N
namsag
so called qualified not diy but i would not matter it still loosens off
Gas PTFE tape vs.water PTFE tape
- Thread starter mike004
- Start date
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You did tell me why, but you were wrong.
CORGI/ACS say it must be gas grade and they must have the reason; what is that reason?
It doesn't react with gas. Why are there British Standards, written by industry experts, stating that it is the just one material, PFTE and nothing but PTFE?
I don't think it's OK and haven't used it on gas. There's no point in libelling me, it won't change the facts that you don't know and what you thought you knew was wrong.
If anything I will tend to use the gas grade on BSP threads in the future.
Obviously I'm not going to get any answers from you.
Thanks Numpty. I've only got BS 5392; it's a spec for ABS pipe fittings type C is a pressure rating, 9 bar, I think.
FFS, if your using standard PTFE on gas joints then your wrong, if your using gas approved PTFE on anything other than gas then its overkill (but hey, belts and braces.), If your using Loctite 55 on your water, gas ,steam and several chemical joints, then hey dude welcome to the KNOWLEDGEABLE.
N
namsag
So if im wrong and i dont know. WHY are you going to take my advice and use it.
Spend a wee bit more time on manufacturers web sites and go a bit deeper,
Out of interest ONETAP why do you change your usual name on here when you want to spout sh#te . Do you not have the courage of your conviction
Spend a wee bit more time on manufacturers web sites and go a bit deeper,
Out of interest ONETAP why do you change your usual name on here when you want to spout sh#te . Do you not have the courage of your conviction
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I'm not following your advice, I'm following the BS I read. Where did you advise that? You said it was overkill.
I've only ever used the one name on here.
I don't use ordinary PTFE on gas, I am just asking what the difference is in the hope that someone will have the real answer.
I can't see any difference to using several turns of thin tape instead of one turn of thick, gas stuff.
I wouldn't use the thin stuff on gas; I don't know the reasons, but that does not mean there isn't a reason. Besides it's cheap.
my apologies if Ive got this wrong Nam, but are you accusing me of being wrong, or accusing you of being wrong, in either case you'll find Im right.
Exactly Craig, as I posted earlier.
Can't believe this post is carrying on so far.
Ooops, I've just carried it on
BOSS GT PTFE tape. "This tape satisfies demands of BGC IM/16 and is suitable for town gas, natural gas and LPG."
http://www.bssuk.co.uk/bsscomm/uploads/productinfo/BOSS_permanite_GT_PTFE_tape.pdf
BOSS PTFE tape. "Used by plumbers and heating engineers to provide a watertight seal on threaded joints."
http://www.bssuk.co.uk/bsscomm/uploads/productinfo/BOSS_ptfe_tape.pdf
They are the same material, i.e., both "100% pure, virgin PTFE and containing less than 0.1% wt residual lubricant".
The only difference is the thickness, 0.20 and 0.075mm.
FFS Ladies, you have been educated unto the future. Loctite 55 use a bit and come back and say its all wrong/not natural.
its the one stop sealant, " nuff said".
PTFE= Play time for eijits.
its the one stop sealant, " nuff said".
PTFE= Play time for eijits.
I worked in the WL Gore factory in Livingston where they spray PTFE onto clothing and shoes and stuff to make it watertight but breathable.
Extortionate Goretex clothing but very effective.
The security was unbelievable because the had no patents for the process preferring instead to keep the process secret. Must have worked cause this was about 20 odd year ago and WL Gore still make the stuff,don't think anyone else does but no doubt someone will prove me wrong.
BTW,PTFE is the most frictionless material know to man or was
Never heard of it reacting with NG and causing explosions. Namsag,are you on drugs? Can I have some?
Extortionate Goretex clothing but very effective.
The security was unbelievable because the had no patents for the process preferring instead to keep the process secret. Must have worked cause this was about 20 odd year ago and WL Gore still make the stuff,don't think anyone else does but no doubt someone will prove me wrong.
BTW,PTFE is the most frictionless material know to man or was
Never heard of it reacting with NG and causing explosions. Namsag,are you on drugs? Can I have some?
To further muddy the water I wonder what you experienced gents think of this bit of advice I've been given.
Don't use jointing compound and ptfe together because the compound degrades the tape.
I can't find any reference to it in books or the like so was wondering if it's one of those myths that gets bandied around or it it has basis in truth?
I haven't really found a need to use both together but I've been encouraged to do it on an immersion heater. I'm dubious.
Don't use jointing compound and ptfe together because the compound degrades the tape.
I can't find any reference to it in books or the like so was wondering if it's one of those myths that gets bandied around or it it has basis in truth?
I haven't really found a need to use both together but I've been encouraged to do it on an immersion heater. I'm dubious.
One wrap only Gas tape,
the correct amount of tape is applied with a 50% overlap to enable
sufficient threads to engage to make a sound joint, excess tape and
the threads tighten prematurely and can cause joint failure and death
as was the case here ( 2nd post down ) .
From the offshore safety forum Step Change
http://stepchangeinsafety.net/CommunityServer/forums/thread/4197.aspx
the correct amount of tape is applied with a 50% overlap to enable
sufficient threads to engage to make a sound joint, excess tape and
the threads tighten prematurely and can cause joint failure and death
as was the case here ( 2nd post down ) .
From the offshore safety forum Step Change
http://stepchangeinsafety.net/CommunityServer/forums/thread/4197.aspx
was always taught never to mix paste and ptfe,do not know the reason why for sure, but think it causes some kind of reaction and degrades the ptfe somehow.
go back to the old ways just paste the threads with jointing compound that sets,or move with the times and use loctite 55 on everything
go back to the old ways just paste the threads with jointing compound that sets,or move with the times and use loctite 55 on everything
to quote onetap.
thats the reason its the way unsintered fills the thread in a near homogenus manner and maintains electrical continuity.
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