HVAC Repair Vacuum Pump

Whether you have a large AC system or a split unit, Kozyvacu pump and manifold provides a great solution for your needs.

AUTO AC Refrigerant Changing

Whether you are an auto AC repair professional or want to DIY repair your vehicle’s air conditioning, Kozyvacu vacuum pump and manifold is a good solution for you. Reliable and trustworthy!

Winery Degassing

Kozyvacu vacuum pump is an ideal tool to degas wine. Racking and filtering wine is made easier with our pump.


From a small farm to a large one, Kozyvacu vacuum pump provides a convenient solution for your milking needs.


Biology, medical and research labs all have a need for vacuum pumps. No matter what type of laboratory you have, feel free to ask us how Kozyvacu can meet your requirements.


Kozyvacu® is a registered brand of Kozyard LLC. Kozyvacu.com is an online retail store dedicated to working with our manufacturers to bring top-notch vacuum pump and refrigerant-related tools and accessories to our customers. We sell our products directly on our official web store as well as on Amazon, eBay, Jet and Walmart.

Our customer service can be depended on to work morning, noon, and night to suit our customers’ needs. Whether to answer questions, troubleshoot, or help with refunds, we can be counted on to respond immediately. Please don’t hesitate to send us an email.

With the launching of our direct sales onto the market, your feedback is very important to us. Again, emails are welcome and appreciated. We are dedicated to our customers; watch us grow!

1. Focus

Kozyvacu has been focusing on vacuum products since 2002. Our factory in China produces a full range of vacuum pumps, which we provide to a wide variety of OEM customers.

2. Advanced Facility

Our manufacturing facility utilizes the most advanced CNC systems and product quality monitoring system. We deliver over 150k units of vacuum pumps each year, and our products sell all over the world.

3. R&D Strength

Kozyvacu’s strong Research and Development team has developed different products to meet the needs of a variety of customers. With nine categories of products, we are able to satisfy the vacuum pump requirements of many industries.

4. Quality

Product quality is the key to our success. We strive to develop and deliver the best products on the market. Our customers’ satisfaction is our priority.

Why Us?

How does rotary vane vacuum pump work?

vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guerick. Vacuum pumps have been used in different industries, and different types of vacuum pumps have been developed. Rotary vane vacuum pumps are the most common. The following animation demonstrates how a rotary vane pump works.



“The vacuum worked good on my 2005 Ford Explorer. I didn’t have to add the full bottle of oil to the pump. Pulled a vacuum twice so far one for 30 and one for 2 hours. 3.5 CFM is all that was needed for my SUV.”

Todd Butler

“I used this to pull a deep vaccum on my home air conditioning system when the compressor went out. It did a great job, it wasn’t very fast but perfect for what I needed especially for the price. Definitely a good quality pump for the money.”

Nathan Price