ZENY 3,5CFM Single-Stage 5 Pa Rotary Vane Economy Vacuum Pump 3 CFM 1/4HP Air Conditioner Refrigerant HVAC Air Tool R410a 1/4" Flare Inlet Port, Blue
- Inlet Port: 1/4" Flare, Warm note: 1)Pressure Scale:0~400psi, 0~140psi 2)Length of hose:1.2m Red:1/4''-1/4'' Yellow:1/4''-1/4'' Blue:1/4''-1/4'' Please make sure your manifold gauge is in accordance with this size. Any question in using, please contact seller first. *** A self-paying vacuum pump Adapter needed if inflet not suitable.
- High Efficiency and Low Noise, Heavy-duty Aluminum Alloy Casing, Oil Drain Plug Positioned at Bottom of Oil Reservoir,Internal High Volume Cooling Fan for Extended U
- Exhaust Port with Exhaust Cap, Direct Drive Motor Allowing Easy Starting Which is Maintenance Free
- Oil Sight Glass For Monitoring Oil Levels, ON/OFF Switch
- Non Slip Cushion Handle, Comes With a Bottle of Vacuum Oil
Aadi Ch
great hvac vacuumn pump.
I use this to pull vacuum on hvac linesets and so far it has work flawlessly. Maintain the oil and maintenance on this unit. I pull and hold -29 hgm on a newly brazed or repaired line set and vacuum holds. Great product and even greater price.
Frankie Keller
This is a Great Vacuum Pump for Winemakers
0:37 0:00 This video is not intended for all audiences. What date were you born? JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember12345678910111213141516171819202122232425262728293031201920182017201620152014201320122011201020092008200720062005200420032002200120001999199819971996199519941993199219911990198919881987198619851984198319821981198019791978197719761975197419731972197119701969196819671966196519641963196219611960195919581957195619551954195319521951195019491948194719461945194419431942194119401939193819371936193519341933193219311930192919281927192619251924192319221921192019191918191719161915191419131912191119101909190819071906190519041903190219011900 Submit Adobe Flash Player is required to watch this video. Install Flash Player Every winemaker should get this vacuum pump. If you aren't familiar with Wine Degassing, you can read more online, but in a nutshell, "degassing" wine removes the CO2 that is created when sugar converts to alcohol. When you leave CO2 in wine, it tastes bubbly, and leaves a foul flavor. I've tried several other products to degas my wine before looking at an actual vacuum pump: * A handheld vacuum, often called Wine Pump or Vacu Vin. This is a six-inch tall pump with a rubber stopper designed for removing the air from a single bottle of wine. This works, but only pulls up small bubbles and takes a lot of effort to get a very small result. * A metal rod wine whip. This is a straight metal rod with two plastic flaps at the end that you attach to a power drill and stick into your wine bucket or carboy to spin the wine around and stir up the bubbles. This was essentially, for me, an electric version of the Vacu Vin. Not much of an improvement, and took a lot of time. * A Wine Whip degasser. This is a C-shaped plastic rod (much like the metal rod) that you also attach to a power drill and stick into your wine bucket or carboy to spin the wine around and stir up the bubbles. It works pretty well, better than the metal equivalent in my case, but takes a lot of time and only gets slightly larger bubbles than the Vacu Vin. * A Vacuum Sealer. This is a completely different product. These are used to vacuum seal food. There are a lot of examples online using a Vacuum Sealer that use the accessory port (normally used for things like sealing Mason Jars) to degas the wine. I haven't tried many of these, but my Vacuum Sealer had a safety mechanism that shut it off when it hit a certain amount of pressure, so I had to restart it over and over. In the end, it never got more than small bubbles. So I started looking for a proper Vacuum Pump; no shortcuts, just a real electric vacuum pump. If you've looked at these much, you probably know that they are pricy. Most of the local big-box stores didn't even carry them, and even the few that did started over $100. At the time that I purchased this unit, it was $48 plus about $10 shipping. I researched the different types of pumps: single stage, dual stage, etc. For Winemaking, a single stage looked like it was going to do the trick. The main advantage that I found in this research was that a dual stage would eventually be quieter as it was running. However, this vacuum pump isn't loud at all. I measured the decibels that it put out after warming up. With the decibel meter 6 inches away from the pump, it produced 64db. This is pretty low, in my opinion. This doesn't sound like an air compressor; it sounds more like a washing machine, dryer, but probably closer to a dehumidifier. This is not loud at all. The vacuum power on this is more than enough for a 23 liter (or 5-6 gallon) glass carboy. You are supposed to put another drip container in between your carboy and the vacuum pump when you start. I had read about how important it was to make sure that you don't get any wine or fluid into a vacuum pump, but having tried the above mentioned methods, I was expecting a slow start when I plugged it in, so I hurriedly skipped adding a drip container, but was ready to pull the hose off in case it started to fill the hose with wine. I am so glad I was ready. When I first turned it on, it degassed so fast! Bubbles shot to the top and wine was in the tube faster than I expected, and I was able to rip the hose away from the pump in time! But be careful, this thing can degas quickly. After that, I connected a drip container and turned it back on and it is pretty amazing how well this works. I was using spare hose, not air hose that is reinforced, so the hose and tubing collapsed on itself and pinched, slowing down the airflow. Tomorrow I'll be heading out to get proper air hose, a relief valve, and probably even a regulator so I can monitor the pressure. This thing works very well and is a great deal!
