Biopowered - vegetable oil and biodiesel forum
Biodiesel => Biodiesel equipment => Topic started by: K.H on January 28, 2013, 10:20:19 PM
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Im looking for a quick release coupling that shuts the flow off when disconnected, these look like they may be suitable but im not sure that they shut the flow off, any opinions?
http://www.ebay.co.uk/itm/MACDONALD-Male-Female-Hydraulic-Quick-Release-Action-Coupling-Type-HF-/130831671887?pt=LH_DefaultDomain_3&hash=item1e762ce24f&_uhb=1
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Think those will do. Hydraulic couplings have to seal but don't know if the seals inside will be bio proof.
Dick
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Cheers Dick, only for WVO transferring so think i will buy some
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there about 10mm ID going by tape measure
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hmm i see now cant leave pipe on.......
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i dont know if you got them, but im pretty sure the iso ones seal on both sides -
http://www.ebay.co.uk/itm/Hydraulic-Quick-Release-Coupling-1-2-BSPP-ISO-A-FF-/270786588590?pt=LH_DefaultDomain_3&hash=item3f0c236fae
i have a set (somwhere) but ive never put them into service, and cant recall the exact details.
theyre not too expensive for smaller bores.
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Some of these -
http://www.oilybits.com/hose-couplings-reels/hose-connectors/cam-and-groove-couplings/prod_290.html
and some full bore butterfly valves (which are often real cheap at BES) may work out better for preserving the bore / flow ?
possibly cheaper too, if a little more awkward to use?
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The oilybits ones are good prices but the only metal ones are Aluminium? I'd love to have some quick release connectors but they're just so expensive...
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The fear of aluminium =- aren't all the spin on filter heads (in landrovers etc) all aluminium?
Or were you wanting them for bio processing (where the caustic will be present?)
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The fear of aluminium =- aren't all the spin on filter heads (in landrovers etc) all aluminium?
Think Bosch IP body is ally too. I think this is why we like to remove all the Methanol before it gets to the car.
Or were you wanting them for bio processing (where the caustic will be present?)
Mostly for WVO/bio transfer in my case. Maybe it's not such an issue for this?
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Im sure its just a slip up, but its the caustic that does for ally, not the meth.
I realised quite how it reacted with some metals, when i got a trace amount on some galvanised.
My personal suspicion is that well made bio has very limited caustic in it - of course, this is whats being titrated for by the acid wash method.
I (personally) would have no issue using the fittings for bio transfer - indeed, you could look at is this way - an early warning system for if your bio is still reactive!
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Im sure its just a slip up, but its the caustic that does for ally, not the meth.
I'm sure that's true too, but Methanol strips off the oxide layer on Aluminium, which then allows the surface to oxidise further with any dissolved oxygen (and Methanol acts as an oxidising agent too).
Methanol and Aluminium are not buddies :)
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...you learn something new every day! : )
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Watch this... if the installers of the aluminium-finned flame arrester had known it, then two of the chaps fitting the roof may not have died.
https://www.youtube.com/watch?v=yYgJcnzr_2k
Scary stuff!
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Im sure its just a slip up, but its the caustic that does for ally, not the meth.
I'm sure that's true too, but Methanol strips off the oxide layer on Aluminium, which then allows the surface to oxidise further with any dissolved oxygen (and Methanol acts as an oxidising agent too).
Methanol and Aluminium are not buddies :)
We went through this on the VOD. I got info from my mate (yes Keith I do have a few!) with a PhD in chemistry who advised that the effect was at a microscopic level. It would take years for Methanol to have a serious effect on anything of reasonable thickness.
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That's interesting. At the risk of going too far off topic there used to be a bio producer down my way that winterised his commercial biodiesel with Methanol.
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Watch this... if the installers of the aluminium-finned flame arrester had known it, then two of the chaps fitting the roof may not have died.
https://www.youtube.com/watch?v=yYgJcnzr_2k
Scary stuff!
Nasty. Easy to see how it could happen. Seems a bit thtupid making the flash arrestor out of aluminium in the first place mind. Its surely going to corrode up over time, with or without the Methanol. Although, to be fair, they did say it should have been serviced every 12 months.
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Im looking for a quick release coupling that shuts the flow off when disconnected, these look like they may be suitable but im not sure that they shut the flow off, any opinions?
http://www.ebay.co.uk/itm/MACDONALD-Male-Female-Hydraulic-Quick-Release-Action-Coupling-Type-HF-/130831671887?pt=LH_DefaultDomain_3&hash=item1e762ce24f&_uhb=1
Where / how were you thinking of using them?
