spider manifold

[keith1967]

what and where would you use a spider manifold?

 

[unguided1]

they used to be used on on microbore copper microbore systems

 

[keith1967]

can you be more specific please

 

[pnhsolutions]

microbore cenrtal heating/ Underfloor Heating!

 

[keith1967]

so why would it be used to reduce to 15mm

 

[unguided1]

They arent, they are usually reduced from 22mm down to 10 or 8mm, why the question
regards
Mike

 

[keith1967]

cheers mike, just managed to find out what one looks like. it seems like you would make it yourself using a 22mm coupler,

 

[danielp]

u cant make one, the old ones are split in the middle

 

[migoplumber]

the spider manifold is just a central distibution point. the flow and return was run from the boiler commonly in 22, to either 1 or 2 spider manifolds generally in the centre of the house. like mike says the manifold/s then have 8mm pipes feeding each individual radiator. 10 rads equals 10 stabbing on each manifold, looks like a spider.the older ones are type 1 pipe system with 20 stabbings, all compression fittings, when they start to leak.. nasty messhopefully ive managed to attatch photo of 1 i had to make for my neighbour!!shaun

 

[keith1967]

thanx shaun, very helpful, college assignment believe it or not... it's the plumbing GURU'S word of the week challenge....... THANX ALL.....

 

[migoplumber]

pleasure keith, wouldnt recommend making 1 tho. that took me about 5 hours, drilling out the 22 pipe with 8mm and silver soldering stubs in.

thats what happens when your neighbour knocks on the door at 8pm, with a dripping ceiling. go round 2 tighten a nut. everything pops. water all over the show. plumb centre quotes 300 quid and 8 days for delivery. i have 2 see neighbour everyday, his wife would of hated me for ages.

good luck at college

shaun

 

[unguided1]

Hi migoplumber
Nicely explained I knew what I wanted to say but couldnt put into words nicley cheers mate🙂
regards
Mike

 

[migoplumber]

know how you feel mike, i go through that same mental blur every morning when i have seen my first job and walked back to the van and think "now what......?!"
cheers.
shaun