on Introduction. I used a check valve from what appears to be a fish tank setup (ACP was the supplier). I used an aquarium check valve because its hard to find a check valve like yours in our place. (2) A check valve with hose barb ends to fit 1/4" I.D. (See the next step.) http://www.plenty.org/soy/vacuumpump.html, https://www.instructables.com/id/E791HNXF23Z39P6/, Be Seen! I have an old pump which I'd love to be able to use again. I have been searching online for what I thought was a simple question with no luck and it is related to your post. The piece of hose should be long enough to accommodate the barb, and the barbed end of a check valve, but not much longer. Top subscription boxes right to your door, 1996-2022, Amazon.com, Inc. or its affiliates. (You might need a spacer such as a large nut to keep the hose barb from sticking all the way to the bottom of the threaded hole; I'm not sure.) Hey man would this be able to get 25psi in a vac chamber that's the minimum I need please get back thanks, 8 years ago Vacuum Sealer Bags for Comforters, Blankets, Bedding, Clothing! Sign In to access your account information. Question Once that's done, you can attach the long remainder of the hose to the other barb, in the same way; the other end is what you attach to whatever you're sucking from. That will ensure that it doesn't lose its seal, and that it doesn't slip off. (Part number 6079T53 from http://www.mcmaster.com )(Some people use an aquarium check valve, which costs about $2 at a pet shop. Try it out. The threads of the screw gripped the two bent-in pieces of metal and pulled them outward enough to make room for the ball to come out. braided PVC hose. Very nice. You can convert an old-fashioned "floor pump" ("bike pump") into a vacuum pump that can take over 75 percent of the air out of something. This lets air out, but not in; it's what's called a "ball check valve," and it's built right into the hose barb fitting. You could clean the oils off the exhaust hose fitting and the place it attaches, and epoxy it in backwards, with the hose barb pointing into the threaded hole. That's several times as strong as a vacuum cleaner's pull, and three quarters as strong as the best possible vacuum pump. You don't want to lose the grease and get it all over other things, so prop the shaft up with something to keep the piston disk off your work area. Is this why there's no suction? I just finished building the Vac pump in this "Instructable" and I was easily able to pull enough vacuum for the testing I use here at work. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. )Looking for a "floor pump" at an auto parts store is a better bet than looking for a "bike pump" at a bike shop.You'll also need:(1) Three or four feet of 1/4" I.D. About: I'm a research scientist who likes to design and build things, especially cheap, elegant tools for building things you wouldn't have thought you could make yourself. Diaphragm vacuum pumps are used in applications where corrosive fumes may be present. I was looking to use a syphon squeeze ball pump normally used to suck gas and other liquids, but use it to suck air and create a vacuum. can't fine one search result that says this will work although it makes a lot of sense that it should. Not looking for a project here just wanted to buy a syphon ball and use it to suck air like you did in your peeps video Do you think that this would work? thanks for your reply! (I used titanium-coated but very cheap drill bit from Harbor Freight.) )(3) (maybe) a power drill with a 1/8" drill bit suited for drilling a little bit of metal, or for the 2060-A, a screw and a screwdriver.Rags or paper towels are good, because you'll be dealing with greasy things. There may also be a piece of rubber in there that needs to be removed. I would want to use this for a Bell in a Jar experiment for our project. Thanks, I'm going to try it, but I'm going to use a tire valve stem with my vacuum chamber so I can use the hose that comes with the pump, Hello, how much Hg or bar can I expect from such a vacuum pump? A question came up over there about reversing the exhaust check valve rather than replacing it with the one from McMaster-Carr. I've searched for every autosupply and hardware store and they don't have it. Now cut a short piece of hose, about an inch or so long, and fit it over the hose barb. You need to get that off, so you can remove the hose. ya mean that hasn't been done yet? Thank you for posting this recipe! Once you've got the crimp off, work the hose off the fitting. (2) Pinch the rubber and metal disks together, and pull them off the end of the shaft. on Introduction. (5) Replace the nut and tighten it up, hand tight. Hand-Pump for Travel! Hello! I did that by inserting a screw into the end of the barb, and turning it with a screwdriver while holding the fitting with a wrench. (2) Insert the appropriate end of the barb into the litttle piece of hose. Now you can wipe the nasty grease off your fingers. You're half done. Mine cost about $4.00. Liquid ring vacuum pumps are used in applications that include small amounts of liquid. . Now examine the hose fitting carefully. Now you need to get that stuff back in the cylinder, and you don't want to scratch the piston disk on the sharp inside edge of the cylinder, so: (6) Pinch the rubber disk from the sides, into an oval shape, (7) Angle the shaft and the disk about 30 degrees relative to the open end of the cylinder, and insert one end of the oval, and (8) Gently work the rest of the disk into the cylinder, pushing it inward anyplace it seems to catch on the edge, and straighten the shaft. This is both a hose barb for attaching the hose, and a check valve we'll need to gut(5) reasonably long throw and reasonably large diameter (for a bike pump); a skinny pump will be slower, and(6) no pressure gauge. (2) Something that can cut thin metal, such as tin snips, a nipper, a hacksaw, or a rotary tool. The exhaust check valve is in the hose attachment fitting; you need to gut it so that air can flow freely into the pump through it. I got mine for 25 cents at a local tool place, but you'll likely have to buy a 2- or 4-pack at most hardware or auto parts stores, and pay a dollar or two.You'll also need few tools:(1) An adjustable wrench, or a non-adjustable one that fits the hose fitting on your pump. 14 years ago ), 7 years ago Vacuum pumps connect to systems for air or material removal such as filtration or packaging. There's an oval cavity inside it, and a little metal ball that can move back and forth in that cavity. Will this effective for a physics experiment? thanks. 