Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Air Compressors & Vacuums | Gesswein

The Quiet Air Compressor makes less noise than a refrigerator. Gesswein also offers Busch, Gast and Thomas Vaccum Pumps for your wax injector or casting machine. Great air compressors, vacuum pumps, and vacuum pump oil.

What is a Refrigeration Vacuum Pump? (with pictures)

Jun 18, 2020 · A refrigeration vacuum pump is a device used to purge air conditioning and refrigeration (AC/R) systems of contaminants such as moisture and air. This purging action is achieved by inducing a deep vacuum in the system by continuously drawing small amounts of gas out over a protracted period.

DIY Vacuum Pump-27 Easy To Do Projects You Can Build On A .

16- Fridge Compressor Vacuum Pump. An old non-working fridge still contains valuable components that can be used for many DIY projects, including building a vacuum pump. The compressor can be recycled into the main component of a DIY vacuum chamber so you can create a DIY tool that will assist you in many workshop projects.

Difference Between Air Compressors & Vacuum Pumps | RG Group

Vacuum Pump VS Compressor. Although vacuum pumps and air compressors may seem similar in principle, there are a few key details that differentiate them from one another. Aside from the main structure, here are the areas where they're different: Operation of a Compressor. A compressor usually only transports gas because of the way it works.

How to Replace an AC Compressor | Advance Auto Parts

Open the valve at the low side gauge while the pump is running—you will hear a change in the pump motor's tone as it starts to pull vacuum. Let the pump run for about 30 minutes and close the valve; it should read about 28 to 29 inches of mercury. Anything less than that can .

Making a Fridge Compressor Into a Vacuum Pump : 5 Steps .

Vacuum pumps are usually two stage pumps, which means they have two pistons connected in series to obtain a high vacuum. Refrigerator compressors normally only have one piston. Another factor in the amount of vacuum a compressor can obtain is how well the piston seals, and it's compression ratio.

Combination Vacuum Pumps and Air Compressors - Air .

Diaphragm compressor and vacuum pump combo units are designed for continuous duty. Piston air compressor and vacuum pump create a higher, consistent output pressure that makes the pump less susceptible to pulsation. Rotary vane compressor and vacuum pump combination are for general continuous duty vacuum applications.

How to correctly evacuate a Refrigeration or Air .

Jul 22, 2016 · This is why it is best to have a variety of vacuum pumps as you don't need a 230 litre per min pump on a domestic fridge. The triple vacuum method is similar to the above but can help you achieve a much lower vacuum. You will need to evacuate system to 500 microns, then break vacuum with dry nitrogen.

How to Make an Air Compressor from an Old Refrigerator: 9 .

May 03, 2018 · Described here is a quiet air compressor with plenty of power to inflate tires, blow dry parts and even spray automotive paint. All that's needed is a 110volt refrigerator or freezer (bigger is better) with a salvageable compressor and an air tank, with an air gauge, safety release valve, few feet of 3/8 I.D. air hose and some fittings

Vacuum Pump Alone Won't Cure Blockages in Refrigerator .

This is true no matter how deep the vacuum or for how long the vacuum pump is run. Moisture issues - Back in the day, when refrigeration systems used good old ozone-gulping refrigerant R12 and mineral oil in the compressor, moisture could be removed from the entire system, including the oil, simply by hooking up a vacuum pump and taking the .

Vacuum on the Cheap - Refrigeration Compressors

Vacuum on the Cheap: the Refrigeration Compressor Compiled from material originally presented in Volume 1 (1992) of the Bell Jar with various updates and additions. The Scientific American Amateur Scientist column, when under the leadership of C.L. Stong, devoted a considerable amount of attention (relatively speaking) to projects involving vacuum.

ICE LOONG

Refrigeration Accessories Refrigeration Tools Vacuum Pump Refrigerant Gas Air Conditioner Compressor Insulation Pipe Refrigerator Part Accessories Refrigeration Access Valve Contact Us Tel: 86-570-3832576 Mobile Phone: +8618057010116 Address: N0.893 CENTURY AVENUE, QUZHOU, ZHEJIANG, CHINA, Quzhou, Zhejiang

How to Make A Vacuum Pump with An Air Compressor .

Jun 23, 2019 · We can use the function (suction mechanism) to convert an air compressor to a vacuum pump. So, you don't need to buy a vacuum pump. Because you can convert the air compressor into a vacuum pump. Thus, you can save your hard-earned money. It is better to build a vacuum pump with an air compressor in terms of money.

So you say you need a vacuum pump to evacuate your AC .

Sep 14, 2007 · With a vacuum pump and a suitable tank). Find an old refrigerator with a good compressor and remove it. Put the correct fitting on the suction side (larger of the two hoses) and leave the discharge side open. You now have a vacuum pump, usually for free. Regards, Bob

Difference of vacuum pump oil, compressor oil and .

Vacuum pump (mainly mechanical vacuum pump), compressor (air compressor, various gas compressors) and refrigerator have special requirements for lubricating oil. Vacuum pump oil is used in mechanical vacuum pump of vacuum system. Compressor oil is mainly used in the lubrication of cylinder and piston friction parts of gas compressor, exhauster and piston pump, as well as inlet and .

