| Application: | 1/2" PEX |
|---|---|
| Warranty: | 2 Year |
| Material: | Plastic |
| Tubing Compatibility: | PEX |
Hi Eric! Typically just two are used. Uponor offers this with four holes so that you can attach it to either side, but you do not need to use all four.
These are not for that purpose, These nail to wall studs or ceiling joists allowing you to make a tight turn and protect from kinks where the tubing passes through the stud or joist.
The flange with the four holes is nailed to the wall studs. You may need to add cross blocking between studs for proper locating and support. The curved pipe support is pointed in the direction of your PEX tubing feed... up, down, etc... After inserting your PEX with adequate additional stubbed out and capped (6" to 8") apply drywall or other wall treatment. When installing your shutoff valves trim the PEX to desired length then install your PEX ready valve. These supports work well under sinks and places where they will not be seen. The nature of the PEX fittings make it difficult to make a neat finished look. If looks are important I like to use the bent copper stub outs that are available or make my own, then regular 1/2 compression ring type shutoff valves can be used.
When I used pex for a bathroom remodel, I ran into a similar situation. I used a Pex 90* fitting to make the bend. I wasn't fond of the idea of having to cut the line, I wanted a continuous piece of Pex but it has been in place for over 2 years and no problems. Adding the 90* fitting is not any different the attaching any other fitting to the line.
If you measure the radius to the outside of the tubing, the plastic drop ears I bought measure 3 inch radius. That is the way I categorize them. The ones I bought have Uponor's name on them, so I have to assume Uponor/Wirsbo consider them safe for their own PEX-a. However, if you are uncomfortable making that judgment yourself I would send an inquiry direct to Wirsbo. As a DIY'er I have run some simple tests on my own. 3 out 4 brands of PEX tubing that I tried in 3 inch plastic Uponor/Wirsbo supports look just fine with no significant initial flattening. However, there is a difference between tubing brands. One tubing brand I tried did show noticeable initial flattening and a higher tendency to kink. I make a point of avoiding that brand. However, I have no way to prove that tubing that looks good initially will not develop problems after 10 or 20 years in service. I do have some Sharkbite tubing, which I believe is PEX-c, in 3 inch plastic bend supports in hot water service for two years in my house, in a place where I can see them, and those bends still look fine - like new. I think this whole bending issue needs some attention-to-detail by the industry. The manufacturer's literature never seems to mention the difference between requirements for supported and unsupported bends, but surely there is a difference. When they say minimum radius of 6 X OD or 8 X OD, is that supported or unsupported bends? Also, sometimes the issue of "bending against the coil" for coiled PEX is not mentioned, but you can see in the plumbing code and elsewhere that it is high risk and generally should be avoided.
This product is designed for 3/8" and ½" PEX tubing. According to "Professor PEX" at http://pexsupply.blogspot.com/2010/08/bend-radius-of-pex-tubing.html, the bend radius should be about six times the diameter. The "Professor" isn't clear as to whether that is measured from the outside of the tubing on the inside of the curve, the centerline of the tubing or otherwise. The litmus test would be that if the tubing flattens significantly, it's too tight. It may be that this product is primarily designed for 3/8" tubing and can be made to work with ½" tubing "in a pinch". For similar applications, I prefer to use a product like PEX Supply's SKU #LF2855050 (see: http://www.pexsupply.com/Wirsbo-Uponor-LF2855050-Copper-Stub-Ell-1-2-PEX-LF-Brass-x-1-2-Copper-13-x-8) so that the PEX is completely inside the wall and not exposed to UV. That approach also provides a metal surface to mount the supply valve with a compression fitting. That makes it quick, easy, sturdy and durable, although the copper stubs add more cost. Ken Morley
Yes, the 1/2" bend support will would work 5/8 od pipe. Gene
Radius is 1-1/2" from center of pipe. Depth is 3-1/4" from flange to outside radius of bend.
Yes, they do. These drop ear supports work with all standard PEX tubing.
Yes, it will.
Tom, I'm assuming that the tubing size is 1/2" or 3/8" and will penetrate the 2 x 4 stud. If so, then this will fit in a standard 2 x 4 wall. It will center the tubing on the stud, which is good because it will maximize the distance from the surface and reduce the likelihood of drywall screws hitting the pex tubing DB
You can use this part under the vanity. It can be mounted behind the bracket.