14 years ago Drilling straight through fitting is not difficult, and may be a good idea anyway, if you want to go to the trouble. It may have a little more restriction than that other thing, but sometimes you need something available. hahahahahhahahahaha!! thanks for this post. The type and size of vacuum pump needed is based on the level of vacuum required, the application in which it is operating, and the type of material it is vacuuming. The 'lip' part of the piston disc is somewhat disintegrating. Once you have the ball out, check to see if you have a hole clear through the fitting. Of course I'd cite your vacuum solution as a means to the end :), 15 years ago . wowzers. But first you need to get the hose off, to get at the fitting to modify it. Access My Account, Order History, Lists and more here. When it gets sucked toward the pump on the upstroke, it makes a seal, but when it gets blown toward the hose on the downstroke, it doesn't. Reply Apparently this instructable is the "hack of the day" over on www.hackaday.com; cool. In my case, I tapped the fitting on the table a few times, and a little piece of rubber just fell out. 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Price and other details may vary based on product size and color. Only digits are allowed. It should be snug; work it in most of the way. For my Slime 2060-A, it was easier than that. on Introduction. Can this run 25 psi I need a pump that can but don't want to spend a lot of money. Now (1) Unscrew the nut on the end. on Introduction, Thanks for share information about air vacuum pumps. can anyone help me build a vacuum pump using a foot air pump with pressure gauge? 3D Printed Bike Lights With Fusion 360, Summer Holidays for Chicken (using Poor Man's Fibreglass). on Introduction, Thanks for share article about EVP Vacuum Solution! Pry and bend and tear it apart bit by bit.) Thanks for the inspiration. Your recently viewed items and featured recommendations, Select the department you want to search in. There is a piece of thin metal crimped around the end of the hose, to clamp it onto the fitting. 9 months ago tubing. (sorry..), 7 years ago on Introduction. Hi. Once you've drilled it, blow the metal shavings out. Maximum amount of digits: 6. Is the lip replaceable? You don't want them getting in the pump. (Jumbo 10 pack), FoodSaver 31161370 Cordless Food Vacuum Sealer, Handheld, BLACK+DECKER dustbuster Cordless Handheld Vacuum, Flexi Blue/Grey/White (HHVI315JO42), Mityvac MV7300 Pneumatic Air Operated Fluid Evacuator with Accessories for Draining Engine Oil or Transmission Fluid Directly Through The Dipstick Tubes, Robinair 15800 VacuMaster Economy Vacuum Pump - 2-Stage, 8 CFM, CHROME, Amazon Basics Vacuum Compression Storage Bags with Hand Pump - 12-Pack (3 Jumbo, 3 Large, 3 Medium, 3 Small), Robinair (15500) VacuMaster Economy Vacuum Pump - 2-Stage, 5 CFM , Red, XUTAI Vacuum Storage Bags - 9 Packs Space Saver Bags Vacuum Storage Bags (3 Large, 3 Medium, 3 Small ) with Pump, 80% More Storage! It took me about 45 minutes from disassembly of the foot pump to a working vacuum. I noticed that there were a couple of slivers of metal on opposite sides of the end of the hose barb, which had just been bent inward to make the retaining parts. (3) Turn them around. Any advice for how to use a found pump that does have a gauge? This took about a minute of drilling in several goes spread out over a few minutes, drilling from either end while holding the fitting firmly with a wrench. Now use a wrench to unscrew the hose fitting from the base of the pump. I've tried this already I don't know if there is something wrong but the air sucked is very little. Have paper towels or something handy. on Step 1, Instead of the valve from McMaster-Carr or the fish store, you can get a vacuum check valve at the same auto parts store where you get your pump. If you go that route, you'll need to use smaller-diameter hose to connect it; let me know how it works out for you. on Introduction. (4) Put them back on the shaft. It does make rapidly pumping larger volumes of air at lower vacuum levels slightly easier. So, I just used my pump as a portable source of air for my air gun, 9 years ago Screw the hose fitting back onto the pump, and tighten it hand-tight with a wrench. If you drill too fast, or for too long, you'll just heat things up and dull the bit faster. 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(I have no connection to Auto Zone or Slime, and no reason to think that other brands aren't just as good, but if you use exactly the same pump, you should have zero difficulty following the directions. I was able to draft a vacuum pump quite simply and with the bagging equipment found at Aerospace Composites, I put together a pretty good system for some fiberglass layups that I'm working on for my motorcycle project.Here's a fuel tank prototype that I've been working on. (You might be able to get by with a file and a pair of pliers, or even just some needle-nosed pliers. Otherwise, look at the pictures in this instructable, and try to find a very similar pump. To get the ball out, you need to make the hole as big as the ball all the way to the end of the barb.
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