is flowing are also produced. The numbers of output electrical pulses produced per corresponding volumes are published as the K-factor.

In addition to the above, which constitute the principal components of the flow meter, the Truflo Paddle Wheel Flow Meter has a number of additional features that further set it above the rest. These include the following;

-          Vertical and horizontal installation; the paddle wheel’s operation is not affected by gravity and any other factors that would influence its installation. It can be installed both either vertical or horizontal positions and still function just as well.

-          High impact polycarbonate cover and rugged design; both of these features make the Truflo flow meter is a very hardy device that can withstand a lot of pressure and other external elements. It is also very suitable for use on corrosive materials.

-          Secure; the security of this flow meter is password protected meaning that no one can re-program or reset it without password authorization. This feature is very important especially when the flow meter is being used in sensitive chemical installations where even the smallest deviations can lead to serious consequences.

Applications of the Truflo Paddle Wheel Flow Meter

It is hard to list down all the areas where this flow meter can be installed and used. That said, here are a few areas where it is used relatively more extensively;

-          Dispensing systems; unlike other flow meters that use preset timers to allow the flow of a fluid for a given duration, this paddle wheel flow meter actually measures the exact volume that flows. While in the former any system problem that affects the flow rate will change the amount dispensed, such problems do not influence anything in the latter.

-          Chemical metering pumps; when you need to mix large volumes of chemicals in specific ratios, the Truflo flow meters can come in very handy. It is a very accurate flow meter that will ensure only the specified volume of a given chemical goes through, regardless of whether or not the system has any problems or defects outside the flow meter.

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KNOW A LITTLE MORE ABOUT THE MATERIAL USED IN MARQUEST NEEDLE VALVES

With reference to the cost, lifetime, corrosion resistant, scaling resistance, easy maintenance and many more advantages make the plastic valves better than the metallic valves. When it comes to plastic valves, there are a lot of different materials of choice. It is important to know about the features of the material to know, which one would suit your application.

Marquest needle valves

The Marquest needle valves are slender and have a tapered point, at the end of the valve stem. The valve stem is lowered through the seat, to block the flow. It has a very small valve that can regulate the liquid flow, very accurately. It also has a precision resistance to flow through the fine threading. The only disadvantage of this type of valve is that it has a low pressure limitation; that means, the valve cannot handle a high pressure. It also has no slurries.

PVC

The Marquest needle valves are available in PVC (polyvinyl chloride). It is a very commonly used material. The features of PVC are flexibility, fatigue resistance, smooth surface, non-toxic quality and chemical resistance. It can be used in food and beverage industries as the PVC is inert to major chemical process.

CPVC

The CPVC Marquest needle valves are higher grade of PVS. It can be used in hot or cold water distribution, chemicals and in sprinkler piping. The only disadvantage of PVC is that it cannot withstand extreme temperature. CPVC overcomes this disadvantage and it can be used in distributing high temperature liquids as well.

PVDF

The polyvinylidene fluoride is a processable fluoropolymer. It is similar to that of floropolymer but has greater strength. It has lower creep than other materials. It has wear and tear resistance, chemical resistance and can be used in extreme temperatures too.

Polypropylene

The polypropylene is a thermoplastic material. This can be used for extreme cold fluid. It has bi-axial strength, elongation properties, resistance to chemicals, weather, UV, ozone and is fatigue resistant. It has all the features of PVC but can be used in extreme cold conditions.

The application of Marquest needle valves is very wide and in varying industries. Based on the type of the material used and the other specifications, the needle valve can be used in many applications where precision and accuracy are very important. It is used commonly in controlling liquids that are expensive or that has to be used only in certain amount like in chemical and oil industries. It is also commonly used in laboratory settings for research and other experimental purposes. Beyond the type of material used, there are many other specifications like the temperature, pressure and other factors that can make a valve ideal or not fit for an application.

As your application requires precision and accuracy, it does not mean you should choose the needle valve. There are many other valves that provide these features too. Moreover, there can be other features that make a certain valve the best fit for your application. Make sure to choose the right one to get all the advantages of the product

plastic gauge

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Advantages and Installation of the ProAlertViewSonicAlarm

Advantages and Installation of the ProAlertViewSonicAlarm

Finding the right liquid or flow sensor and alarm system is not an easy task and the main reason behind this is the fact that not all alarm systems are designed the same. When it comes to flow control in industrial processes, the benchmark qualities of the right alarm system extend way beyond the simple detection and alert mechanisms that you would find in a typical home alarm. Of course it still has to have these but the point is that it needs to be able to do a lot more, given the sensitivity of the process it controls. This is particularly why the ProAlert 1000 ViewSonic alarm is more popular than other alarm systems in this category.

