what's torque specs for AN/npt fittings?

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Old Aug 26, 2003 | 07:32 PM
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2000vsm's Avatar
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From: GTA
Default what's torque specs for AN/npt fittings?

how much do i tighten them?
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Old Aug 26, 2003 | 07:49 PM
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From: Tejas
Default Re: what's torque specs for AN/npt fittings? (2000vsm)

NOt very much, the AN fitting seals by having the right angles (37 degress) rather than tightness between threads. Do it until you have about 1/16 to 1/8" of space between the red socket and the swivel nut on the blue compression fitting.

This is taken from the installation intruction for my oil return kit,

Mark the end of the red compression fitting before installing the blue nut fitting with a marker, you should not have anymore than 1/16" of the line portion that backed out once the blue fitting is completely assembled



Use a vise, then tightened the blue compression fitting,



then you're done..



stan
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Old Aug 26, 2003 | 09:32 PM
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Is that a vise bolted to a 2x4? That looks like a pretty good idea for those of us without workbenches
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Old Aug 27, 2003 | 12:45 AM
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Default Re: (inspyral)

is that aeroquip? looks alot nicer than earl's
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Old Aug 27, 2003 | 05:03 AM
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Good info! Those pics make it look easy!
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Old Aug 27, 2003 | 06:54 AM
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Default Re: (lilxvtecxpwr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lilxvtecxpwr &raquo;</TD></TR><TR><TD CLASS="quote">is that aeroquip? looks alot nicer than earl's</TD></TR></TABLE>

Nope it's BFGoodrich.
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Old Aug 27, 2003 | 10:25 AM
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From: GTA
Default Re: what's torque specs for AN/npt fittings? (Flamenco-T)

thx for that.. i needed that but that wasn't my original question

i mean like you bolt the NPT on a T or the BSPT on the block, how much do i tighten that.. also for AN fittings, like the one on the oil pan to the fitting, how tight? thanks
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Old Aug 27, 2003 | 10:32 AM
  #8  
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From: Tejas
Default Re: what's torque specs for AN/npt fittings? (2000vsm)

the fitting is Goodridge, which is what I carries.

as far as the torque specs, do it until all threads are used on the AN fittings, on the BSPT fitting to the block, do it until it turns all the way, leaving you with no threads expose. You can really torque it since you have to use a wrenches, not a socket with torque wrench.

Snuggle fit is a good indication of tigthness

stan
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Old Aug 27, 2003 | 08:38 PM
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2000vsm's Avatar
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From: GTA
Default Re: what's torque specs for AN/npt fittings? (Flamenco-T)

ok i don't wnat to kill my only fitting, i just put my NPT fitting into my BSPT/NPT adapter and i can't thread all the way the NPT part, but it's tight and getting really hard to turn... i guess stop eh? it's got like 2 threads left on the npt
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Old Aug 27, 2003 | 08:43 PM
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From: Tejas
Default Re: what's torque specs for AN/npt fittings? (2000vsm)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000vsm &raquo;</TD></TR><TR><TD CLASS="quote">ok i don't wnat to kill my only fitting, i just put my NPT fitting into my BSPT/NPT adapter and i can't thread all the way the NPT part, but it's tight and getting really hard to turn... i guess stop eh? it's got like 2 threads left on the npt</TD></TR></TABLE>

that's what it supposed to do, "T" at the end stands for Tapered, the fitting is tapered and have different diameter from one end of the thread to the other. That's how they seals and that's the reason why they're not re-usable.

stan
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Old Aug 27, 2003 | 09:08 PM
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2000vsm's Avatar
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From: GTA
Default Re: what's torque specs for AN/npt fittings? (Flamenco-T)

ok so i guess i shouldn't attempt to take it out?

are you sure it's not reusable, then how come we can take out the stock oil sender and put another fitting inside?

you saying male is not reusable?
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Old Aug 27, 2003 | 09:13 PM
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Default Re: what's torque specs for AN/npt fittings? (Flamenco-T)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flamenco-T &raquo;</TD></TR><TR><TD CLASS="quote">

that's what it supposed to do, "T" at the end stands for Tapered, the fitting is tapered and have different diameter from one end of the thread to the other. That's how they seals and that's the reason why they're not re-usable.

stan</TD></TR></TABLE>

Actually, the T stands for thread. National Pipe Thread. "Pipe" threads are tapered
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Old Aug 27, 2003 | 09:17 PM
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From: GTA
Default Re: what's torque specs for AN/npt fittings? (tony1)

ok but are they resuable? i just too koff one from my vacuum brass tee
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Old Aug 27, 2003 | 09:33 PM
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Default Re: what's torque specs for AN/npt fittings? (2000vsm)

i've always thought it was ...

National Pipe Tapered.
British Standard Pipe.
British Standard Pipe Tapered.
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Old Aug 28, 2003 | 10:51 AM
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Default Re: what's torque specs for AN/npt fittings? (lazerus)

wow, I wish I couldve installed mine like that. so pretty.
mine are all hacked up.
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Old Sep 24, 2003 | 10:52 AM
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Default Re: what's torque specs for AN/npt fittings? (SiRkid)

Im trying to get the red connector piece over the braided line and im having trouble doing so

is there any tricks or tips that would help me out?
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Old Sep 24, 2003 | 11:00 AM
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From: Tejas
Default Re: what's torque specs for AN/npt fittings? (VTeC4TheChildren)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTeC4TheChildren &raquo;</TD></TR><TR><TD CLASS="quote">Im trying to get the red connector piece over the braided line and im having trouble doing so

is there any tricks or tips that would help me out?</TD></TR></TABLE>

make sure when you cut the line you use a masking tape, so you don't frayed the the line, then put a little dab of oil on the lines so it makes it easier to slide the red fitting on the lines.

stan
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Old Sep 24, 2003 | 11:09 AM
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Default Re: what's torque specs for AN/npt fittings? (Flamenco-T)

Stan Stan the FITTING MAN
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Old Sep 24, 2003 | 01:22 PM
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Default Re: what's torque specs for AN/npt fittings? (tony1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">

Actually, the T stands for thread. National Pipe Thread. "Pipe" threads are tapered </TD></TR></TABLE>

If he was referring to BSP-T, then you are wrong. The 'T' stands for tapered, because there is also a BSP fitting that is not tapered. I, however, do think the T in NPT is Thread...so, two words that begin with 'T', go figure
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