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Results 1 to 10 of 10
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8th February 2008, 08:39 AM #1
Pipe gauge ??? for you plumbing boys
Guys, been nearly 20yrs from my coppersmithing days when I used to build Hospiital Sterilizers.
Anyway, I want to install a an airline in my 2 sheds and I am thinking of using 3/4" tube for main line with 1/2" for the droplines.
Should I use 16# or 18#?
Also want to put a drain valve on the end of each drop line to keep the condensation to a minimum, was think of 3/8 ball valve, what do you reckon or is there a cheaper valve out there that would be up to the job?
Hopefully I won't get too much condensation in the line as I will be building a condenser for it as well.
So with all that in mind, what should I be expected to pay roughly for;
3/4" tube 16 or 18# hard drawn 6mt lengths
1/2" tube 16 or 18# hard drawn 6mt lengths
3/8" ball valves
Thanks for ya helpCheers
DJ
ADMIN
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8th February 2008, 10:34 AM #2
- $2.00 per fitting- nipples, tees, elbows,
- class b copper is what you need,
- 1/2 inch - $30 check with your local
- 3/4 inch - $45 supplier on these
- Brass ball valve $5.00
- Use 15% silver soder due to high stresses involved ( it's more flexible)
- run pipe at slight fall to drain end ideal 20mm/M, no less than 10mm/M
- Use gas thread tape and gas thread seal paste.
Prices vary from state to state quite a bit so you'll need to ring a plumbing supplier.dIf you dont play it, it's not an instrument!
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8th February 2008, 11:29 AM #3
Ring Master
- Join Date
- May 2006
- Location
- Lake Macquarie NSW Australia
- Posts
- 4
So thats the reason we don't have enough hospitals!
D J - sterilized them 20 years ago!
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8th February 2008, 12:53 PM #4
Thanks bricks
, that gives me a starting point, won't look like a complete dill when I walk in the plumbing supplies joint.
you're a funny man Linden, didn't build them quite that big, but did build one big enough to drive a couple of Mini's into
.
Cheers
DJ
ADMIN
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8th February 2008, 01:01 PM #5Cheers.
Vernon.
__________________________________________________
Bite off more than you can chew and then chew like crazy.
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8th February 2008, 02:31 PM #6
Senior Member
- Join Date
- Jul 2007
- Location
- Sydney-south
- Posts
- 333
May I just add that off your main 3/4 run, take the 1/2 branches off the top and back down, this will eliminate NEARLY all condensation going down to the valve and still run the main line with slight fall with a tail pipe at the end. Dont use white tape, its rubbish. You can use either the pink or yellow stuff, the yellow stuff is formulated a little differently as hydrocarbon gases for some reason has a reaction to something in the tape which makes it harden and crack. As Bricks said type B copper tube is the way to go, I belive that 5% silver will do the job, compressed air wont out perform the solder and its around $12 cheaper PER STICK!!!!
$45 for a length of 3/4, man im driving to Adelaide to buy a sling!!!!
$45 is the absolute dirt cheapest you'd be lucky to find here as a plumber off the street and it will be the korean or chinese stuff. A mate of mine who works for a large construction mob says they buy it by the container from china in 12m lengths, at around $1 per metre for 3/4!!!!Plumbers were around long before Jesus was a carpenter
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8th February 2008, 03:04 PM #7
Cheers W/P, did have the drop lines coming off the top in mind, with the drain valve about a foot or so below the connection point. Also going to have the mainline looped so that it is endless.
Thanks for the explaining the differences on the tape too.
I do have quite a few rods of different grades so I have several choices and won't be needing to buy any, also have at least 50 rods of 56% silver solder, so could use that, at $19 to $21 a stick I don't think so
I'll save that for the higher quality work
.
Cheers
DJ
ADMIN
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8th February 2008, 10:10 PM #8
China
- Join Date
- Dec 2005
- Location
- South Australia
- Posts
- 140
Unless you you have the tubr already go for the plastic airline tube it's great stuff no soldering just conects with screw fittings drain valves atc all available to suit
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9th February 2008, 10:15 PM #9
China
- Join Date
- Dec 2005
- Location
- South Australia
- Posts
- 140
Dj the product I refered to is MaXair, as I said if you don't already have tubing give this a look it's the best and simplest system I have ever used
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9th February 2008, 10:20 PM #10
Cheers China, will have a look into it
Cheers
DJ
ADMIN
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