PEX... fittings really supposed to be that loose before crimping?

Going to be adding a faucet in our laundry room and I've gotten all the materials I need, except the crimper (picking it up today).
I did a dry run and the 1/2" pex fittings sure seem loose inside the 1/2" line.
Will the metal crimp ring really tighten this up or am I missing something?
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Sort of unrelated but I used PEX to replace some outside faucet runs and used quick connect fittings from Lowes. They worked great and everything just snaps together with a perfect seal. I hope it proves to be a good product.
Noozer wrote:

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ianjones wrote:

Hi, Crimping tool has to be properly adjusted(calibrated), then no sweat!
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Sort of unrelated but I used PEX to replace some outside faucet runs and used quick connect fittings from Lowes. They worked great and everything just snaps together with a perfect seal. I hope it proves to be a good product.
Noozer wrote:

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Yes. When you get the crimper, ensure you get the "go - no go" tool to check crimps.
Good luck..
Oren
"My doctor says I have a malformed public-duty gland and a natural deficiency in moral fiber, and that I am therefore excused from saving Universes."
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wrote:

Typical Home Despot... They didn't have a clue what the "go - no go" gauge was, even after I explained how it was used. The rental desk didn't have any and there were none on the shelf to be purchased.
Unfortunately, HD rents the crimper for $9/day. Anyplace else wants $25/day.

I'll need it!
I've done a few crimps, they look good and are solid. I'm sure that all will be well.
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wrote:

I just finished repairing a large section of galvanized with PEX and yes the thing is rather loose before you crimp it. It really holds a good amount of pressue when its crimped, but using that tool is a gigantic pain in the ass, especially when you're in awkward positions.
I'm not totally sure what good the go/no-go gauge is, but so far I pass the tests. Seems like it the no-go gauge should be larger than the go guage, maybe they're testing to make sure the crimp isn't too tight?
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wrote:

The gages are to ensure that the crimped ring is neither too loose nor too tight. To ensure that the outside of the crimped ring is between some 2 size limits, the no-go must be smaller than the go. If you were measuring the inside diameter the no-go would be larger. Don Young
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wrote:

I think of go/no-go gauges in terms of bolt action firearms - since I do early war model restorations. There the Go gauge means the clearance from the bolt face to the chamber is within factory tolerances, the no-go gauge means it exceeds those specifications, and the field gauge means it exceeds the military's specifications.
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wrote:

Yes, that type of gage is measuring space, as you would be if measuring an inside diameter. If you are measuring outside diameter then the concepts are a little different.
Think of a very crude go/no-go gage to check if a group of rods are between 2 inches and 3 inches in diameter. The go gage would be 3 inches so all good rods would fit in it. Any rods over 3 inches would not fit in it. The no-go gage would be a little less than 2 inches. No good rods would fit in it and any that did would be too small. So any rod which fits into the go gage and does not fit into the no-go gage must be between 2 and 3 inches and be okay.
Don Young
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We rented the crimper from Home Depot..$ 10/day IIRC You are using the proper pex connections, right? They look like cast brass (yellow metal)
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I'm surprised that Harbor Freight doesn't sell one for $14.95
<rj>
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