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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Compression fittings on chrome pipe
Hi All
I am debating the best type of connection for joining tap connectors to 22mm chrome plated copper pipe. My plumbing skills are adequate but not exactly neat so I am unsure whether to use solder ring or compression fittings? I would have to file off the chrome for soldering and there's a very good chance the extra solder i put on (copying my plumber mate there) would surely run down the nice shiny chrome pipe and spoil it. Compression would be neater but the fittings are bulkier, also i'm not sure how the olives will grip on the chromed surface. Any tips or pointers Gents? |
#3
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Compression fittings on chrome pipe
"Dave Fawthrop" wrote in message ... On 2 Apr 2007 08:59:06 -0700, wrote: |!Hi All |! |!I am debating the best type of connection for joining tap connectors |!to 22mm chrome plated copper pipe. |!My plumbing skills are adequate but not exactly neat so I am unsure |!whether to use solder ring or compression fittings? |!I would have to file off the chrome for soldering and there's a very |!good chance the extra solder i put on (copying my plumber mate there) |!would surely run down the nice shiny chrome pipe and spoil it. |!Compression would be neater but the fittings are bulkier, also i'm not |!sure how the olives will grip on the chromed surface. Are you sure that the pipe is chrome plated copper? scratch it and see! I have used stainless steel pipe with compression fittings, no problems. -- Dave Fawthrop sf hyphenologist.co.uk I have used 15mm chromed copper pipes with compression fittings - just sandpaper off the chrome to reveal copper below. --- Brian |
#4
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Compression fittings on chrome pipe
"Brian Sharrock" wrote in message ... "Dave Fawthrop" wrote in message ... On 2 Apr 2007 08:59:06 -0700, wrote: |!Hi All |! |!I am debating the best type of connection for joining tap connectors |!to 22mm chrome plated copper pipe. |!My plumbing skills are adequate but not exactly neat so I am unsure |!whether to use solder ring or compression fittings? |!I would have to file off the chrome for soldering and there's a very |!good chance the extra solder i put on (copying my plumber mate there) |!would surely run down the nice shiny chrome pipe and spoil it. |!Compression would be neater but the fittings are bulkier, also i'm not |!sure how the olives will grip on the chromed surface. Are you sure that the pipe is chrome plated copper? scratch it and see! I have used stainless steel pipe with compression fittings, no problems. -- Dave Fawthrop sf hyphenologist.co.uk I have used 15mm chromed copper pipes with compression fittings - just sandpaper off the chrome to reveal copper below. Why? Won't the olive cut through the chrome and create a good seal without removing any chrome? |
#5
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Compression fittings on chrome pipe
"Fred" wrote in message ... "Brian Sharrock" wrote in message ... "Dave Fawthrop" wrote in message ... On 2 Apr 2007 08:59:06 -0700, wrote: |!Hi All |! |!I am debating the best type of connection for joining tap connectors |!to 22mm chrome plated copper pipe. |!My plumbing skills are adequate but not exactly neat so I am unsure |!whether to use solder ring or compression fittings? |!I would have to file off the chrome for soldering and there's a very |!good chance the extra solder i put on (copying my plumber mate there) |!would surely run down the nice shiny chrome pipe and spoil it. |!Compression would be neater but the fittings are bulkier, also i'm not |!sure how the olives will grip on the chromed surface. Are you sure that the pipe is chrome plated copper? scratch it and see! I have used stainless steel pipe with compression fittings, no problems. -- Dave Fawthrop sf hyphenologist.co.uk I have used 15mm chromed copper pipes with compression fittings - just sandpaper off the chrome to reveal copper below. Why? Won't the olive cut through the chrome and create a good seal without removing any chrome? Why? Experience! I tried to make a 'conventional' compression joint onto a chromed pipe - and fundamentally; it pulled off when pressurised. I twiddled one of the cylinder pipe cleaners thingy around it - abrading off the shiny chrome - and reconnected - voila -watertight; no drips. Without going into the metallurgy - I suspect that chrome is harder than the brass 'olive. I've only got two such joints in the house - a chrome downpipe-feed into the toilet's cistern. [The toilet cistern's connection cum service valve is chrome and I opined that a Cu feed pipe would look naff] ... however next time I'll channel the (rear) wall and not have any supply pipe visible. with the service valve inside the cistern. It's astonishing how 'tunnel vision' overcomes one when the 'bog' is out-of-service for even a short time. -- Brian |
#6
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Compression fittings on chrome pipe
On Apr 2, 4:59 pm, wrote:
Hi All I am debating the best type of connection for joining tap connectors to 22mm chrome plated copper pipe. My plumbing skills are adequate but not exactly neat so I am unsure whether to use solder ring or compression fittings? I would have to file off the chrome for soldering and there's a very good chance the extra solder i put on (copying my plumber mate there) would surely run down the nice shiny chrome pipe and spoil it. Compression would be neater but the fittings are bulkier, also i'm not sure how the olives will grip on the chromed surface. Any tips or pointers Gents? Hi I can't say whether it is right or wrong but I've used these... http://www.screwfix.com/app/sfd/cat/...8014&ts=47080# .... on all my radiators and the taps in the bathroom. They are chrome plated copper and none of them leaked when using conventional compression fittings. Steve |
