My favorite size pump is the 1/2-2HP range. New ones are several hundred dollars but they can be found on Ebay and surplus sites for less. 0000054354 00000 n For high temperature oven or autoclave use you will pay more money but its worth getting the right kind of hoses. 0000029730 00000 n ), and wait for it to arrive at your door for free! We also stock a comprehensive of parts for Robinair branded Vacuum pumps. Both Gast pumps and the Becker from the video and charts below would be ideal for this. 1 It is not healthy, and it is not good for all your clean oil-free work surfaces and materials. If you disagree with anything here, please get in touch. 0000055878 00000 n You should contact an expert to inspect the pump thoroughly because if this problem persists, it can damage the unit altogether. For bedding core or consolidating a laminate without bleeding much resin you really need a pump that will pull a low vacuum. You should ideally not breathe this. OEM Mechanical Shaft Seal with Screws, 0 Major maintenance kit (excl. Better to buy three used ones for $1500 total and have two that work than to spend $2500+ on one new one and not have a backup. However, if you continue seeing the mist after the chamber has been evacuated, it may be a sign that there is a leak somewhere in the system. Getting a relative gauge up to 29.9 inHg or an absolute gauge down near 0 (millibar, torr, kPa) is very possible with a good bag, good plumbing and a well maintained pump. 0000050871 00000 n 0000050802 00000 n This article discusses the options and my opinions on what the best choices are for different types of composites work. In other words, as a volume of air enters the vacuum pump, more oil mist is created. Youll want to keep an eye on your oil and change it regularly. It isnt necessary or really all that helpful and pumps that have this feature are often too high strung for composites work and will fail sooner than a more standard duty pump. VEVOR Evacuation/Vacuum Pump HVAC Refrigerant Evacuation Pumps. We stock a range of parts for our own brands of vacuum pump: Vpump and Zensen. Technicians think that it is not uncommon for oil-filled pumps to emit a mist when air is moving through the pump. I have used larger Busch, Becker, Leybold and Rietschle pumps and they were all excellent. Do your research, shop around talk to people and ask questions. 0000098952 00000 n There are several common types of vacuum pumps that make sense for composites applications. Capacity (CFM or M^3/HR) in blue is proportional to pump power 0.16kW for the tiny Edwards and 0.90kW for the big Busch. The parts are not large, but you will be running several infusions in a rolling schedule and will be drawing down bags and shooting parts once every hour or two with a resin dispensing machine. It will tolerate being moved around and can run on 110v (or whatever your wall-outlet power is) and a 1.5hp pump will pull 20+ inHg at 15 CFM or so. Enter your phone number and we'll send you a download link. Vacuum pumps are pretty simple and the technology hasnt evolved much in several decades at least at the low end of the vacuum range where composites processing hangs out. a series Buying new is a good option if you are in a commercial situation where the vacuum pump plays a critical part in the commercial success of your work. With two pumps, each gets to do the job it does best and you dont have to worry about the pressure under an active infusion dropping because somebody is pulling down a bag elsewhere in the factory. Somebody also gave me a Gast piston pump that I re-gifted to a friend after tiring of the noise super noisy! They dont like having lots of air flowing through so it is best to only use an oil-lubricated rotary vane pump for very high vacuum. 