25/04/2020
فيد واستفيد 👌👌
Return bend components definitions according to - 2019 edition:
1- : A horizontal pipe that extends from the branch line to a single sprinkler or a sprinkler above and below a ceiling.
2- : A vertical pipe between the cross main and branch line.
3- : The pipes supplying sprinklers, either directly or through sprigs, drops, return bends, or arm-overs.
4- : A device or assembly used to support the gravity load of the system piping.
5- : A sprinkler designed to be installed in such a way that the water stream is directed downward against the deflector.
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