Flow rate calculation for Peristaltic pump

[MANIKANTHA.PYDIMARRI]

Hello guys, I am trying to calculate the flow rate of the viscous liquid that is being pumped using a peristaltic pump. The information I have is

RPM of pump = 225rpm
no. of rollers = 6
internal diameter of the pipe = 3mm
Rated voltage of stepper motor = 12V
Rated current of stepper motor = 1.7A
Holding torque = 260mN.m
Detent torque = 12mN.m
Dynamic viscosity = 38.286mPa.S
Kinematic Viscosity = 33.060mm^2/S
Density = 1.158g/mm^3
and also the length of the pipe
so guys please anyone help me with, how to calculate the flow rate or the equations to proceed further


Thanks in advance for any help or suggestions the forum may have!

 

[MANIKANTHA.PYDIMARRI]

Is the information available sufficient to calculate the flow rate or is any other information required

 

[Artisi]

Why not ask the manufacturer?

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

 

[MANIKANTHA.PYDIMARRI]

i dont have the contact of the manufacturer, i am student doing my project

 

[itsmoked]

A peristaltic pump is a positive displacement pump that simply shoves a fixed volume of fluid via the pinch rollers at whatever rate the motor/gearbox can provide or is set to.

The first three values on your list will get you the first order volume being pumped. That's probably why they were listed in that order.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[TenPenny]

I think the part that you're missing is what is the diameter that the rollers turn on? That will give you the circumference of the circle that the tube goes around, which will let you calculate / estimate what volume of the tube is being swept by each roller and each revolution.

If the rollers are rotating on a 3m arm, or a 30mm arm, that would make a big difference.

 

[LittleInch]

Also please double check that RPM. It seems very high for this type of pump. Normal seems to be approx 50 RPM, max 100.

But without diameter of the ring you'll get nowhere.

But surely this has a make and model number on it somewhere. Then just google it and you'll get the data from the vendors website.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[FACS]

You need the diameter of the rollers squeezing the tube to calculate the volume available during the rotations.

It is not a pipe.

Homework isn't supposed to be in here

 

[MANIKANTHA.PYDIMARRI]

thank you very much itssmoked, LittleInch and TenPenny for your most useful replies .... with try to figure out what i can do with your suggestions