0000029160 00000 n 619282A 22 CFM 0000002078 00000 n Dry (oil-less) rotary vane pumps are a great option for higher volume (CFM) and medium vacuum level say up to 25 inHg. 1 When the exhaust mist separator becomes saturated it needs to be replaced. See the 110v Becker dry rotary pump in the video and charts below it is perfect for this type of work. There is nothing to worry when you notice this kind of vapor because the pump emits it while pumping on a specific chamber from the atmosphere. Bigger pumps are available used too often at even steeper discounts because they are huge and need three-phase power. The types of pumps you need for composites are different from what is required in labs and industrial high vacuum service. If you need a 7hp vacuum pump for composites work, you have something going on and you know better than I do what you want. Major maintenance kit (excl. 1401E Oil-Lubricated Rotary Vane pumps if you can get one, this is the best option for high vacuum. For run-of-the-mill pumps, a standard vacuum pump oil is probably fine. This then fits Gas Ballast valve Vpump Gas Ballast valve Vpump, SEALAVAC Hose Nipple/Barb - Female 1/4 Flare", Oil Mist Eliminator, Exhaust Filter, 3/4 NPT Male fitting, Plastic Blanking Cap with seal - x 3 mixed sizes (2x1/4 Flare, 1x3/8 Flare), Discharge fitting with vacuum gauge 3/8 npt, Discharge fitting with solenoid valve, 3/8 inch, Discharge fitting with ball valve, 1/2 inch NPT, Vpump Hose Barb fitting, 1/2" NPT thread, 10mm Barb, Hose Barb fitting, 1/4 inch NPT thread, 10mm barb, Hose Tail, Wood & Resin Pen Blanks - Steve Johnson, The Wood Changer, Turned Resin Pens - Steve Johnson, The Wood Changer. This introduces a little bit of airflow that allows the pump to vent off water vapor or other contaminants coming out of the oil. 0000017750 00000 n Get something common and high quality and then keep an eye out for a used one of the same model. They spew oil all over if you run them open, and they get very hot. Here are a few use cases and the types of pumps that would be well suited to the jobs: 1.) Updated 6/17/20: video integration, example pumps and pics, Updated 1/13/21: wet layup and infusion sections links and better heading layouts, Updated 5/6/21: smaller graphics, PNG for sketches, lower quality jpegs, no embedded youtube just link with picture. This is a theoretical capacity. The more the oil passes through this part, the more chances of the smoke emitting when the pump is operating in full throttle. The atmosphere outside presses down on the outside of the bag with its full weight, which is approximately 14.7 lbs per square inch or about 10,300 kg per square meter (101 kPa). 0000028534 00000 n You are responsible for your own judgement and outcomes. To buy this 12 cfm vacuum pump, all you have to do is add it to your cart, place your order, choose a convenient payment method, choose a convenient delivery method (we ship worldwide! You may (you definitely will) even want a dedicated cook pump for oven (or autoclave) operation, and so you have a backup. 0000029619 00000 n 1401D 619560A The Becker and Busch RC0021 were more. Again, air flowing through this type of pump is not ideal. Here are short descriptions of each: Diaphragm pumps are a lot like piston pumps except that they are often quieter because instead of a piston they use a flexible diaphragm! 0000014010 00000 n Often vacuum systems are set up with a high and a low vacuum manifold. 4 Eventually, the pump will run out of oil; running the pump without oil will cause damage to the internals. Module Gasket Is your vacuum pump smoking and you are worried that it is malfunctioning? Dry pumps also dont mind having the vacuum level regulated down and will gladly run all day with air flowing through. 616385 0000100176 00000 n This article contains information that reflects my opinions I make no promises about its usefulness! Some high-vacuum pumps run hot to boil off moisture and need special oil. 0000001506 00000 n Noise can be a problem these are louder than oil lubricated pumps and if you are working in the same room with one all day youll notice. It may contain mistakes (please let me know if you find some!) Also before you bid, try to call up the brands service provider in your area and see about parts availability. Vacuum is just volume without any molecules in it. 320106 oil) TRIVAC D 65 B Charts from the video are shown below in the Example Pumps section. Infusion is really like two