Some of the main advantages that come with the ProAlert 1000 ViewSonic Alarm provided by Icon Process Controls include the following;

i)                    Full alert; a good alarm system is one that can send out an alert over the widest distance possible to better make sure that people responsible actually receive the message. In this respect, this alarm has a bright, high intensity red light that can broadcast much further than your typical alarm. In addition to this, it also has a 90 dB audible alarm feature. You can imagine how loud that sounds so with the combination of the two features, it’s hardly likely that anyone on site would miss the alert warnings.

ii)                   Very easy to install; unlike many flow sensors and alarm systems, the ProAlert 1000ViewSonic Alarm is very easy to install and you don’t really have to be an expert to do this on your own. The entire installation process is very simple and can be broken down into the following steps;

-          Decide on where you want to mount the alarm. Fortunately the ProAlert 1000 is very small and compact in size (7x5x4.5 inches in dimension) and can be mounted in most places without occupying too much space.

-          Mount the unit. Use the mounting feet that are built into it to make it stick.

-          Plug the 120 volt AC plug into an AC receptacle of similar voltage. It is important to plug it into a separate circuit, different from the flow/sensor circuit. This ensures that any problem with the latter does not affect the operation of the alarm and you are notified of such a problem as well.

-          Following the manufacturer’s instructions that come with the alarm, connect the sensor to the flow system being monitored.

-          Test the sound on the alarm using the switch on its front face. Toggle this switch to all the 3 positions (test, normal and silence) in order to ensure it is working properly

-          Your alarm is ready to use

iii)                 It is economical; the ProAlert 1000 ViewSonic Alarmthat Icon Process Controls supplies requires very little operation and maintenance after installation and it lasts for more than 3 years in perfect condition making it very cost friendly in the long run. The combination of the tough NEMA 4X enclosure and high impact polycarbonate shell not only protect it from physical damage but also from corrosion and damage by chemicals.

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Why Choose Level Sensors???

For purposes of position sensing applications, engineers are specifying incremental sensors as they believe absolute sensor are too costly or too complex. Understanding the main differences between absolute and incremental level sensors is very important.  This is often a great challenge for many engineers. Sometimes the terminologies dealing with position sensing is too confusing too. Some sensor manufacturers even claim to make absolute measurement sensors when in truth all they offer is incremental measurement sensors. 

What is the difference between absolute and incremental sensors?

The main distinguishing feature is that in incremental measurement level sensors, it reports incremental change in position. This means that the level sensor is powered up and does not report its position until you give it a reference point from which it bases the measurement.  On the other hand, absolute measurement level sensors reports its actual position within arrange or scale.  When it is powered up, it reports its position without any need for reference information. 

What happens on power up?

This is a good acid test that helps differentiate these two typesof level sensors. In fact, if the level sensors has to go through some calibration process, then it is an incremental level sensor. If on the other hand, it doesn’t then it is an absolute level sensor.

Levelpro 800 Series Liquid Pressure Sensor

Reliability and wear issues

As much as potentiometer are a common form of position level sensors, the use of non-contact level sensors has grown over the years significantly.  This trend is attributed to problems associated with reliability and potentiometer ear particularly in harsh environments or even extended life-times.

Potentiometers are absolute. However, the common form of non contact level sensors is optical encoder. The device works basically by shinning a light through an optical grating then calculating position based on the intensity of returned light. Many optical devices are incremental. The position information is delivered using a series of pulses mostly in quadrature phase to aid in determining the direction of travel.

In the case of absolute level sensors, the optical device uses a different scale, whereby the absolute position is determined through a power up without a need for reference mark.  These level sensors have digital output with resolutions defined by number of bits in that output.  Incremental level sensors are cheaper than absolute level sensors hence sell more. However, you need to get the most suitable level sensor for your application for reliable results.

In most cases submersible pressure sensors like the Levelpro series offer extremely long life and are suitable for aggressive chemicals .

Some of the non-contact level sensors like the Flowlinewill offer you good accuracy, improved performance and reduced overall cost.

 There are also new generation inductive devices that also offer accurate absolute position level sensors unaffected by harsh environments. These devices are laminar windings, printed and have fundamental operating principles similar to that of a resolver or transformer. The physical involved enables high resolution, compact, absolute and lightweight level sensors independent on optical features from a light source.

 The other advantage of these inductive devices is that they are not affected by foreign matter like moisture and dirt. In addition, their performance measurement are not affected by generous mounting tolerances or offsets hence do not need precision housings.

Levelpro Level Sensors offers a complete range of pressure sensors suitable for industries toughest chemicals.

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