#7
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Compression fittings on chrome pipe
"Brian Sharrock" wrote in message ... I tried to make a 'conventional' compression joint onto a chromed pipe - and fundamentally; it pulled off when pressurised. I twiddled one of the cylinder pipe cleaners thingy around it - abrading off the shiny chrome - and reconnected - voila -watertight; no drips. Without going into the metallurgy - I suspect that chrome is harder than the brass 'olive. Are olives supposed work by cutting into the pipe to a small extent? The question for me with stainless pipe was brass or copper olives. I tried brass first but drips could not be stopped. 2nd with copper olives was ok. As copper olives are much softer than the stainless, the copper olive must be deforming to take up any imperfections in the pipe - but is there as possibility it might blow off later as it can't have cut into the stainless? Are there any special olives for stainless pipe? Roger R |
#8
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Compression fittings on chrome pipe
wrote:
I am debating the best type of connection for joining tap connectors to 22mm chrome plated copper pipe. Not much to debate - compression is the only real option for chromed pipe. My plumbing skills are adequate but not exactly neat so I am unsure whether to use solder ring or compression fittings? I would have to file off the chrome for soldering and there's a very good chance the extra solder i put on (copying my plumber mate there) would surely run down the nice shiny chrome pipe and spoil it. Compression would be neater but the fittings are bulkier, also i'm not sure how the olives will grip on the chromed surface. If you leave the chrome in place then you will need to tighten the nut more than you would for an ordinary copper pipe joint. If you used chromed compression fittings and pipe clips it can all look quite neat. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#9
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Compression fittings on chrome pipe
wrote in message oups.com... Hi All I am debating the best type of connection for joining tap connectors to 22mm chrome plated copper pipe. My plumbing skills are adequate but not exactly neat so I am unsure whether to use solder ring or compression fittings? I would have to file off the chrome for soldering and there's a very good chance the extra solder i put on (copying my plumber mate there) would surely run down the nice shiny chrome pipe and spoil it. Wipe the excess off with a cloth while it is still hot. Assuming you use a water approved flux, the excess will not bond to the chrome. Compression would be neater but the fittings are bulkier, also i'm not sure how the olives will grip on the chromed surface. Any tips or pointers Gents? You should take the chrome off for any type of fitting. Heating the end of the pipe and dipping it in hydrochloric acid is my preferred method, but not one I would recommend for the inexperienced. Colin Bignell |
#11
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Compression fittings on chrome pipe
Thanks All for your insight
The pipe is copper and I have have successfully soldered the other end of the pipe that is going under the floorboards without leaks under mains pressure (by taking the chrome off first) Think I'll be taking the compression route and taking off the chrome plating where the olive will be sited. Do I need to be careful not to overtighten on compressions? |
#12
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Compression fittings on chrome pipe
wrote in message ups.com... Thanks All for your insight The pipe is copper and I have have successfully soldered the other end of the pipe that is going under the floorboards without leaks under mains pressure (by taking the chrome off first) Think I'll be taking the compression route and taking off the chrome plating where the olive will be sited. Do I need to be careful not to overtighten on compressions? Hand tight plus half a turn is the traditional advice, but I find that people have different values for hand tight. Colin Bignell |
#13
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Compression fittings on chrome pipe
"nightjar .uk.com" nightjar@insert my surname here wrote in message ... wrote in message ups.com... Thanks All for your insight The pipe is copper and I have have successfully soldered the other end of the pipe that is going under the floorboards without leaks under mains pressure (by taking the chrome off first) Think I'll be taking the compression route and taking off the chrome plating where the olive will be sited. Do I need to be careful not to overtighten on compressions? Hand tight plus half a turn is the traditional advice, but I find that people have different values for hand tight. Colin Bignell IIUI there is absolutely no need to remove the chrome plating under the olive, the olive will crush seal onto the chrome quite satisfactorily AWEM |
#14
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Compression fittings on chrome pipe
My next challenge seems to be sourcing the fitting I need!