different processes stuck end-to-end when it comes to vacuum. Oil-lubricated rotary vane pumps can have a gas ballast which is usually found on high vacuum pumps like the little Edwards in the video and the photos. Keep in mind theyre only meant to run for a few minutes at a time. Tags: 412962 For this type of work you need good vacuum and really good durability because youre going to run it hard and put it away wet often literally! Here you dont need lots of vacuum pressure, maybe only 10-15 inHg (500 mbar, 380 Torr) but the bag seal may not be perfect and a lot of it is overhead so youll want some capacity, maybe 10CFM or more. Swap legs if you have it wrong. Absolute gauges are more repeatable because the atmospheric pressure changes with the weather. Updated 12/18/19: section on power hookup and oil removal for shipping, misc grammatical, spelling edits. Piston pumps are just like piston air compressors but backwards. EC! For small shops or hobbyists looking for a good quality pump for either high (oil) or lower (oil-less) vacuum, a rotary vane pump is a good choice. PART NUMBER It is perfect for little bags and repairs and dragging around on the end of an extension cord. The second goal is to bleed off excess resin from a wet-out laminate. Vacuum bags are an almost magical tool you can press really hard on things in ways no other clamping mechanism can match. None of the other options are going to cut it for pulling high levels of vacuum. This 12 cfm vacuum pump is one of our favorites and a great option for anyone who wants a reliable vehicle good. In practice, a bag will only get better as you remove leaks. The vacuum level will be high and the pump will be quiet and reliable. A pump with an exhaust oil filter like the Gardner Denver and the Busch will capture that oil and recirculate it rather than let it blow out. 0000028210 00000 n You have built some small cored panels, assembled them into a box and are laminating carbon fiber biaxial tapes at the joints to tie the panel skins together. The brass manifold with the three flare fittings needs to be removed from the vacuum pump. And another below showing the maximum vacuum for each pump in several units with some context. Exhaust Valve, Bypass Ill get back to gauges later on. Explore Composites! This is a perfect place for a small diaphragm, piston or dry rotary vane pump. So practically it isnt much of an issue but it is important to understand. Wire-reinforced silicone radiator hose works too. articles, videos, photos: Copyright 2022 Chris Rogers. You could do with less, but if there are some leaks you could end up with less pressure than you need. A \hr-IE_ckr1}:Yagm?a"V"i4PnW. 5 Gallon Vacuum Chamber Stainless Steel Degassing Silicone Kit 5CFM Vacuum Pump, Gaga Ball Pit Inflatable Xl 20' Gagaball Court W Electric Air Pump - Inflates In, VEVOR Pool Pump Swimming Pool Pump 72V DC/900W Solar Water Pump 62 FT/92 GPM, Vevor Hand Water Pump W/stand Well Pitcher Cast Iron Press Suction Garden Green, Hydraulic Log Splitter Kit,16 Gpm 2 Stage Pump &25 Gpm Auto Control Detent Valve, VEVOR Deep Well Pump 400ft 2HP Stainless Steel Underwater Bore Submersible Pump 220V Deep Well Water Pump with Control Box, 1/2" Air Driven Double Diaphragm Pump Qby4-15 Poly/sant Valve Balls Included, VEVOR Deep Well Submersible Pump 1/2 HP 150ft Deep Well Pump 25GPM Stainless Steel Deep Well Pump For Industrial and Home Use (1/2 HP 110V), VEVOR Pool Pump Swimming Pool Pump 48V DC/500W Solar Water Pump 49 FT/75 GPM, Vevor Inflatable Dock Platform Inflatable Dock 7'x7'x6" Floating Dock W/ Pump, Shallow Well Jet Pump W/pressure Switch 1hp 17.6gpm, Hmax 216.5 Ft, 115v, Hydraulic Log Splitter Pump Hydraulic Motor 16 Gpm,2 Stage Hi Lo Gear Pump, Vevor Antique Hand Water Pump Pitcher Pump Cast Iron For Yard Ponds Garden Black, Inflatable Dock Platform Inflatable Floating Dock 10x6.5 ft w/ Electric Air Pump, Hydraulic Pump Hydraulic Tractor Pto Pump 16.6 Gpm Gp-pto-a-7-6-s @ 540 Rpm, 3 Quart Double Acting Hydraulic Pump Dump Trailer 12v Unit Pack Control Kit, Inflatable Dock Platform, Pvc Floating Fishing Dock 6x5 Ft W/ Electric