VIVOHOME 110V 1/4 HP 3.5 CFM Rotary Vane Vacuum Pump — Single-Stage, 5 Pa Ultimate Vacuum

The VIVOHOME 110V 1/4 HP 3.5 CFM single-stage rotary vane vacuum pump is a compact, fast-performing tool for evacuating air and moisture from automotive and HVAC refrigeration systems.

This single-stage rotary vane pump combines a 180W (1/4 HP) motor with a 3.5 CFM flow rate to reach deep vacuums quickly, making system evacuations and leak checks more reliable. Built with a one-piece die-cast aluminum housing, a four-pole pure copper motor, and multiple filtration layers, the unit balances performance with durability and user-focused features such as an oil sight window, bottom drain valve, and ergonomic handle.

How quickly and deeply can this pump evacuate an AC system?

The VIVOHOME pump achieves an ultimate vacuum down to 5 Pa and is rated to reach that level in approximately three minutes under typical conditions, thanks to its 3.5 CFM displacement and 1440 r/min motor speed. This rapid evacuation reduces downtime during service and helps remove moisture before refrigerant charging.

• 3.5 CFM flow rate for efficient evacuation
• 1/4 HP (180W) motor operating at 1440 r/min
• Ultimate vacuum level: 5 Pa, roughly three-minute pull-down
• Motor current protection prevents overload during operation

Which refrigerants and fittings work with this pump?

The pump is designed to support common refrigerants including R134a, R12, R22, and R502; it can also be used with R410A when a 5/16-inch adapter (not included) is added. Dual intake fittings increase compatibility with various service hoses and manifold sets.

• Compatible refrigerants: R134a, R12, R22, R502 (R410A with adapter)
• Intake fittings: 1/4-inch SAE and 1/2-inch Acme for flexible connections
• Adapter requirement noted for R410A applications
• Suitable for automotive and light HVAC service tasks

What safety and filtration features protect the pump and system?

VIVOHOME included several protections to extend pump life and reduce contamination risks: an overcurrent/phase-loss protection circuit, a coarse 304 stainless steel intake filter to block debris, and an exhaust-side cotton layer to trap oil mist and impurities. These measures preserve internal components and help maintain cleaner working conditions.

• Built-in motor current protection for overload/phase-loss safety
• 304 stainless coarse filter prevents particle ingress
• Cotton exhaust filter captures oil mist and fine contaminants
• Cooling fan and ~65 dB low-noise operation for comfortable use

How does the pump make routine service and maintenance easier?

The design focuses on straightforward, technician-friendly operation: a clear oil sight window lets you monitor fluid levels, a bottom drain valve simplifies oil changes without spills, and an ergonomic handle plus non-slip base make transport and placement easier. The unit’s relatively lightweight but rugged die-cast construction helps it withstand workshop conditions.

• Clear oil viewing window for quick checks
• Bottom oil drain valve for neat oil changes
• Ergonomic handle and non-slip base for portability and stability
• Durable die-cast aluminum housing resists impacts

Who is this for: The VIVOHOME 110V 1/4 HP 3.5 CFM rotary vane vacuum pump suits HVAC technicians, automotive service professionals, and DIYers who perform refrigerant evacuation, moisture removal, and system troubleshooting. It’s best for light- to medium-duty service tasks where a portable, dependable pump with good filtration and fast pull-down times is needed. If you frequently work with R410A, plan to obtain the required 5/16-inch adapter to ensure full compatibility.