Finger Tight or Wrench Tight on these three plumbing connections? (see picture)

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  #1  
Old 09-07-13, 10:40 AM
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Finger Tight or Wrench Tight on these three plumbing connections? (see picture)

Can someone tell me how tight to tighten these three connections? Is it just full-finger tight, or use a wrench?

(1) For an under the sink faucet. Rubber gasket. Finger or wrench tight? Use teflon tape?

(2) For an under the sink Faucet. Compression fitting. Finger or wrench tight? No teflon tape, right?

(3) Dishwasher stainless steel braided hose. Rubber washer. Finger or wrench tight. Teflon tape?

Much thanks!

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  #2  
Old 09-07-13, 10:54 AM
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Only fittings that should need tape or dope are tapered pipe fittings.
1, and 2. are snugged up with a wrench. Do not over tighten, if there dripping just give them a tiny turn.
3, Should be hand tight.
The one with no number on it is a compression fitting, going to need 2, wrench's one to hole the fitting one to turn the nut. Once it make's firm contact turn it with the wrench about 1/2 a turn.
If it get's over tightened it will twist the Farrell and leak.
 
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Old 09-08-13, 04:41 AM
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Finger tight?

Hi Joe, thx for replying...

A few questions.... With these types of screw on connections, non of the examples that I showed are tapered, and thus none would need teflon tape, right? Do you use anything on the threads at all, like soap or something?

FYI the (2) is that hose end with the accompanying farrell and washer just beneath it. And what would that mate with, flexible copper pipe? From what you said 'it is a compression fitting, going to need 2, wrench's one to hole the fitting one to turn the nut. Once it make's firm contact turn it with the wrench about 1/2 a turn'.

Much thanks for your answers...

Dave
...

When you say snugged up, that is make it fully finger tight then snug it up like a quarter of a turn tighter with a wrench?







joecaption1
Only fittings that should need tape or dope are tapered pipe fittings.
1, and 2. are snugged up with a wrench. Do not over tighten, if there dripping just give them a tiny turn.
3, Should be hand tight.
The one with no number on it is a compression fitting, going to need 2, wrench's one to hole the fitting one to turn the nut. Once it make's firm contact turn it with the wrench about 1/2 a turn.
If it get's over tightened it will twist the Farrell and leak.
Yesterday, 04:40 PM
dvarga
Can someone tell me how tight to tighten these three connections? Is it just full-finger tight, or use a wrench?

(1) For an under the sink faucet. Rubber gasket. Finger or wrench tight? Use teflon tape?

(2) For an under the sink Faucet. Compression fitting. Finger or wrench tight? No teflon tape, right?

(3) Dishwasher stainless steel braided hose. Rubber washer. Finger or wrench tight. Teflon tape?

Much thanks!


Read more: http://www.doityourself.com/forum/ne...#ixzz2eIPTinET
 
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Old 09-08-13, 04:50 AM
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No tape, soap or dope should be needed on any of them.
#2 could be used for copper, or even plastic or nylon lines it you added an insert inside the tubing so it does not crush the tube.
 
  #5  
Old 09-08-13, 12:16 PM
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Just to clear the air, Farrell is the surname of Tiffany.

[ATTACH=CONFIG]17434[/ATTACH]

Tiffany Farrell is a character in the comic strip Luann.

What Joe is referring to is called a ferrule.

ONLY tapered pipe threads require Teflon tape or some kind of thread sealant/lubricant.

Fittings with gaskets should be snugged up just a bit tighter than hand tight at first and if they leak then slowly tighten with a wrench until it stops leaking.

Compression fittings, the ones with ferrules, need to be tightened securely, but not over tightened. Generally one and one-half turns past finger tight. If it still leaks then gently continue tightening up to about two turns maximum. Adding a drop of oil to the threads of a compression fitting can often allow you to tighten it more easily without damage. Unfortunately, the compression fittings sold at the big box mega-mart homecenters are often of inferior quality and will leak no matter what.
 
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Old 09-08-13, 12:29 PM
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I usually put a bit of tape on all plumbing threads (except gas) weather it's needed or not just to prevent seizing up or corrosion. Of course keeping in mind that it's easier to over tighten with the teflon tape.
 
 

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