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2022-04-21 00:00:00

Plumbing Trends: PEX Piping Layout & Methods

Piping Layout & Installation - Overview &   Comparison
When designing or installing a PEX plumbing   system, you will first have to decide on the layout and method of   installation. Here outlines the three most common types of PEX plumbing   layouts for review.
In order to choose the layout and method that best satifies the jobsite   requirements you will consider the factors relevant to your priorities.

Trunk & Branch (Conventional)
QQ图片20220421150527.pngConventional or Trunk & Branch Method is   the same method used in rigid plumbing systems. Running PEX tubing in the   Conventional Method requires the installation of a main trunk line which   branches to specific outlets. This method does reduce the total linear feet   of tubing used; however, it does require more fittings, which can increase   cost and installation time.
Multi-Port Tee (Hybrid)
QQ图片20220421150531.pngMulti-Port T Method combines the benefits of   the Conventional and Home Run Methods. Multi-Port T Method runs individual   branch lines from smaller manifold located near groups of fixtures. This   effectively reduces the length of total tubing used on the job, while   minimizing the number of fittings required for Conventional Method of   Installation.
Home-Run (Parallel)
QQ图片20220421150534.pngHome Run or Parallel Method distributes water   to each fixture from a centrally located manifold. The manifold is typically   located close to the hot water source in order to provide fast and efficient   hot water delivery. The Home Run Method provides a dedicated line from the   manifold to the fixture which reduces the need for fittings behind the wall.

Minimize Pipe UsedTrunk & BranchMulti-Port THome-Run
Minimize   Fittings & JointsHome-RunMulti-Port TTrunk & Branch
Sequential   Flow Hot Water Delivery TimeTrunk & Branch / Multi-Port T
Minimize Hot   Water Wait TimeHome-RunMulti-Port TTrunk & Branch
Single Fixture   PressureTrunk & BranchHome-Run / Multi-Port   T
Pressure   Stability with Use of Multiple FicturesHome-RunMulti-Port TTrunk & Branch
Centralize   Shut-Off ValvingHome-RunMulti-Port TTrunk & Branch
Joint   Accessibility During InstallationHome-RunMulti-Port TTrunk & Branch