Orion Motor Tech 4.5 CFM AC Vacuum Pump & Gauge Kit — Blue, 1/3 HP for R134a R410a R22

Orion Motor Tech’s OMT 4.5 CFM AC Vacuum Pump and Gauge Set is a complete, portable HVAC evacuation kit built for automotive and home air conditioning service on R134a, R22, and R410a systems.

This all-in-one kit pairs a 1/3 HP, 4.5 CFM vacuum pump with a 4-way manifold gauge, heavy-duty hoses, an electronic leak detector, refrigerant can taps and adapters, vacuum oil, and a molded carrying case so you can evacuate, test, and charge systems with fewer trips to the parts counter. The pump uses an all-copper motor and aluminum alloy casing for improved heat dissipation and longevity, while the gauge set and hoses are designed to hold up under professional and DIY use.

How quickly will the 4.5 CFM pump evacuate an automotive AC?

The 4.5 CFM rating indicates strong flow for small to medium refrigeration circuits, enabling a fast pull-down to the deep vacuum range required for moisture removal. The metal body and cooling fan help maintain performance during longer runs so the pump stays efficient under load.

• 4.5 cubic feet per minute flow for faster evacuation than compact hobby pumps
• All-copper motor for reliable torque and durability
• Cooling fan and aluminum casing reduce overheating during extended use
• 0.26 qt of included vacuum oil to start service immediately

Will the manifold gauge and hoses handle professional use?

The 4-way manifold provides real-time dual-pressure readings and service port access for accurate charging and troubleshooting. Hoses are multi-layered and color-coded to reduce setup errors and stand up to high working pressures for safe operation.

• 4-way gauge with clear dials for both high and low side monitoring
• Color-coded, 4-layer hoses rated to 800 psi working pressure
• Quick couplers and heavy-duty valves for secure connections
• Brass safety caps tethered to the pump to prevent lost parts and oil spills

Can I use this kit with different refrigerants and appliances?

Yes — the OMT kit includes fittings and adapters for common refrigerants and system types, making it suitable for vehicle ACs, home central systems, and mini-splits. The set contains R134a can taps plus R410a adapters so you can adapt to different refrigerant cylinders without extra hardware.

• Compatible with R134a, R22, and R410a refrigerants
• Included can taps and quick couplers speed refrigerant connection
• Adapters for R410a ensure safe, correct charging on high-pressure systems
• Compact case stores all components for mobile service calls

What maintenance and safety features help keep the pump working?

Orion Motor Tech designed the pump with serviceability in mind: an oil sight glass for quick inspection, a bottom drain valve for clean oil changes, and a fan to prevent overheating. Safety caps and sturdy hose construction reduce leaks and failures during transport or operation.

• Oil sight glass shows lubricant level without disassembly
• Bottom drain valve simplifies oil replacement and reduces mess
• Tethered brass caps prevent oil spills while transporting the unit
• Durable aluminum alloy casing resists corrosion for longer life

Who is this for? Technicians, mobile mechanics, HVAC DIYers, and homeowners who maintain their own systems will benefit from the OMT 4.5 CFM Vacuum Pump and Gauge Set. It’s aimed at users who want a reliable, portable kit that covers evacuation, leak detection, and refrigerant service across common refrigerants without buying multiple single-purpose tools. If you need a balanced combination of flow rate, durable components, and a neatly organized case for service calls or garage work, this kit offers an economical, job-ready solution.