Max. velocity on yard mains.
Max. velocity on yard mains.
(OP)
We´d like to know what is the maximum recomended design flow speed in pipes (and minimum speed if there is one), of a yard system (private) which feeds foam systems, monitors, hidrants on a thermal plant. It is fed by centrifugal horizontal pumps.
We met the diameters required by NFPA 20 on discharge lines and I know there are speeds that must be obtained to flush the pipes (3m/s), we have diameters from 6" to 12".
The plant may grow, and we want to consider the possibiliy of buying more pumps in the future and to know if the pipes can widstand more flow.
Thanks.
We met the diameters required by NFPA 20 on discharge lines and I know there are speeds that must be obtained to flush the pipes (3m/s), we have diameters from 6" to 12".
The plant may grow, and we want to consider the possibiliy of buying more pumps in the future and to know if the pipes can widstand more flow.
Thanks.





RE: Max. velocity on yard mains.
RE: Max. velocity on yard mains.
The limit on your piping will simply be the amount of water you can to the system at a given pressure.
I have seen jurisdications with velocity limits on yard mains ranging from 10 - 15 ft/sec. However, there is nothing in NFPA 13 or 24 that sets a maximum velocity.
RE: Max. velocity on yard mains.
RE: Max. velocity on yard mains.
RE: Max. velocity on yard mains.