As long as the supply lines for the shower tie into a 3/4″ line, 1/2″ will be fine. I use a Delta shower faucet that already has pex adapters made into the valve body, no threading or sweating, just crimp and you’re done.
Under the Uniform Plumbing Code, a 2″ vent can handle 24 fixture units(F.U). In a residence, a lavatory sink= 1.0 F.U., bathtub/shower= 2.0 F.U.
Beside this, What size PEX should I use for a shower?
1/2 Pex will work fine, but 3/4 will give you almost 50% more avalible CFM.
Likewise, Can PEX be used for shower?
When doing a shower/tub valve — you can use PEX for the hot and cold supply and for the leg that goes from the shower head but NOT to the tub spout.
Also, How many fixture units is a water closet?
TYPE OF FIXTURE OR GROUP OF FIXTURES DRAINAGE FIXTURE UNIT VALUE (d.f.u.)a
————————————————- ————————————-
Laundry tub 2
Shower stall 2
Water closet (1.6 gallons per flush) 3
Water closet (greater than 1.6 gallons per flush) 4
How are fixture units calculated?
A fixture unit is equal to 1 cubic foot (0.028 m3) of water drained in an 1 1⁄4 inches (32 mm) diameter pipe over one minute. One cubic foot of water is roughly 7.48 US gallons (28.3 l; 6.23 imp gal). A Fixture Unit is used in plumbing design for both water supply and waste water.
23 Related Question Answers Found
What size are shower supply lines?
one-half inch
What are plumbing fixture units?
In plumbing, a Fixture Unit (FU) or Drain Fixture Unit (DFU) is “a unit of measure, based on the rate of discharge, time of operation and frequency of use of a fixture, that expresses the hydraulic load imposed by that fixture on the sanitary plumbing installation”.
What size PEX for a shower?
1/2 inch is all you need for a shower head and a hand hold. The 2.5 gpm flow rate is now built into the valve itself.
Why is PEX plumbing bad?
PEX plumbing system has been used for more years and therefore its failures has been observed and known. Its major failures is linked to piping and fitting. Piping fails when the pipes are exposed to chlorine that is within the water, exposure to direct sunlight before its installation.
Is 1 2 PEX big enough?
In general, the greater the distance from the manifold to the fixture, the wider the PEX tubing should be. A 3/8-inch line is sufficient for lengths up to 250 feet; 1/2-inch line will deliver adequate water pressure up to 350 feet; and 3/4-inch tubing is necessary to run a 500-foot line.
How far can you run 3 4 water line?
If you figure the planting is normal 2 feet apart, thats going to make the length you need to cover approximately 600 feet. 600 feet of 3/4 pvc will have a friction loss of 2.76 gpm. Depending on the distance from you point of connection and how much pressure and how many gpm you start out with.
How many fixture units is a shower?
Individual fixtures Minimum fixture outlet pipe size Number of units
———————- ——————————– —————
Kitchen sink, domestic 1/2 inch 1.5
Laundry sink 1/2 inch 1.5
Lavatory (wash basin) 1/2 inch 1.0
Shower (per head) 1/2 inch 2.0
How far can you run a water line from the meter?
Most residential meters are 3/4″ and then you use a larger pipe for long distance to deal with the friction loss. 1,000 feet is a long ways.
What are the disadvantages of PEX?
– PEX may leach BPA and other toxic chemicals. …
– PEX is extremely sensitive to UV light. …
– PEX can be damaged by chemicals and pests. …
– PEX can’t be installed in high heat areas. …
– PEX is semi-permeable, which means liquid can enter the pipe.
What is the difference between PEX A and PEX B?
PEX A uses an expansion-style fitting. These fittings are much larger in diameter the PEX B fittings, and require an expansion tool. Using the expansion tool, you enlarge the pipe and sleeve in order slide in the fitting.
What is the flow rate of 1/2 PEX pipe?
At a design velocity of 8 feet per second (fps) in a ½” PEX system, water velocity will reach at least 12.7 fps and as high as 19 fps, depending on the type of fitting used.
Where is PEX not allowed?
Pex not being allowed in commercial or industrial buildings, and thus not in residential buildings deemed “commercial industrial”.
Last Updated: 10 days ago – Co-authors : 9 – Users : 4
