Dear All,
I am having 6" pipe line through which 200 m3/hr water is flowing.If I put 1/2" inch tapping on that pipe,can I get a flow of 200m3/hr through that 1/2" tapping.
if answer is no,then why ? & what are the reasons ?
Regards,
Santosh
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Posted 17 April 2015 - 04:37 AM
Dear All,
I am having 6" pipe line through which 200 m3/hr water is flowing.If I put 1/2" inch tapping on that pipe,can I get a flow of 200m3/hr through that 1/2" tapping.
if answer is no,then why ? & what are the reasons ?
Regards,
Santosh
Posted 17 April 2015 - 06:04 AM
santosh,
Theoretically speaking, the flow of water through a 1/2" pipe can be even higher than 200 m3/hr, but in real world the huge resulting momentum will destroy the pipe and associations such as elbows and valves...
Posted 17 April 2015 - 06:36 AM
The answer is "No Answer" because you did not specify the pressure differential and pipe length.
Posted 17 April 2015 - 07:51 PM
Edited by samayaraj, 17 April 2015 - 07:58 PM.
Posted 17 April 2015 - 10:40 PM
As per your data,velocity for 200 m3/hr through 15NB line is approximately 315 m/sec.
That's real close to supersonic.
Edited by curious_cat, 17 April 2015 - 10:40 PM.
Posted 18 April 2015 - 08:44 AM
It's about Mach 0.2; the speed of sound in liquid water is about 1500 m/sec.
Posted 20 April 2015 - 07:39 AM
API 14E Table 2.3 Typical Flow Velocity: 3m/s for discharge velocity.
Posted 21 April 2015 - 01:43 AM
Dear All,
I am having 6" pipe line through which 200 m3/hr water is flowing.If I put 1/2" inch tapping on that pipe,can I get a flow of 200m3/hr through that 1/2" tapping.
if answer is no,then why ? & what are the reasons ?
Regards,
Santosh
From equation Q= VA
Find Velocity and convert it to pressure, if your pipe and joints capable to withstand it than u can use 1/2 " pipe line.....
Posted 18 May 2015 - 12:41 AM
I have an experience that, there is one piping and have 1 branch that goes to HEX A and HEX B respectively. The piping all is 6”. The branch is not symmetrical. After installation, based on data, the flow that goes to HEX A and HEX B is different which more favor to HEX A which is closer. After some investigation done, it says that not symmetrical is the cause of unequalled flow to both HEX. After re-rout back the piping and make it symmetrical, the flow that goes to HEX A and B is equally distributed.
For this case, I don't think you will get 200m3/h for that small piping after do for tie-in ½”. the reason is, let say you have a big pipe and you make a small hole on that piping, do you think you will get same flow rate that goes to small hole as per inside the main pipe? I don’t think so. If you make a hole that same size with the pipe size, then it will make sense to get same flow rate as per inside main pipe.
The only you can get 200m3/h for that small ½” is when you totally close the 6” piping and of course the velocity will be very high.
Edited by farid.k, 18 May 2015 - 09:08 AM.
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