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#1
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Mastry, my Yanmar distributor, does not like the paper towel filters AT
ALL. Doug Dotson wrote: I'n not convinced that these paper towel filter elements are a great thing. When I pull a sheet off of a roll I can usually notice a fine dust if I look close. Doug "Keith" wrote in message ... See http://www.trawlerworld.com/features_06.htm for a good polishing system based on the Gulf Coast F-1 filter and Walbro pump. I installed one like this on my Krogen and love it. "Rufus" wrote in message news:ORTwb.231078$9E1.1259476@attbi_s52... goggle "fuel polishing lv-ab" for starters Doug Dotson wrote: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Thanks! Doug s/v Callista -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#2
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I'n not convinced that these paper towel filter elements are a great
thing. When I pull a sheet off of a roll I can usually notice a fine dust if I look close. Doug "Keith" wrote in message ... See http://www.trawlerworld.com/features_06.htm for a good polishing system based on the Gulf Coast F-1 filter and Walbro pump. I installed one like this on my Krogen and love it. "Rufus" wrote in message news:ORTwb.231078$9E1.1259476@attbi_s52... goggle "fuel polishing lv-ab" for starters Doug Dotson wrote: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Thanks! Doug s/v Callista |
#3
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See http://www.trawlerworld.com/features_06.htm for a good polishing system
based on the Gulf Coast F-1 filter and Walbro pump. I installed one like this on my Krogen and love it. "Rufus" wrote in message news:ORTwb.231078$9E1.1259476@attbi_s52... goggle "fuel polishing lv-ab" for starters Doug Dotson wrote: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Thanks! Doug s/v Callista |
#4
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![]() "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#5
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I don't have a filter problem, I have a pump question.
Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#6
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You need to look at depth filtration for polishing vs. surface filtration
like the Racors. They will clog up very fast if you have dirty fuel. See the link I posted earlier, and take a look at depth filters like the GCF F-1 or Jr. "Doug Dotson" wrote in message ... I don't have a filter problem, I have a pump question. Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#7
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Good point. I am painfully aware of how fast a Raycor clogs up
with dirty fuel ![]() Doug "Keith" wrote in message ... You need to look at depth filtration for polishing vs. surface filtration like the Racors. They will clog up very fast if you have dirty fuel. See the link I posted earlier, and take a look at depth filters like the GCF F-1 or Jr. "Doug Dotson" wrote in message ... I don't have a filter problem, I have a pump question. Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#8
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Good point. I am painfully aware of how fast a Raycor clogs up
with dirty fuel ![]() Doug "Keith" wrote in message ... You need to look at depth filtration for polishing vs. surface filtration like the Racors. They will clog up very fast if you have dirty fuel. See the link I posted earlier, and take a look at depth filters like the GCF F-1 or Jr. "Doug Dotson" wrote in message ... I don't have a filter problem, I have a pump question. Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#9
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Thats entirely untrue (Im being 'kind' here)
If you generate a bacterial slime/gel, that slime will 'de-polarize' and block the flow based on surface area. Just compare the surface of an open spaced (pleats not toughing together) pleated filter versus the surface area of a cylindrical paper roll. Also show me ANY data that you have on removal capacity on a per weight basis vs. particle retention for a "roll of paper" filter. You can of course document to an industry wide standard OSU F-2 test stand test regime ???? I think not. Do you have any retention efficiencies versus face velocity or gpm/psid?? Whats the wet-strength of a roll of Charmin? Bounty? What is thier average retention rating? If you cant, its just SNAKE-OIL. In article , Keith wrote: You need to look at depth filtration for polishing vs. surface filtration like the Racors. They will clog up very fast if you have dirty fuel. See the link I posted earlier, and take a look at depth filters like the GCF F-1 or Jr. "Doug Dotson" wrote in message ... I don't have a filter problem, I have a pump question. Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#10
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What's untrue? That a racor element will clog up very fast if you have dirty
fuel? Actually the "surface area" would be much greater in a paper towel, since you are filtering through from one end to the other, while the racor only filters through the pleated surface. By the way, what do you mean by "de-polarize"? Are you saying that slime is magnetic? Or that they are polar molecules, like water? Maybe that's how those algae-x things work! Can you quote the specs for all those test methods you mentioned for a Racor... any racor/filter combination? Pick one. "Rich Hampel" wrote in message ... Thats entirely untrue (Im being 'kind' here) If you generate a bacterial slime/gel, that slime will 'de-polarize' and block the flow based on surface area. Just compare the surface of an open spaced (pleats not toughing together) pleated filter versus the surface area of a cylindrical paper roll. Also show me ANY data that you have on removal capacity on a per weight basis vs. particle retention for a "roll of paper" filter. You can of course document to an industry wide standard OSU F-2 test stand test regime ???? I think not. Do you have any retention efficiencies versus face velocity or gpm/psid?? Whats the wet-strength of a roll of Charmin? Bounty? What is thier average retention rating? If you cant, its just SNAKE-OIL. In article , Keith wrote: You need to look at depth filtration for polishing vs. surface filtration like the Racors. They will clog up very fast if you have dirty fuel. See the link I posted earlier, and take a look at depth filters like the GCF F-1 or Jr. "Doug Dotson" wrote in message ... I don't have a filter problem, I have a pump question. Doug "Lew Hodgett" wrote in message hlink.net... "Doug Dotson" writes: I am designing a fuel polishing and transfer system. My thought is to use valves to route fuel from any tank to any tank. No problem with that part. I want to be able to just transfer fuel or switch in a filter to polish the fuel while transferring. Since I can select the same tank for source and destination, I can polish fuel in place as well. The problem comes with the selection of a pump. I was looking at a Groco or Jabsco pump which seems good for transfer purposes, but way exceeds the flowrate of the filter when polishing. A Walbro fuel pump (which I have as a priming pump now) seems like a good fit for polishing (33 GPH) but will be slow when just transferring fuel. What happens when a 5.5 GPM pump (Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)? Have built the system above which BTW, uses a lot of 1/2" bronze ball valves. You solve the filter problem in a straight forward fashion. Multiple filters (Larger than 500) in parallel to reach at least 60 GPH. I'd built in a safety margin and shoot for at least 75 GPH. HTH -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
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