Air Pump, Vevor Pool Pump Motor Electric Motor 3/4 Hp 115/230v Swimming Pool Motor 3495rpm, Vevor 30mpa High Pressure Air Pump Scuba Pcp Compressor Auto-stop 12v 110v 220v, Pto Pump Hydraulic Pump Hydraulic Tractor 21.2 Gpm 540 Rpm, VEVOR 1.6HP Sewage Pump 220V Stainless Steel Submersible Sump Water 7100GPH Submersible Water Pump, Vevor Transmission Fluid Extractor Dispenser Atf Refill Pump Kit 10l 14 Adapters, Vevor Pcp Air Compressor 4500psi Pcp Airscuba Air Pump Portable Auto-stop, Vevor Grease Pump Air Operated Grease Pump 10 Gallon 40l Pneumatic Grease Bucket, Vevor Pool Pump Motor Electric Motor 1.5 Hp 115/230v Swimming Pool Motor 3463rpm, Vevor Pool Pump Motor Electric Motor 1 Hp 115/230v Swimming Pool Motor 3450rpm, Vevor Moonshine Still Water Distiller Brewing Kit 13.2gal W/ Water Pump, Vevor Linear Air Pump Septic Aerator Pump 25w W/8 Outlets Diffuser For Fish Pond, Vevor Turbine Shaft Pump Stator Seal Ring, 3pcs 4l60e Transmission Seal Tool Kit, Hydraulic Pump Auto Lift Power Unit Pack 220v 60hz 2950 Psi 4 Gal Tank 3 Hp, Electric Warmer Pump Dispenser Nacho Cheese Sauce Melter 1 Pump W/heated Spout, Hydraulic Power Unit Double Acting W/ Pressure Gauge Hydraulic Pump 12 Quart, Vevor 30mpa 4500psi High Pressure Air Compressor Pcp Airscuba Air Pump Auto, Hydraulic Power Unit Hydraulic Pump Double Acting 20 Quart Dump Trailer Pack, Hydraulic Tractor Pto Pump 7.4 Gpm 540 Rpm Hydraulic Pump, 120w 2800rpm Gem Faceting Machine With Pump Jewelry Rock Jade Polishing. 0000100213 00000 n Most pumps can perform to their rating only at free air or no-load condition. There is no oil to spill or get blown out all over the room though if theres a big leak in your bag. View cart for details. 0000059743 00000 n Buying a used pump can be a great choice, and knowing how to maintain it yourself is always nice. Id rather have two of these than one 5hp pump. If you see any mistakes or disagree with anything here I would love to have a chance to learn from you please let me know! Now you switch your vacuum requirements to a much lower vacuum level. This is not just for me to share what I know, but to learn from others. When an oil-lubricated pump is run open with lots of air flowing through it, the oil can (and will) come out the exhaust in a fine mist. You are setting up a work-cell for a set of production infused parts with reusable silicone vacuum bags. This article and video include six small example pumps from my collection. These are all of common types that can be good for use in a variety of composites processes. You can give it a quick bump to make sure its going the right way before the electrician leaves, but nothing more. your oil will get all frothy like a milkshake and you will need to change it more often. Once you have that vacuum pump, you are going to need a bunch of other stuff too. Check the tag and look up the datasheet if you need specific performance like very high vacuum for debulking infusion stacks or high vapor handling for cooking MDF molds in an autoclave. I will gladly insert additional information and differing opinions so readers are more aware of the diversity of right answers! I know of one that has been degassing resin daily for 5+ years. This might be 25inHg / 0.85bar or so. If you remove only some of the air inside a vacuum bag, the atmospheric pressure only pushes with a fraction of the potential 14.7 psi / 101kPa. One of the primary reasons why the mist may appear while the pump is switched on is due to a noisy pump. You can suck down bags with one but dont hook it up to a regulator that bleeds air into the pump to reduce pressure see oil issues below. QUANTITY Mechanical Shaft Seal with Screws, 0 Edwards E2M12 E2M18 E2M28 E2M30 Mounting Foot 26501031. The bag will be about 25 square feet (2.5sq m.) and you need the do the job outside with a long extension cord. Some designs of vacuum pumps contain an internal oil mist separator inside the exhaust cavity. They also pull pretty good vacuum. If you are a professional, here you will want the best high vacuum pump you can get and a digital vacuum gauge to monitor it. You pay extra for