Topic: LPG Liquid feed valve (Read 1369 times)

TheBoy · « **on:** 11 April 2011, 10:44:22 »

Does anyone know what the sealing method should be on these?

Does it rely on a taper at the bottom (whould have to be precise manufacture, as valve has to point in a precise direction), or should there be some kind of sealing compound on the thread?

JamesV6CDX · « **Reply #1 on:** 11 April 2011, 10:47:02 »

Do you mean the outlet on the 4 hole tank?

I believe it's sealed by the compound, rather than position.

I had to rotate mine clockwise, to clear a bracket inside the airtight box. It was 'Effin tight and hard to move!!

JamesV6CDX · « **Reply #2 on:** 11 April 2011, 10:48:28 »

Also, if you have a 4 hole - the valves should be pre - fitted, so providing they point in suitable directions, you can leave them as-is.

TheBoy · « **Reply #3 on:** 11 April 2011, 11:03:55 »

Quote

Also, if you have a 4 hole - the valves should be pre - fitted, so providing they point in suitable directions, you can leave them as-is.

It would appear not always

JamesV6CDX · « **Reply #4 on:** 11 April 2011, 11:20:44 »

Quote

Quote
Also, if you have a 4 hole - the valves should be pre - fitted, so providing they point in suitable directions, you can leave them as-is.
It would appear not always

I'd give your tank supplier a slap

tunnie · « **Reply #5 on:** 11 April 2011, 11:38:19 »

mine was not pre-fitted either, it was just based on the thread.

JamesV6CDX · « **Reply #6 on:** 11 April 2011, 11:43:46 »

Quote

mine was not pre-fitted either, it was just based on the thread.

Yours is a multivalve, so generally these don't come pre-fitted

Never known 4 hole tanks coming without valves before, though!

TheBoy · « **Reply #7 on:** 11 April 2011, 11:43:48 »

Quote

mine was not pre-fitted either, it was just based on the thread.

Yours is multivalve, very different, uses a rubber seal iirc

tunnie · « **Reply #8 on:** 11 April 2011, 11:52:21 »

Quote

Quote
mine was not pre-fitted either, it was just based on the thread.

Yours is multivalve, very different, uses a rubber seal iirc

Well thats your fault for buying a stupid tank with more holes

TheBoy · « **Reply #9 on:** 11 April 2011, 11:54:44 »

Quote

Quote
Quote
mine was not pre-fitted either, it was just based on the thread.

Yours is multivalve, very different, uses a rubber seal iirc

Well thats your fault for buying a stupid tank with more holes

Power is for gentlemen of a certain age. 4 pots are for useless students. Learn and get over it

Kevin Wood · « **Reply #10 on:** 11 April 2011, 12:29:11 »

I would imagine the fitting has a tapered thread rather than seat, allowing it to seal with a little adjustability in the angle.

The question is: what "compound" is used to seal them?

Gut feeling is that PTFE gas tape might do the job, but mine looks to have been sealed with a paste of some sort. Given the PITA involved in resealing, it needs to be done the "correct" way.

Kevin

Marks DTM Calib · « **Reply #11 on:** 11 April 2011, 12:32:14 »

I would have thought liquid PTFE would be the way to go

TheBoy · « **Reply #12 on:** 11 April 2011, 12:55:37 »

Quote

I would have thought liquid PTFE would be the way to go

Got a name and where I can get it? ie, something B&Q or Wickes, given the lack of anything useful around here.

Does it have to be gas specific - ie, not normal plumbers stuff?

TheBoy · « **Reply #13 on:** 11 April 2011, 13:09:09 »

This:

http://www.screwfix.com/p/ptfe-gas-tape-pack-of-10/53966

combined with this

http://www.screwfix.com/p/no-nonsense-ptfe-liquid/40302

??

So remove valve (could be easier said that done!), clean up thread of threadlock, wrap in PTFE tape, add some PTFE liquid "to make sure", screw back in?

TheBoy · « **Reply #14 on:** 11 April 2011, 13:11:43 »

or

http://www.screwfix.com/p/liquid-ptfe-50g/30469

given that the reviews on the No-Nonsesne liquid I posted earlier imply its shite! And this one mentions LPG

aaronjb · « **Reply #15 on:** 11 April 2011, 13:37:18 »

Get some Loctite pipe sealant: http://www.screwfix.com/p/loctite-pipe-sealant-63g/72039

I seem to recall that's the red stuff, in which case it's used by BA on various aircraft air & liquid systems so I'd imagine it'd be fine for LPG

"Yellow sh*t" is better, but a) I don't know the proper name for it and b) I don't know anywhere to get it outside of the fitters at my Dad's place (they're plumbing things like liquid nitrogen and liquid oxygen feeds @ 20bar and use this stuff)

PhilRich · « **Reply #16 on:** 11 April 2011, 16:13:50 »

'Rocol Gas Seal' paste is a good bet

aaronjb · « **Reply #17 on:** 11 April 2011, 16:44:10 »

http://www.aiworkwear.co.uk/1643/b577-yellow-pipe-sealant-50ml-bondloc-from-ai-workwear < I'm fairly sure that's the aforementioned 'yellow sh*t' btw.. but I can check if you want.

TheBoy · « **Reply #18 on:** 11 April 2011, 18:51:38 »

Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Kevin Wood · « **Reply #19 on:** 11 April 2011, 18:58:51 »

Just get a reel of gas approved PTFE tape.

B&Q's yer man. Sure the chavs 'll have one of them. They sell some pretty distasteful interior decor and fittings

Kevin Wood · « **Reply #20 on:** 11 April 2011, 19:00:00 »

Quote

Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.