Jake Barnes
Nice Vacuum pump
Nice little vacuum pump, and it will work well for the small vacuum chamber I made to help change oil on small engines etc... If however you are thinking of using this commercially I would not, this is a home game type unit made for light duty and occasional use and as a hobbyist or occasional user like me it should last a long time with basic care like changing the oil once in a while.
Tonya Allen
OK so far.
It is a toy single stage pump, but for the price it actually seems to work reasonably well. It is rated on the compliance plate at 5 Pa ultimate vacuum (or about 37.5 micron). I get about 120 micron out of it with nothing but the thermocouple gauge. Like most pumps it will bubble and spit some oil out when pumping a gassy load, a small trap would prevent this, I'll likely make one for it. I suspect the oil it ships with is not very good vacuum oil. It has a distinct odour which is generally a bad sign, if you can smell it the vapour pressure of something in it is non-trivial. I will replace the oil with a high quality vacuum oil and see if it can pump a bit lower. Anything around 100 micron is pretty good for a single stage pump anyway, for $60 bucks I am not disappointed. No sign of ceasing or an exploding motor-start capacitor as others have reported yet, but I have only run it for an hour or so.
Bar Milano
SWEET PUMP!!!
GREAT!!! I use for many things. It goes to -28 Hg every time. I also use it to de-gas red/white wine, when i use it for that, the pump stays on for a few hours at a time and never has an issue, it blows a little oil smoke, but that's a very common thing with vac pumps, don't be alarmed. Great deal too for $55 bucks!!! I also use it for BHO. Works like a beautiful THC princess.
Brittany Easley
cant go wrong...
Works excellent and have already made my money back on it by 3 times what I paid for it just in recharging peoples systems I really bought it just to do my own vehicles but once people found out I had one they started flocking in
LeeAnn Shane Clutter
Good Vacuum Pump
I used this to change the condenser on daughters LR2 that had failed. It was able to draw it down to the full -30 in hg and keep pulling for the required 30 minutes with no problems. Fittings on the pump worked good with the gauge fittings. Instructions for the initial setup are a little dangerous. Instructions say after filling with oil to put the exhaust plug on it and remove the inlet cover and run for a few minutes to circulate the oil. This made the exhaust plug shoot out the top of the machine. Luckily I wasn't hovering over it when it happened. I recommend removing the exhaust plug ANY time it is turned on.
Jeta Jeta
Great for the price!
So I used a different premium oil (black gold) and was almost 30 in Hg for vacuuming my car Ac! Not too bad for single stage pump. This pump has plugs to keep oil from draining out which is great for transport. Its light and can run for 30 min without overheating which you will need to do if you use this for evacuating an ac unit. Overall great for my needs.
Carmen Helene Malou Hansson
Worked great for my auto A/C repair
Worked great for my first time auto A/C repair. Filled it with the supplied oil and it was ready to go after i added the not-included adapter to fit my auto A/C lines. Ran it for 45 minutes holding good vacuum the whole time. It was warm of course after but not so hot it was melting plastic or anything. You will need a 1/4 inch flare female x 1/2 inch Acme male to hook it to your auto A/C if that is what you are using it for. I used a FJC 6014 Vacuum Pump Adapter.
Shahzana Mallick
This thing sucks!!
I'm making a vacuum bag & needed something in an inexpensive - this is it!! Works well / inexpensive / has an on off switch / comes with it's own oil / large window to see what your oil level is - draws all the air out of a 2' X 4' bag in about a minute and a half - have a small leak somewhere because air creeps back in after about 15 minutes so I'm thinkin' that's 'My Bad' … good product