Does PEX need an expansion loop?
When installing PEX, remember that it expands and contracts in response to temperature; for every 10 F of temperature change, the length of PEX changes by 1 inch/100 feet of piping. Allow 1/8-inch of slack for each foot of PEX. For longer PEX runs, add loops to provide further slack.
How big of a flex line do I need for PEX tubing?
Extra clamps or crimp rings are always a good idea in case any mistakes are made. Clamps and supports for the PEX tubing will be necessary. If connecting to a water heater, the PEX cannot be within 18 inches of the water heater, so an 18-inch water heater flex line can be used as the transition into the water heater.
What’s the expansion rate of bare PEX pipe?
Bare PEX is listed for use in concrete as well as below-grade and water service applications. PEX pipe expands and contracts at a rate of 1.1 inches per 100 feet per 10 degrees F ∆T.
What kind of support do I need for PEX pipe?
Utilizing PEX-a Pipe Support in suspended-piping applications in conjunction with fixed anchor points can reduce this expansion and contraction rate to an acceptable level. When using PEX-a Pipe Support, be sure to use a minimum 300-pound, tensile-rated, stainless steel strap to secure the support to the pipe.
How big of a riser do I need for PEX pipe?
This rate is actually less than that for copper, which is 0.11 inches per 100 feet per 10 degrees F ∆T. For risers, use a copper tube size (CTS) riser clamp on the base of each floor to control for expansion and contraction.
How big of hole do you need for PEX tubing?
A non load bearing wood- or i-joist can be drilled to a maximum depth of 60 percent of the depth of the wood. Notches can go to 40 percent deep. Extra pipe support may be required during PEX tubing installation.
How to install PEX tubing with a crimp connection?
How to install PEX tubing – making a crimp connection. 1 Step 1: Cut the PEX tubing. To ensure you have a smooth and even cut, position the cutter at 90 degrees to the tubing. 2 Step 2: 3 Step 3: 4 Step 4: 5 Step 5:
Bare PEX is listed for use in concrete as well as below-grade and water service applications. PEX pipe expands and contracts at a rate of 1.1 inches per 100 feet per 10 degrees F ∆T.
