KozyvacuKozyvacu Single-Stage HVAC Vacuum Pump, 3.5CFM - Ideal for AC Repair Tools, Car AC Vacuum Pump, AC Vacuum Pump Kit, and Recovery Machine HVAC - Also Known as Bomba de Vacio A/C (TA350)

The Kozyvacu TA350 Single-Stage Rotary Vane Vacuum Pump has proven to be an exceptional tool for both professional HVAC technicians and DIY enthusiasts. Its robust performance and user-friendly design make it a standout choice in its category.CamelCamelCamel+8YouTube+8Desert Cart+8Performance & Efficiency:With a free air displacement of 3.5 CFM and an ultimate vacuum of 150 microns, this pump delivers powerful and efficient operation. Users have reported that it pulls a full vacuum quickly, making it ideal for tasks like air conditioning servicing and refrigeration maintenance .Amazon+2Galleon+2eBay+2AmazonBuild Quality & Design:Constructed with a die-cast aluminum housing, the TA350 is both lightweight and durable. Its high torque design ensures easy startup and efficient operation. The pump also features an oil viewing window for monitoring oil levels and quality, and an angled oil drain valve for faster, more complete draining .CamelCamelCamel+3Desert Cart+3YouTube+3Walmart.com+1Galleon+1Versatility:Beyond HVAC applications, this pump is versatile enough for automotive AC systems, wine degassing, epoxy resin degassing, and even medical and food processing tasks. Its adaptability makes it a valuable addition to various professional and home workshops.User Feedback:Customers have praised the TA350 for its quiet operation, sturdy build, and excellent value for money. Some have noted that it runs cooler than expected, even during extended use. However, a few users mentioned the emission of a fine oil mist during operation, which is common with rotary vane pumps.Final Thoughts:The Kozyvacu TA350 stands out as a reliable and efficient vacuum pump that caters to a wide range of applications. Its combination of performance, durability, and affordability makes it a top choice for those seeking a dependable vacuum solution.

I had no issues with the pump. It sucked my honda civic system down to-30 very quickly.Ran pump for almost 1 hour straight with no overheating or cutting out. I will say it was 50 degrees outside when I used it.Pump makes some strange sounds when running however it did a great job. After 10 minutes or so the pump was not putting out any mist. The way I understand the manual once mist stops them moisture should be out of the system.The oil that's included was a little more than needed to fill the pump so I have extra if ever needed.Good pump for the occasional users.

I've been using this pump for a few years primarily on vehicle AC systems. It has held up well with regular oil changes. HOWEVER, the best vacuum I can pull is 130 microns with a CPS VG200 connected directly to the pump. While anything under 500 microns is considered acceptable, the rating plate on the pump claims to be able to pull down to 37.5 micron (5pA).It does the job to get well below what is considered acceptable vacuum in the automotive and residential HVAC industry, however it would be nice to have a specification plate that is actually true. I'll ding a star for that, but have nothing else negative to say. Decent little pump for the money.

I bought this vacuum pump to stabilize wood turning blanks and degas wine. The pump arrived before my vacuum pot, so I decided to setup it up for degassing wine. My one and only criticism of the unit is the two fitting for attaching a vacuum line. They are a 1/4" Flare and 1/2" Acme. If you're a refrigeration guy, these are perfect, but if you're a woodworking wino, they can be problematic. I wanted to end up with a 3/8" nipple fitting for a hose. After a couple a trips to hardware stores and purchasing the wrong fittings, I became frustrated and removed the fitting from the pump, took it to the store, handing it to the clerk and told him what I wanted. After much digging around, the clerk came up with a variety of fittings that when combined would accomplish my goal.One thing I noticed when I removed the fitting from the pump, was the thread sealant. Instead of typical semi soft pipe putty, the sealant was hard like glue. When I reinstalled the pump's fitting, I used Teflon tape. I assembled my degassing rig and fired it up. The vacuum gauge read a maximum vacuum of about 25 Hg. Fine for wine but not ideal for stabilizing wood.The next day my vacuum pot arrived. It came with all the fittings and vacuum gauge installed. All that needed to be done was to attach the vacuum line directly to the 1/4" flare fitting on the pump. No adapter needed. I fired up the vacuum pot (after changing the pump oil) and watched as it maxed out at about 27 Hg of vacuum. Acceptable but not great. Out of curiosity, I put a few drops of oil around the pump's fitting were it screws into the pump body. Within a few minutes, the oil had disappeared. Before doing the next batch of wood, I removed the fitting, cleaned the threads with a pick and wire brush, and reinstalled the fitting using 5 minute epoxy as thread sealant. The next time I ran the pump, it pulled a 29+ Hg vacuum that eventually got past 29.5 Hg. At my elevation of 825' above sea level, that's about as good of a vacuum as you can get.I am on my 5th batch of wood and have not changed the oil in the pump. It's still pulling a near perfect vacuum. Speaking of oil, when the pump is running, an oil mist is emitted from the exhaust port. I would avoid breathing it. Rather than wear a filter mask I simply put the pump outside. The good news is, when the pump reaches maximum vacuum (and there are no significant vacuum leaks) the mist diminishes almost completely. I still run the pump outside. In cold weather, I keep the vacuum pot inside and run the power cord and vacuum line under the garage door to the pump outside. The cold air helps keep the pump cool during operation. In 50+ degree temps, the pump gets pretty warm after running for a couple hours or more...not burning hot, but uncomfortably warm (which is normal).Overall, I'm very pleased with this pump, especially at this price.