About This

• POWERFUL 4-POLE ALL-COPPER MOTOR: This HVAC vacuum pump is equipped with a premium 4-pole all-copper motor that provides a powerful 1/4 horsepower while ensuring excellent conductivity and efficient heat dissipation. With 3.5 CFM free air displacement and 1720 rpm rotating speed, it reaches an ultimate vacuum of 5 Pa, providing strong suction for fast, thorough vacuuming. The rapid cooling system effectively prevents overheating and ensures long-term reliability
• USER-FRIENDLY DESIGN: Nilight 3.5CFM single-stage vacuum pump boasts a durable die-cast aluminum housing for durability and reduced maintenance. The vacuum pump features a oil inlet and a graduated oil sight glass for timely oil replenishment and level checks; a simple on/off switch provides convenient pump control, and a comfortable handle for portability. Non-slip rubber base ensures stability during use, while anti-backflow design prevents refrigerant backflow for safe operation
• COMPATIBILITY & MULTIFUNCTIONALITY: This AC vacuum pump is compatible with a variety of refrigerants, such as R22, R404a, R134a, and R410a. It is suitable for commercial and residential applications, including refrigeration equipment maintenance, HVAC repair, resin degassing, and other vacuum applications. Equipped with a 1/4" SAE inlet fitting, it can meet your vacuuming needs in various scenarios—its versatility makes it ideal for industries such as HVAC, automotive, laboratory, and packaging
• SAFE OPERATION: The HVAC vacuum pump employs advanced noise reduction technology, minimizing operating noise to 65 dB or less, creating a comfortable working environment. The oil cap features a built-in cotton filter that separates oil mist from exhaust gas, reducing environmental pollution and eliminating the risk of oil splashing. Its excellent starting torque design ensures easy starting and high efficiency, allowing for perfect operation even at lower ambient temperatures and voltages
• LEAK CHECK METHODS: Methods for checking vacuum pump for ac system leaks: 1) Connect the vacuum pump automotive inlet to a vacuum gauge. 2) Tighten all inlets, start the machine, and check for oil mist after a few minutes. If there is no oil mist, the air vacuum pump is in good condition. If smoke continues to come out, the A/C vacuum pump is leaking. Note: A refrigerant pressure gauge cannot detect vacuum levels. Please repeatedly check that the external connections are tightened