Does this fitting exist?: 22mm to 3/4 bent tap connector (compression) Ringing round I can't find one anywhere?? |
#15
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Compression fittings on chrome pipe
wrote in message ups.com... My next challenge seems to be sourcing the fitting I need! Does this fitting exist?: 22mm to 3/4 bent tap connector (compression) Ringing round I can't find one anywhere?? Try BES part number 7417 http://www.bes.ltd.uk/ AWEM |
#16
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Compression fittings on chrome pipe
On Mon, 02 Apr 2007 08:59:06 -0700, oldskoolskater wrote:
Any tips or pointers Gents? Compression with brass olives. (just my 0.02 euros'orth :-)) |
#17
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Compression fittings on chrome pipe
"Brian Sharrock" wrote in message ... "Fred" wrote in message ... "Brian Sharrock" wrote in message ... "Dave Fawthrop" wrote in message ... On 2 Apr 2007 08:59:06 -0700, wrote: |!Hi All |! |!I am debating the best type of connection for joining tap connectors |!to 22mm chrome plated copper pipe. |!My plumbing skills are adequate but not exactly neat so I am unsure |!whether to use solder ring or compression fittings? |!I would have to file off the chrome for soldering and there's a very |!good chance the extra solder i put on (copying my plumber mate there) |!would surely run down the nice shiny chrome pipe and spoil it. |!Compression would be neater but the fittings are bulkier, also i'm not |!sure how the olives will grip on the chromed surface. Are you sure that the pipe is chrome plated copper? scratch it and see! I have used stainless steel pipe with compression fittings, no problems. -- Dave Fawthrop sf hyphenologist.co.uk I have used 15mm chromed copper pipes with compression fittings - just sandpaper off the chrome to reveal copper below. Why? Won't the olive cut through the chrome and create a good seal without removing any chrome? Why? Experience! I tried to make a 'conventional' compression joint onto a chromed pipe - and fundamentally; it pulled off when pressurised. I twiddled one of the cylinder pipe cleaners thingy around it - abrading off the shiny chrome - and reconnected - voila -watertight; no drips. Without going into the metallurgy - I suspect that chrome is harder than the brass 'olive. I've only got two such joints in the house - a chrome downpipe-feed into the toilet's cistern. [The toilet cistern's connection cum service valve is chrome and I opined that a Cu feed pipe would look naff] ... however next time I'll channel the (rear) wall and not have any supply pipe visible. with the service valve inside the cistern. It's astonishing how 'tunnel vision' overcomes one when the 'bog' is out-of-service for even a short time. I'm rather surprised. Olives bind onto copper pipe through shrinkage and a thin layer of chrome shouldn't have any effect. If there's any doubt I would give the fitting another 1/2 turn to ensure the olive shrinks down and binds onto the pipe. |
#18
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Compression fittings on chrome pipe
"Fred" wrote in message ... "Brian Sharrock" wrote in message ... "Fred" wrote in message ... "Brian Sharrock" wrote in message ... "Dave Fawthrop" wrote in message ... On 2 Apr 2007 08:59:06 -0700, wrote: |!Hi All |! |!I am debating the best type of connection for joining tap connectors |!to 22mm chrome plated copper pipe. |!My plumbing skills are adequate but not exactly neat so I am unsure |!whether to use solder ring or compression fittings? |!I would have to file off the chrome for soldering and there's a very |!good chance the extra solder i put on (copying my plumber mate there) |!would surely run down the nice shiny chrome pipe and spoil it. |!Compression would be neater but the fittings are bulkier, also i'm not |!sure how the olives will grip on the chromed surface. Are you sure that the pipe is chrome plated copper? scratch it and see! I have used stainless