Menu Close

Do PEX fittings restrict water flow?

Do PEX fittings restrict water flow?

The reality is that even PEX expansion fittings, which are sometimes referred to as “full-flow,” restrict flow rates. At a rate of 8 feet per second, the CPVC fitting will cause less than 1% restriction in flow while PEX fittings create a 23% to 54% reduction in flow, depending on the fitting used.

Can I use PEX for a tub spout?

The tub spout can be copper, brass, or galvanized pipe. You cannot use pex because the pipe coming out of the valve needs to be able to support the weight of the tub spout and handle the abuse of pulling/ pushing down of the divirter built into the spout.

Can you connect PEX directly to faucet?

Benefits of PEX over Copper Because it’s so flexible and easy to use, connecting PEX to a faucet or other valve takes less time than connecting to copper. There are far less fittings required because of its flexibility, and connecting PEX to a faucet is done with a crimper, requiring no soldering.

Do you lose water pressure going from copper to PEX?

You do not lose pressure or volume flow rate by using the larger ID.

How many gallons per minute can half inch PEX flow?

It puts out 4.2 gallons a minute.

Is PEX more restrictive than copper?

Pex/plastic pipe have higher flow rates than copper. However pex fittings ID (inside diameter) is smaller than the pipe of the same size, so it actually does impede water flow. Wirsbo pipe on the other hand is expanded to fit around the fitting which has the same ID as the pipe.

Where should you not use PEX?

PEX can’t be installed in high heat areas. You can’t install PEX in high heat areas like near recessed lighting. This also means you can’t connect PEX directly to a hot water heater, but you can use a connecting material to do this.

Is it worth replacing copper with PEX?

While copper is an excellent material, no material is perfect. You can develop some problems with your copper pipes, and PEX is often a great replacement that can eliminate these problems. Keep hot water hot: PEX keeps the water warmer as it flows through the pipe so that you get hotter water on the other end.

Can a PEX be attached to a tub spout?

Plus, there isn’t a good way to attach any of the tub spouts to PEX. They typically are either a slip on or a screw on connection. You can’t anchor the PEX, so your spout would move and the connection would be a problem. PEX to supply the shower valve is okay but not for the tub spout.

What’s the difference between PEX and copper shower pipe?

1/2″ copper verses 1/2″ PEX have the same external dimensions, but the internal dimensions are different PEX pipe walls are thicker, thus smaller and lower flow capacity. Any restriction to the tub spout will often be enough restriction to cause it to slowly backup in the showerhead riser, and dribble out there as well.

Do you need drop ear elbow for PEX?

A drop ear elbow is need regardless of the material, but it will not eliminate the back flow problem if you use PEX. Maybe the customers of the pros who “use it frequently” only use the tub as a shower so they do not have the problem.

Which is bigger a copper fitting or a PEX fitting?

Yes, the Uponor F1960 fittings have bigger ID than the common F1807 or F2159, all PEX fittings of a given nominal size are smaller than copper fittings. I know this is an old thread, if should post elsewhere please let me know.