What is the purified water velocity limit and where it is mentioned

(jamal basha) #1

what is the purified water velocity limit and where it was mentioned

(Ankur Choudhary) #2

@jamalbasha Velocity of purified water in circulation loop should not be less than 1.5 m/s to avoid the biofilm formation.

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(jamal basha) #3

Dear sir,

Which guideline it is mentioned.

(Patlolla Ramreddy) #4

Velocity increase in loop what is the problem

(Patlolla Ramreddy) #5

What is the Reynolds number for pharmaceutical water system distribution lopp

(Patlolla Ramreddy) #6

How to calculate the Reynolds number

(Madeeha batool) #7

Sor can u please mention the refrence ???

(Manoj Singh) #8

More than 4000 Reynolds

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(Tania de la Cruz Curbelo) #9

In purified water distribution loop a turbulent flow regime must be maintained at the point of return of the loop in order to avoid the biofilm formation. The velocity depends on the pipe’s diameter, that’s why you can reach a fully developed turbulent flow regime (Reynolds higher than 4000) with velocity values ​​below 1.5 m/s.
Greets, Tania

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(Dhananjay) #10

To control return loop conductivity velocity of water need to maintain.

(gaurav bansal) #11

The Reynolds number measures the turbulence of water
flowing in the distribution pipelines. If the Reynolds number
is above 2000, the water has turbulent flow. If the
Reynolds number is below 2000, the water may have laminar
flow, which may lead to biofilm development

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(Bk Vin) #12

With velocity of purified water in circulation loop should not be less than 1.5 m/s. If there are about 30% of the user points open the valve to get water is difficult to achieve. Kindly advise!

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(Amit Kalyan) #13

PLEASE NARROW YOUR IN-HOUSE LIMIT TO 3.0 M/S (OR VALIDATE) YOU WILL GET AT LEAST 1.5 M/S ALL THE TIME DURING OPENING OF 30% OF VALVE AT USER POINT.