Biopowered - vegetable oil and biodiesel forum
Biodiesel => Biodiesel equipment => Topic started by: julianf on November 29, 2012, 10:35:30 AM
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Hello,
Im after a NRV for my bio storage tank. It will always be submerged in bio.
The one that ive just purchased (for something else) has a disc of red 'rubber' type stuff on it, that i expect to be unsuitable for bio. This is the one i just bought -
(http://i.ebayimg.com/t/Pond-Foot-Valve-with-strainer-3-4-hose-connection-Brass-/10/!CFsKhjQ!2k~$(KGrHqYOKkQE0ZCMWsf5BNV9-ZRhpQ~~_1.JPG)
(but, as i say, it was more for the strainer than the valve, and it will be for veg anyhow)
Anyhow, can someone recommend me one for use with bio?
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Would it be possible to replace the disk with something else?
Mind you it might be fine as is - I had a NRV (only 8mm though) on the car and that was fine, it had a similar red material. Mine stopped working as it got a lump of rust jammed in it (it was before the car's filter).
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Why don't you just put the one you've just bought in a jar of biodiesel and see what happens to it. It's that simple.
Nige
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Im not intending to use the one ive just purchased for bio. So, if i run a 'test' on it, and it fails, ive done for that one too : (
I recon the disc could be replaced, but i have nothing suitable here, and dont want the bother on a part that i want to use in the very near future.
I would consider buying another the same as above to run a test on, and then replace the seal if needed.
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I have a standard brass one from BES which has been submerged in my bio storage tank or the best part of three years and still works.
Part number 7524 for 3/4" inch BSP female or 7525 for one inch BSP female
(http://www.bes.ltd.uk/products/graphics/7521.gif)
I dont have a strainer on mine, rather I have a BSP male to compression elbow screwed into the end which then has my floating pickup attached. The check valve lives at the bottom of the tank and, other than getting a bit of a green coating, has never been a problem.
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Thanks Julian - thats spot on the the information that will sort me out. Ill add one to the next order (i only received a package from bes a couple of days ago!)
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How easily does it open? I'm wondering if it would be ok in my fuel system, as I've removed the Delica's stock filter which incorporates one in the priming head. Now my fuel drains back to the tank when parked up.
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Quite easily - I could blow through it with my mouth. As far as I am aware, human lungs can only generate 1 or 2 psi so therefore not a lot of pressure difference needed to open it.
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:(
Quite easily - I could blow through it with my mouth. As far as I am aware, human lungs can only generate 1 or 2 psi so therefore not a lot of pressure difference needed to open it.
Thanks Jules, sounds ideal.
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Ref the BES check valve, anyone know where I can get one with a basket strainer?
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Hello,
Im after a NRV for my bio storage tank. It will always be submerged in bio.
The one that ive just purchased (for something else) has a disc of red 'rubber' type stuff on it, that i expect to be unsuitable for bio. This is the one i just bought -
(http://i.ebayimg.com/t/Pond-Foot-Valve-with-strainer-3-4-hose-connection-Brass-/10/!CFsKhjQ!2k~$(KGrHqYOKkQE0ZCMWsf5BNV9-ZRhpQ~~_1.JPG)
(but, as i say, it was more for the strainer than the valve, and it will be for veg anyhow)
Anyhow, can someone recommend me one for use with bio?
Where did you get this one from Julian ?
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What's it for? WVO collection or fuel system?
I've got this in my fuel system now with a separate course filter before it:
(http://img15.imagefra.me/i5c6/tttonyyy/t80e_fe7_u886p.jpg)
But if you were after a pump footer with valve this would be the kind of thing to use:
http://www.ebay.co.uk/itm/3-4-BSP-PUMP-CHECK-FOOT-VALVE-STRAINER-NON-RETURN-NEW-/190391382609
For WVO use though I would say the mesh blocks easily unless the oil is stood for a while first so sediment drops out.
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What's it for? WVO collection or fuel system?
I've got this in my fuel system now with a separate course filter before it:
(http://img15.imagefra.me/i5c6/tttonyyy/t80e_fe7_u886p.jpg)
But if you were after a pump footer with valve this would be the kind of thing to use:
http://www.ebay.co.uk/itm/3-4-BSP-PUMP-CHECK-FOOT-VALVE-STRAINER-NON-RETURN-NEW-/190391382609
For WVO use though I would say the mesh blocks easily unless the oil is stood for a while first so sediment drops out.
Hi Tony, I have the one in your ebay link and want a course one like Julians, it's for transferring wvo. The Ebay one blocks with suspended grit that wont drop out from some places.
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Steve is doing things slightly different... But when I get my processor back (or build a new one), I'm thinking of a flat 205 litre tank that I have with an immersion heater in it. Just dump the feedstock in unstrained, then heat and pull up with a self-priming pump using a foot valve with a strainer (so as not to hurt pump). With the oil at say, 70 deg, I could pump the oil into the processor.
