VEVOR Vacuum Pump Single Stage 340 L/min(12CFM) Inlet port 1/4

AC Refrigerant Vacuum Pump with Double-Stage Design for Deep 0.3 Pa Ultimate Vacuum

This AC refrigerant vacuum pump has two stages that work together to remove more air and moisture from refrigerant lines than single-stage pumps. It can reach a vacuum level of 0.3 Pa, which removes moisture and gases that cannot be condensed from the system and would otherwise damage the compressor. Because the draw is deeper, fewer toxins remain in the line. This feature means that the cooling system will work better after it has been charged. When it comes to HVAC and refrigeration systems, this level of vacuum is especially helpful because even small amounts of moisture can cause ice to form or acid to accumulate over time.

The heavy-duty aluminum alloy housing of the pump supports the internal components needed to withstand this deep pressure without cracking or compromising the seal's integrity. To maintain the unit's maximum vacuum rating during longer evacuation cycles, a powerful copper motor powers the two-stage system continuously. Because the base is shock-proof, the pump stays steady on uneven surfaces on the job site. This feature keeps the pump running consistently.

12 CFM Flow Rate for Fast, Efficient Evacuation

With a free air displacement rate of 12 CFM, this vacuum pump can quickly evacuate AC systems and refrigerant lines, saving time on both home and business projects. When you have many service calls or installations to do in a short time, faster evacuation means less time spent sitting between steps. Not only that, but the faster flow rate also helps remove air from longer line sets without a significant loss of efficiency.

The pump's flow rate makes it useful for many jobs, such as maintaining home air conditioners, working on car AC systems, vacuum packaging setups, and refrigerator servicing. The 1 HP motor delivers steady power, which supports the 12 CFM rating. This feature means the displacement rate remains the same even under load. That consistency is one of the things that makes this pump good for both occasional home use and more regular use in industry.

Dual 1/4" & 3/8" SAE Inlet Ports for Flexible Hookup

The pump has 1/4" and 3/8" SAE inlet ports, so technicians can connect to hoses of different sizes without buying separate adapters for each job. Because you can connect the inlet to any hose you have on hand, this two-port setup saves time when setting up and taking down. It also reduces the number of fittings you need to bring from one job site to another.

Because hose diameters can vary from system to system or by manufacturer, having two built-in inlet sizes makes the pump more useful for HVAC, automotive, and refrigeration work. That makes it easier for technicians to work on different kinds of equipment without being bound to just one hose configuration. The SAE-standard threading makes the ports work with gauge sets and manifold lines that are easy to find.

Backflow Prevention System to Stop Oil Contamination

By preventing oil from flowing back into the chamber, this vacuum pump's backflow-prevention system keeps the container and its attached tubes clean. Keeping oil inside the pump protects both the pump's internal parts and the refrigerant lines that the technician is servicing. This feature helps keep the whole evacuation process cleaner from beginning to end. A 1/4" oil fill port makes it simple to add oil because it can be reached from the front or either side. This feature is useful no matter where the pump is placed on the job site.

An oil drain hole streamlines oil changes by letting used oil drain out more quickly during maintenance. The gas exhaust port is meant to stop oil from spouting while the pump is running. This feature keeps the area clean and stops oil from leaking. The pump requires less cleaning and care thanks to these features. This feature means the unit is always ready for the next job.

AC Refrigerant Vacuum Pump with Oil Viewing Window for Easy Level Monitoring

With an oil viewing window, workers can quickly see how much oil is in the reservoir without opening the housing or stopping what they are doing. This feature makes it easier to notice when the oil level is low before it becomes a problem, since running the pump without enough oil can reduce lubrication and accelerate wear on internal parts. Quick eye checks like this are easy to add to your pre-job routine and help the pump last longer with little extra work.

Built to handle heat during extended use, the pump does not rely solely on oil levels for safety; it can also cool itself. Technicians who use this AC refrigerant vacuum pump for multiple jobs in a single day need to keep the unit cool during longer evacuation cycles to protect the motor and seal integrity.

Built-In Thermal Protection for Extended Motor Life

Automatic built-in thermal safety prevents the motor from overheating during heavy or prolonged use, preventing the kind of burnout that can shorten a pump's useful life. This safety feature is especially useful in business and industrial settings where the pump may run for extended periods without stopping. 

Preventing overheating also helps maintain the AC refrigerant vacuum pump's performance throughout each job, so the output does not drop as the unit gets hot. It is easier to move the pump from cars to job sites, storage areas, and other places because it has an ergonomic grip handle. This pump is durable, easy for technicians to use on HVAC, auto, and home refrigeration jobs, and portable, with heat protection.