the convenience, but the concept and execution is excellent. When I had a small factory, we had Busch, Becker, Airtech and Leybold pumps that were slightly larger and they were very reliable and easy to deal with. Theyre like hammers different types and sizes for different jobs! This part is made of a fibrous material that gets wet when oil passes through it. oil) TRIVAC D 16 B, Major maintenance kit (excl. Its not just usweve surveyed and received feedback from over 1,000 customers around the world who are all happy with their purchases. If youre looking for the best car-related products on the market, look no further. Copyright 1995-2022 eBay Inc. All Rights Reserved. 619560A If youre serious about commercial level infusion my advice is to get two pumps high and low. 0000032110 00000 n What types of composite processes are you going to be doing? Green is positive pressure (car tire) and everything else is vacuum. So now you want a low vacuum pump maybe 20inHg or even lower. There are lots of other better and worse options. Weve tested over 10,000 automotive products over the past few years so that we can show you the very best of them. We dont feel it because we are pressurized from the inside to compensate and our bodies are designed to handle it. And heres another reason to trust us: all our products come with a warranty and service anywhere in the world. For more about pre-pregs check out my article on Laminating with Pre-pregs. Cheap hoses flatten and lose flow when you heat them up. PART NUMBER Gauge pressure is relative to atmospheric pressure, where absolute pressure is absolute. 0000031057 00000 n You can buy very fancy ones with multiple stages and high vacuum capacity but it probably makes more sense to buy a rotary vane pump if you are going over 1/2 HP. You want to use thread sealant on each assembly and buy decent couplers. 0000006386 00000 n Many manufacturers recommend installing an oil mist eliminator on the exhaust to coalesce the oil mist. Youll have to replace the oil with new oil before you run it. Are you concerned about possible damages? The high vacuum is used before and during infusion and can be a smaller pump, but will most likely be an oil-lubricated rotary vane pump capable of pulling high vacuum (28-29 inHg.) 0000101400 00000 n It covers many of the same things and shows six actual pumps. DESCRIPTION Torr makes some crazy rugged metal sheathed hoses but I havent used them. Sign up to receive exclusive offers in your inbox. 0000029821 00000 n If you can afford it, get a new or lightly used one. Hose Barb fitting, 10mm barb, 1/2 inch NPT thread Description: Vpump Hose Barb fitting, 1/2 inch NPT thread, 10mm hose barb The brass manifold with the three flare fittings needs to be removed from the vacuum pump. QUANTITY I make no promises about its usefulness! Bad news! Youll run this pump right up until you are about to clamp off the resin feed lines after the part is full. Were confident that youll be satisfied with your purchase and will recommend us to all your friends. You dont need much of a pump here maybe 10-20 inHg and a few CFM. This site contains information that reflects the opinions of individual authors mostly me, Chris. Worst case if you have a leak in a bag or a fitting come disconnected, your pump can exhaust oil mist for hours filling up the air with a haze of micro oil droplets that contaminate everything with oil. Generally you get what you pay for! And for really big parts, you may be fine just keeping the vacuum high throughout the cure but if youre doing that you should email me and tell me your opinion on this no really! Over time try to round up a small collection if you do routine composites work. Some were great. Ok, maybe they are an option worth considering if you need high vacuum on a tight budget. You can rig up regulators that dont flow air through the pump, but standard ones will just bleed air into the line to reach the set level which will be bad news for your fancy millibar-chasing vacuum-pulling oiled-rotary-vane suckin machine. 0000022894 00000 n This doesnt take much pressure! 0000028082 00000 n