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When i bund the wash tank and processor the wvo storage tank will be a few feet away, so thats what they are for, the one i linked to arrived today and does NOT shut off :(
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When i bund the wash tank and processor the wvo storage tank will be a few feet away, so thats what they are for, the one i linked to arrived today and does NOT shut off :(
Stick something in the hole then like your di finger.
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When i bund the wash tank and processor the wvo storage tank will be a few feet away, so thats what they are for, the one i linked to arrived today and does NOT shut off :(
The Filtertechnik ones seal perfectly. They use them on the rigs, so it could be worth a call to Mike - see if they'll sell them as a part.
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When i bund the wash tank and processor the wvo storage tank will be a few feet away, so thats what they are for, the one i linked to arrived today and does NOT shut off :(
Stick something in the hole then like your di finger.
Its only a small hole, im sure you have something small i can borrow!
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I was under the impression you have a VERY small di er little finger, well so a certain lady told something like that at the BBB.
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Chunder is NO lady, ladies dont kiss and tell!
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Some of these -
http://www.oilybits.com/hose-couplings-reels/hose-connectors/cam-and-groove-couplings/prod_290.html
I think with all due consideration, despite being Aluminium, if these are used for oil transfer then they should be fine. I may well have to save up for a few of these for the new processor. Do the different "types" just designate different pipe fitments (male/female bsp/barb)?
What is the "Viton seal" they talk about? Is that just a sealing o-ring?
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so far as i can tell -
type a/d are a paid for connecting to male bsp
type c/e for hoses
type b/f for female bsp
and then, of course, you can mix and match as you see fit.
i want to get some for my mono pump - i use it for general purpose veg shifting, so it has a suction tube and a 30m 3/4 hose attatched... permenantly - which does not make for much fun when i want to move it about.
i dont think theyre 'complex' like the iso couplers, so i suspect the seal just sits in a recess somwhere, and, as it says -
All Fittings are supplied as standard with NBR seals, with Viton and NBR Filled Teflon (PTFE) available seperately
the stator in my mono is not viton, so ive never given these seals much thought!
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Chunder is NO lady, ladies dont kiss and tell!
Aha! so it is true about the tryst with our Chunder, I thought he was pulling my leg when he told me.
Oh ye', he said can he have is pants back, they're the only ones he has without holes in'm.
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Chunder is NO lady, ladies dont kiss and tell!
Aha! so it is true about the tryst with our Chunder, I thought he was pulling my leg when he told me.
Oh ye', he said can he have is pants back, they're the only ones he has without holes in'm.
Sorry no can do, last I saw of them they were powering a sailing ship across the Atlantic
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Sorry no can do, last I saw of them they were powering a sailing ship across the Atlantic
So from your last two replies you're confirming there has been a relationship with said lady and that you kept his pants as a trophy.
Nuff said.
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Jealousy can be a terrible thing!
Oh and the other half wants to know who your avatar is?
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Oh and the other half wants to know who your avatar is?
I'm not surprised, he's a bloody site better looking than you!
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Oh and the other half wants to know who your avatar is?
I'm not surprised, he's a bloody site better looking than you!
Says the bloke that looks like a rat peeking out a hedge
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Oh and the other half wants to know who your avatar is?
Me of course, when is was a little younger, good looking bugger wasn't I
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Her money is on Eminen, i think more M&M,s
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Her money is on Eminen, i think more M&M,s
He did copy my style I must admit, even had plastic surgery to copy my image.
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Her money is on Eminen, i think more M&M,s
He did copy my style I must admit, even had plastic surgery to copy my image.
I could of done that for nowt, me and my trusty baseball bat!
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Her money is on Eminen, i think more M&M,s
Oh dear, one more brain cell and you could work it out for yourself. Picture property ... http://www.biopowered.co.uk/forum/avatars/Musicians/Eminem.jpg
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Oh and the other half wants to know who your avatar is?
I'm not surprised, he's a bloody site better looking than you!
Says the bloke that looks like a rat peeking out a hedge
A hedge is merely a row of bushes ... I should be so lucky!
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A hedge is merely a row of bushes ... I should be so lucky!
I had a box of brass bushes, never knew it was a hedge.
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Anyway im going for the ISO ones suggested by the sensible Julian as i want both sides to seal when disconnected as they will be used on transfer pipes, fed up bending the pipe double when i disconnect!