| Size: | 3/8" |
|---|---|
| Application: | Heating Plumbing |
| Material: | Engineered Plastic |
| Max Temp (F): | 320ºF |
| Max Operating Temp: | 210ºF |
| Fitting System Compatibility: | Expansion PEX |
| Tubing Compatibility: | hePEX plus PEX-a |
| Standards Met: | ASTM F1960 CAN/CSA B137.5 ASTM F877 |
| Warranty: | 25 Year (Limited) |
The Q4773838 coupling is 1-3/8" long and works with nominal 3/8" PEX-A tubing using the ProPEX expansion fitting method. 3/8" PEX has a .350" ID and a .5" OD, while 1/2" PEX has a .475" ID and a .625" OD.
They can, as long as it is permitted by all applicable local codes.
Yes, it can.
Yes.
I don't see why not- as long as the lines are pressure tested before they are concealed.
Ask your local plumbing inspector. In many areas of the country they are approved for such uses.
Yes, I used many of these fittings in ceilings and walls. It's a good idea to pressure test the circuit before closing it in, however.
They are good reliable fittings. I have used them many times during my renovation behind walls. It is not like electrical where the expectation is to get at a connection.. Warmly,
yes
No, this fitting is ProPEX on both sides and only works with PEX-A tubing and the expander tool. You may want to use a crimp fitting. These work with both PEX-A and PEX-B tubing.
No, This is uphonor to uphonor. Crimp pex has different size connectors, so don't even try (I did).
No. This fitting requires that tubing must be expanded. The crimp type pex cannot be expanded. Right??
ProPEX fittings are based on the nominal size of the PEX tubing. PEX is sized to have the same O.D. as copper. 5/8" copper, for example, has a 5/8" ID and a 3/4" OD. 5/8" PEX also has a 3/4" OD, but it has a .574" ID (PEX is thicker). This particular fitting (Q4776363) works with 5/8" PEX-A tubing using the expansion fitting method.