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Biodiesel => Biodiesel equipment => Topic started by: Julian on December 31, 2013, 04:10:21 PM

Title: Exhaust tubing as processor pipe work.
Post by: Julian on December 31, 2013, 04:10:21 PM: Has anybody considered this? Standard screwed piping seem very heavy for the low pressures we use.

Although not cheap nice preformed bends can be bought and it's available in quite large bore sizes. Brass fittings could be silver soldered where required or steel ones welded. Where joints are needed for dismantling flanges could be fabricated.
Title: Re: Exhaust tubing as processor pipe work.
Post by: greasemonkey on December 31, 2013, 05:02:08 PM: Not a bad idea, can't see much of a down side to it. Flanges can be bought, complete with gasket.
It's not a huge amount of pipe in a processor, A raid on a scrap yard could probably get enough, especially if someone is a bit handy with a mig.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Head Womble on December 31, 2013, 06:20:33 PM: I like the idea, you could also use stainless steel tube if pockets are deep enough.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Jamesrl on December 31, 2013, 06:53:09 PM: You can soft solder brass to steel.

Be very careful if you choose to silver solder, the melting point of silver solder is rather close to that of brass.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Julian on December 31, 2013, 07:31:34 PM: Quote from: Jamesrl on December 31, 2013, 06:53:09 PM

Be very careful if you choose to silver solder, the melting point of silver solder is rather close to that of brass.

I know, I know, I've done it dozens of times.

I'd have a lot more luck silver soldering than combination than soft soldering.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Jamesrl on December 31, 2013, 07:59:24 PM: Quote from: Julian on December 31, 2013, 07:31:34 PM

I know, I know, I've done it dozens of times.

What, melt the brass?
Title: Re: Exhaust tubing as processor pipe work.
Post by: Julian on December 31, 2013, 08:24:59 PM: Quote from: Jamesrl on December 31, 2013, 07:59:24 PM
Quote from: Julian on December 31, 2013, 07:31:34 PM

I know, I know, I've done it dozens of times.

What, melt the brass?

Only when I wanted to cast it.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Jamesrl on December 31, 2013, 10:03:14 PM: Quote from: Julian on December 31, 2013, 08:24:59 PM
Quote from: Jamesrl on December 31, 2013, 07:59:24 PM
Quote from: Julian on December 31, 2013, 07:31:34 PM

I know, I know, I've done it dozens of times.

What, melt the brass?

Only when I wanted to cast it.

Yeh, right.
Title: Re: Exhaust tubing as processor pipe work.
Post by: Tony on December 31, 2013, 11:04:26 PM: IIRC there was some guy on VOD who had his processor pipework made up by some stainless exhaust company.