steel pipe with compression fittings, no problems. -- Dave Fawthrop sf hyphenologist.co.uk I have used 15mm chromed copper pipes with compression fittings - just sandpaper off the chrome to reveal copper below. Why? Won't the olive cut through the chrome and create a good seal without removing any chrome? Why? Experience! I tried to make a 'conventional' compression joint onto a chromed pipe - and fundamentally; it pulled off when pressurised. I twiddled one of the cylinder pipe cleaners thingy around it - abrading off the shiny chrome - and reconnected - voila -watertight; no drips. Without going into the metallurgy - I suspect that chrome is harder than the brass 'olive. I've only got two such joints in the house - a chrome downpipe-feed into the toilet's cistern. [The toilet cistern's connection cum service valve is chrome and I opined that a Cu feed pipe would look naff] ... however next time I'll channel the (rear) wall and not have any supply pipe visible. with the service valve inside the cistern. It's astonishing how 'tunnel vision' overcomes one when the 'bog' is out-of-service for even a short time. I'm rather surprised. Olives bind onto copper pipe through shrinkage and a thin layer of chrome shouldn't have any effect. If there's any doubt I would give the fitting another 1/2 turn to ensure the olive shrinks down and binds onto the pipe. Yep! {as I've stated , my experience is of only two} ... tried the 'normal amount of torque'; turned water ON; both connections spurting water; tried re-tightening the nuts, water spurting still; dismantled junctions, sand-papered off chrome; reassembled - new olives (just to be safe), tightened (normally) reapplied water - no drips. [I learnt from that ...]. BTW; I can't agree that distortion under pressure equates to 'shrinkage'. -- Brian |
#19
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Compression fittings on chrome pipe
"Andrew Mawson" wrote in message ... .... IIUI there is absolutely no need to remove the chrome plating under the olive, the olive will crush seal onto the chrome quite satisfactorily You need the olive to cut into the copper for a secure seal. Chrome is hard, which makes it difficult to break through, and brittle, which means it will crack and break into pieces, rather than deform, potentially making the seal less secure. Colin Bignell |
#20
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Compression fittings on chrome pipe
"nightjar .uk.com" nightjar@insert my surname here wrote in message news "Andrew Mawson" wrote in message ... ... IIUI there is absolutely no need to remove the chrome plating under the olive, the olive will crush seal onto the chrome quite satisfactorily You need the olive to cut into the copper for a secure seal. Chrome is hard, which makes it difficult to break through, and brittle, which means it will crack and break into pieces, rather than deform, potentially making the seal less secure. Colin Bignell But so is stainless steel much harder than copper. I've installed loads of stainless 15mm in high pressure hydraulic oil systems using normal 15mm compression fittings in an agressive foundry environment, and the only leak I've ever had was when a steel billet was dropped on the pipe! Even then the joint was ok but the pipe fractured !!! AWEM |
#21
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Compression fittings on chrome pipe
In article , Brian Sharrock
writes BTW; I can't agree that distortion under pressure equates to 'shrinkage'. Agreed, it's a very misused word, used extensively in retail to describe staff theft (theft by staff :-). -- fred Plusnet - I hope you like vanilla |
#22
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Compression fittings on chrome pipe
"Andrew Mawson" wrote in message ... .... But so is stainless steel much harder than copper. The important difference is that stainless is ductile, while chromium is brittle. Colin Bignell |
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