If the strainer gets a bit blocked, it would be no big deal with the oil being very thin / hot
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http://www.ebay.co.uk/itm/3-4-BSP-PUMP-CHECK-FOOT-VALVE-STRAINER-NON-RETURN-NEW-/190391382609
That'll do me!
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Could try this one?
http://www.ebay.co.uk/itm/1-SUCTION-HOSE-STRAINER-WATER-PUMP-DRAINAGE-IRRIGATION-/120546380508
I have one on a pump and it doesn't easily block when shifting WVO, but unlike the other brass one linked earlier in the thread I don't think you could get quite as much out with it before it starts sucking air (I tip the barrels to get as much out as possible).
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Steve is doing things slightly different... But when I get my processor back (or build a new one), I'm thinking of a flat 205 litre tank that I have with an immersion heater in it. Just dump the feedstock in unstrained, then heat and pull up with a self-priming pump using a foot valve with a strainer (so as not to hurt pump). With the oil at say, 70 deg, I could pump the oil into the processor.
If the strainer gets a bit blocked, it would be no big deal with the oil being very thin / hot
As Steve says though they do block with bits in the oil, you might want something a bit courser into the pump and finer filtration on the pump discharge (10" housing with course filter, or a Y trap?)
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Steve is doing things slightly different... But when I get my processor back (or build a new one), I'm thinking of a flat 205 litre tank that I have with an immersion heater in it. Just dump the feedstock in unstrained, then heat and pull up with a self-priming pump using a foot valve with a strainer (so as not to hurt pump). With the oil at say, 70 deg, I could pump the oil into the processor.
If the strainer gets a bit blocked, it would be no big deal with the oil being very thin / hot
As Steve says though they do block with bits in the oil, you might want something a bit courser into the pump and finer filtration on the pump discharge (10" housing with course filter, or a Y trap?)
Hmm been wondering about a y strainer, not the filter housing though - don't really want anything other than straining until after washing / drying. Normally 400 micron straining is okay, then glyc wash - or am I missing something?
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http://www.ebay.co.uk/itm/3-4-BSP-PUMP-CHECK-FOOT-VALVE-STRAINER-NON-RETURN-NEW-/190391382609
That'll do me!
Mate that's the one I have and it was blocking at least twice in every 10 litres after straining through the kitchen sieve.
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Might be luck of the draw with the oil then, as I have the 1" version and can pump 60l at a time through it direct from the drums, though it does need unblocking from time to time.
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Hello,
Im after a NRV for my bio storage tank. It will always be submerged in bio.
The one that ive just purchased (for something else) has a disc of red 'rubber' type stuff on it, that i expect to be unsuitable for bio. This is the one i just bought -
(http://i.ebayimg.com/t/Pond-Foot-Valve-with-strainer-3-4-hose-connection-Brass-/10/!CFsKhjQ!2k~$(KGrHqYOKkQE0ZCMWsf5BNV9-ZRhpQ~~_1.JPG)
(but, as i say, it was more for the strainer than the valve, and it will be for veg anyhow)
Anyhow, can someone recommend me one for use with bio?
Where did you get this one from Julian ?
Hi there,
This was the ebay link -
http://www.ebay.co.uk/itm/310477264827
They had a load, and did not seem to sell them all, so worth a mail, i think?
I purchased the unit to go on the end of my wvo 'sucker up' hose, before my mono pump. I wanted a corse basket so as to stop snails etc blocking the pipework, but to otherwise let as much as possible through.
I had a mesh basket before, but it blocked so very quickly.
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Thanks mate! Sent him a mgs. I'll post if he has some left.
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Perfect for my needs, have msg him too. Thanks Julian
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I think I have a bunch of 3/4 bsp x 3/4 brass tails somewhere. You wanna put the order together and save a bit of postage?
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The seller's going to list the foot valves this afternoon. He'll combine postage too for anyone around here that wants one 8)
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The seller's going to list the foot valves this afternoon. He'll combine postage too for anyone around here that wants one 8)
Yes just heard from him too. I just want the one if you are going to buy.
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If he does relist post the link here and I'll pick one up too, looks too useful to pass for the price!
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There u go:
http://www.ebay.co.uk/itm/Pond-Foot-Valve-with-strainer-3-4-hose-connection-Brass-/310551441041?pt=UK_HomeGarden_Garden_PondsWaterFeatures_UK&hash=item484e4eee91 (http://www.ebay.co.uk/itm/Pond-Foot-Valve-with-strainer-3-4-hose-connection-Brass-/310551441041?pt=UK_HomeGarden_Garden_PondsWaterFeatures_UK&hash=item484e4eee91)