TheBoy · « **Reply #21 on:** 11 April 2011, 19:08:02 »

Quote

Quote
Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.

Gauge reads 50% (max=80%), as the cripple insisted I try to find some lag on this setup, and it was rude not to oblige....

TheBoy · « **Reply #22 on:** 11 April 2011, 19:10:03 »

Quote

Quote
Just get a reel of gas approved PTFE tape. B&Q's yer man. Sure the chavs 'll have one of them. They sell some pretty distasteful interior decor and fittings

I seem to remember that LPG degrades ptfe tape over time iirc? :-/

Gas approved PTFE

Lazydocker · « **Reply #23 on:** 11 April 2011, 19:17:19 »

Quote

Quote
Quote
Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.
Gauge reads 50% (max=80%), as the cripple insisted I try to find some lag on this setup, and it was rude not to oblige....

break orf!

But before we do it again can you get some decent rubber on there please

To put this to bed I had a chat with someone in the know today... It is a tapered thread and should seal at a tad over hand tight... Gas PTFE and some LPG suitable liquid stuff is just a belt and braces approach

The tank was supposed to have been valved and boxed when delivered

TheBoy · « **Reply #24 on:** 11 April 2011, 19:21:01 »

Quote

Quote
Quote
Quote
Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.
Gauge reads 50% (max=80%), as the cripple insisted I try to find some lag on this setup, and it was rude not to oblige....
break orf!

But before we do it again can you get some decent rubber on there please

To put this to bed I had a chat with someone in the know today... It is a tapered thread and should seal at a tad over hand tight... Gas PTFE and some LPG suitable liquid stuff is just a belt and braces approach

The tank was supposed to have been valved and boxed when delivered

But potentially still would have leaked, unless sealent is the norm when they fit?

Lazydocker · « **Reply #25 on:** 11 April 2011, 19:29:50 »

Quote

Quote
Quote
Quote
Quote
Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.
Gauge reads 50% (max=80%), as the cripple insisted I try to find some lag on this setup, and it was rude not to oblige....
break orf!

But before we do it again can you get some decent rubber on there please

To put this to bed I had a chat with someone in the know today... It is a tapered thread and should seal at a tad over hand tight... Gas PTFE and some LPG suitable liquid stuff is just a belt and braces approach

The tank was supposed to have been valved and boxed when delivered
But potentially still would have leaked, unless sealent is the norm when they fit?

They probably would take the belt and braces approach automatically... But never mind... It's a learning curve and that's another lesson learnt! And the required bits may come in hand at a later date

TheBoy · « **Reply #26 on:** 11 April 2011, 19:31:54 »

Quote

Quote
Quote
Quote
Quote
Quote
Needs to be soething I can pick up tomorrow. Live in Brackley, work in chavtown. Neither have anything useful.

Tried ShitFix in Banbury. Waste of an hour, a gallon of LPG, and 20,000miles of rear rubber. And I checked with them that they had stock first. Banbarians = Thick inbred retards.

Only another 13 to go and you'll be able to fix the tank valve.
Gauge reads 50% (max=80%), as the cripple insisted I try to find some lag on this setup, and it was rude not to oblige....
break orf!

But before we do it again can you get some decent rubber on there please

To put this to bed I had a chat with someone in the know today... It is a tapered thread and should seal at a tad over hand tight... Gas PTFE and some LPG suitable liquid stuff is just a belt and braces approach

The tank was supposed to have been valved and boxed when delivered
But potentially still would have leaked, unless sealent is the norm when they fit?
They probably would take the belt and braces approach automatically... But never mind... It's a learning curve and that's another lesson learnt! And the required bits may come in hand at a later date

Aye, sounds like a couple more soon....

JamesV6CDX · « **Reply #27 on:** 11 April 2011, 19:35:28 »

My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..

feeutfo · « **Reply #28 on:** 11 April 2011, 22:27:38 »

Quote

My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..

Blue gunk on this one.

Another vote for ptfe. Btw!

Lazydocker · « **Reply #29 on:** 11 April 2011, 22:47:04 »

Quote

Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

tunnie · « **Reply #30 on:** 11 April 2011, 22:50:01 »

Quote

Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?

CaptainZok · « **Reply #31 on:** 11 April 2011, 22:52:09 »

Quote

Quote
Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?

Don't forget to have a hissy fit when you lose your post count student.

Andy B · « **Reply #32 on:** 11 April 2011, 22:53:19 »

Quote

....
Don't forget to have a hissy fit when you lose your post count student.

should that be a Lizzy fit?

tunnie · « **Reply #33 on:** 11 April 2011, 22:53:21 »

Quote

Quote
Quote
Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?
Don't forget to have a hissy fit when you lose your post count student.

Handbag is at the ready!

Lazydocker · « **Reply #34 on:** 11 April 2011, 23:20:42 »

Quote

Quote
Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?

Let's not be silly here......... That'll never happen

feeutfo · « **Reply #35 on:** 11 April 2011, 23:21:47 »

Quote

Quote
Quote
Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?

Let's not be silly here......... That'll never happen

Well, he never said what sort of diet...

Lazydocker · « **Reply #36 on:** 11 April 2011, 23:23:43 »

Quote

Quote
Quote
Quote
Quote
Quote
My tank was a stacko from tinleytech, the valves were pre-fitted with some red gunk around the threads..
Blue gunk on this one.

Another vote for ptfe. Btw!

We've spoken today... He knows what's needed

He is going on a diet?

Let's not be silly here......... That'll never happen
Well, he never said what sort of diet...

Curreeeeeeeyyyy time!!!!!

News:

Author Topic: LPG Liquid feed valve (Read 1369 times)

aaronjb

aaronjb

feeutfo

feeutfo