How to Convert a refridgerator compressor into a vacuum pump

Looking to make a vacuum pump or air compressor? Why not make one in the comfort of your own home? In this video, learn how to convert a domestic refrigerator compressor into a vacuum pump or air compressor.

Air Compressors & Vacuums | Gesswein

The Quiet Air Compressor makes less noise than a refrigerator. Gesswein also offers Busch, Gast and Thomas Vaccum Pumps for your wax injector or casting machine. Great air compressors, vacuum pumps, and vacuum pump oil.

Making a Fridge Compressor Into a Vacuum Pump | Vacuum .

Jun 16, 2019 - Making a Fridge Compressor Into a Vacuum Pump: I have wanted a vacuum pump for some time, but I refuse to pay the price for a new one that looks of sufficient strength and duty that I imagine I need. I have read in different forums about the making of a vacuum pump from a fridge compressor, b.

Converting Air Compressor to Vacuum Pump

Sep 29, 2011 · You could use a compressor pump to pull a vacuum, but will not acheive the 27/28 hg level you desire. Most pumps for vacuum have the pumping unit enclosed in an oiled filled case to help with sealing and holding a vacuum. A rotary vane type would give better flow.

Sciencemadness Discussion Board - Vacuum from a fridge .

Feb 04, 2008 · A fridge compressor is a single stage pump, there is no place to ballast them but at or before the inlet. I have owned four Edwards & Alcatel vacuum pumps, taken them to bits, put them back together and had them running better than before. I posted a photo of the gloves I use in response to someone mentioning gloves. Reported.

How much vacuum should a fridge compressor pull? - RC Groups

Jul 09, 2009 · Hi folks, I've finally (Yay!) got hold of a vacuum gauge for my fridge compressor powered bagging system. However when I connect the gauge directly to the pump without anything else connected, the most the pump pulls is 11.5 to 12"Hg according to the gauge.

Refrigerator compressor for vacuum pump | The .

Sep 10, 2012 · I have a refrigerator compressor that I plan on using as a vacuum pump as soon as I get my vacuum chanber from Curtis. I am getting pretty close to 30 vac. on my gauge. I also have a 2nd compressor as a backup. They both want to switch off as they choose. On my 2nd pump, it is from a small apartment refrig.

Longevity of refrigeration compressor as a vacuum pump .

Apr 06, 2017 · I've got a compressor out of a small domestic refrigerator that I've re-purposed as a vacuum pump for my manual pick and place pen. See pics attached. I ran it for a while until most of the oil spluttered out the exhaust line. I've run it for a few hours and it still runs whisper quiet and pulls ~27"Hg vacuum.

How much vacuum should a fridge compressor pull? - RC Groups

Jul 09, 2009 · Hi folks, I've finally (Yay!) got hold of a vacuum gauge for my fridge compressor powered bagging system. However when I connect the gauge directly to the pump without anything else connected, the most the pump pulls is 11.5 to 12"Hg according to the gauge.

How to Use a Vacuum Pump: 9 Steps (with Pictures) - wikiHow

Jun 20, 2019 · Before you use your vacuum pump, make sure it is full of clean vacuum pump oil. Unscrew the oil fill cap, typically located on the top of the pump, and look on the interior edge of the opening for the fill line. Fill the opening with oil until it reaches that line. Then, replace the oil fill cap. Be sure to only use oil meant for vacuum pumps.

Budget Vacuum Pump

The little black object on the left side and wired to the pump is the pump motor run capacitor. The suction line runs to a ball valve -- you can see the handle above and behind the vacuum gauge -- then to the vacuum gauge and finally to a hose that connects to whatever -- usually the budget vacuum chamber I built.. The ball valve allows the pump to be isolated from the vacuum chamber, which .

Vacuum Pump - RC Groups

May 31, 2020 · usually youcan just pop the case open and swap thehoses around on the pump head. at first i thought they might not last in the vacuum pump role but the one i've been using refuses to die. they are a bit noisier than the fridge compressor butno oil to worry about and simpler to convert if you're not well versed in repurposing junk.

Micronisers - Vacuum Pump Manufactureres & Suppliers in .

QF fluidized bed jet mill is widely used for the ultrafine pulverizing of talc, barite, kaolin, quartz, graphite, ceramic, farm chemicals, western medicine, traditional Chinese medicine, non-metallic minerals, positive and negative materials of the battery, fire-retardant materials, etc.

Combination Vacuum Pumps and Air Compressors - Air .

Diaphragm compressor and vacuum pump combo units are designed for continuous duty. Piston air compressor and vacuum pump create a higher, consistent output pressure that makes the pump less susceptible to pulsation. Rotary vane compressor and vacuum pump combination are for general continuous duty vacuum applications.

Longevity of refrigeration compressor as a vacuum pump .

Apr 06, 2017 · I've got a compressor out of a small domestic refrigerator that I've re-purposed as a vacuum pump for my manual pick and place pen. See pics attached. I ran it for a while until most of the oil spluttered out the exhaust line. I've run it for a few hours and it still runs whisper quiet and pulls ~27"Hg vacuum.