Flowrate measurment for grease like substance

You could use a Loss in weight feeder between to the hooper and the pipe. These devices provide set point control based on the desired flow rate, pounds/Minute or pounds/hour. These devices typically provide accuracies of +/- 0.25% of the 100% design flow rate. Contact http://www.thayerscale.com for details.

Mustafa, I work for a company named Fluid Components International. The website is <www.fluidcomponents.com>. We make flow measurement devices for an incredibly wide range of fluids from all gases to sewage to bunker C to hydrazine rocket fuel. Send an email to the customer service department and state your needs. The technology used by FCI is what we call "thermal dispersion." This uses the simple fact that anything flowing over a heated resistor will pull heat away as a function of the flow rate as well as the specific heat of the fluid. We have been using this technology for over 28 years and have thousands of customers all over the world. There is a bonus of this technology in that you also get a precision temperature output at no extra cost. You can direct read the rate on a LCD screen, or remote the signal via analog voltage signals, or via an RS-232 data link. --jer

Wont a stopwatch, scale and 5 gallon bucket work?

Thanks a kot for your replies.

Using a resistor (temperature) based measurment device is not permitted by the inductrial saftey agency since the emulsion is explosive in nature.

A bucket and stop watch would not work if i want to monitor the flow rate at industrial level!!!!

Is there any other way I cluod measure the flowrate?

Mustafa

Your dismissal of this technique is premature and ill-advised. As I said before, we use this system on military jets to measure jet fuel flow. We used it in a space craft to measure the flow rate of hydrazine (rocket monopropellant) in spacecraft. It is used to measure the flow of natural gas in power plants. It is used to measure the flow of fuel oil in power plants. Now just how dangerous do you think these systems are compared to your explosive grease material? There is really no other way to measure flow of this thick material. Turbine or paddle wheel flow meters cannot work in high viscosity material. A coriolisis flow meter is terribly expensive (we sell those too, by the way). If you have a flow measurement problem, then go to the experts.

You could use a Loss in weight feeder between to the hooper and the pipe. These devices provide set point control based on the desired flow rate, pounds/Minute or pounds/hour. These devices typically provide accuracies of +/- 0.25% of the 100% design flow rate. Contact http://www.thayerscale.com for details.

Thayer Scale also makes an intrinsically safe version of there feeders.

Gear pumps are used to meter high viscosity gelatine during photographic materials manufacture. The flowrate is proportional to the angular velocity of the gear-pump, which can be monitored by various means.

JeryMack, I do agree with you that the resistor based flow measurment method can be used, but it is difficult to get permission for use from the industrial saftey organisation.

PWSlack, I had kind of landed up on a gear/lobe type flow meter.... but can i use a gear motor also..What would be the accuracy if i use a gear motor to meter the fow??

Mustafa

What you need is a peristaltic pump, I believe.

Very accurate volumetric dispensing using hoses such as the above.

One supplier is

http://www.eccentricpumps.com

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