Orion Motor Tech 3.5 CFM A2L Vacuum Pump and Gauge Set — R1234yf/R134a/R32/R410A Kit with Sparkless Motor

Orion Motor Tech’s OMT 3.5 CFM A2L AC Vacuum Pump and Gauge Set is a complete sparkless evacuation kit designed to safely and quickly pull HVAC/R systems down to deep vacuum for R1234yf, R32, R134a and R410A service.

This all-in-one kit combines a 1/4 hp vacuum pump, a three-way manifold gauge, multiple adapters, self-sealing can taps, vacuum oil and service hoses so you can perform leak checks, evacuations and recharge prep without hunting for parts. The pump is built to handle mildly flammable A2L refrigerants with an ignition-proof switch and reduced oil mist exhaust, while the gauge and adapters cover the most common refrigerants and service ports used in automotive and small appliance air conditioning systems.

How fast and deep does this pump evacuate a system?

The OMT pump runs a 1720 rpm motor that delivers 3.5 CFM, making it suitable for routine automotive and light commercial evacuations. Under normal conditions it will pull down near 15 microns (about 2 Pa), which is adequate for moisture removal and proper system charging preparation.

• 3.5 CFM pumping speed for quicker evacuations
• 1720 rpm motor matched to a 1/4 hp drive for steady performance
• Rated to reach approximately 15 microns (2 Pa) for deep vacuum work

Is this safe to use with A2L and mildly flammable refrigerants?

Yes — the vacuum pump includes a sparkless design and an ignition-proof ON/OFF switch that reduces ignition risk when working around A2L (mildly flammable) refrigerants such as R1234yf. The oil-mist-reducing cap on the exhaust also lowers aerosolized oil content in the work area.

• Ignition-proof switch for spark-free starting and stopping
• Oil mist-free cap minimizes airborne oil particles during operation
• Intended for compatible service practices with A2L refrigerants (follow local regulations)

What service tools and adapters are included in the set?

The kit comes ready for many common AC tasks: a three-way manifold gauge for pressure readings, self-sealing can taps for R134a and R1234yf, R134a quick couplers, R134a-to-R1234yf adapters, three service hoses and a bottle of vacuum oil. These accessories let you switch between refrigerants and connect to standard service ports without extra purchases.

• Three-way manifold gauge with clear dial and calibration adjustment
• R134a & R1234yf self-sealing can taps and quick couplers
• R134a to R1234yf adapters plus three service hoses and vacuum oil

How easy is the gauge and pump to read, adjust, and maintain?

The manifold gauge features a clear face for fast reading and a calibration adjustment to ensure accurate diagnostics. The combined oil fill/exhaust port simplifies oil checks and reduces maintenance time while the pump's quiet design keeps noise under 70 dB for a more comfortable workshop environment.

• High-precision gauge with visible dial and calibration control
• Combined oil fill/exhaust port simplifies maintenance and lowers misting
• Runs at or below 70 dB for reduced operational noise

Who is this for? The Orion Motor Tech OMT 3.5 CFM A2L AC Vacuum Pump and Gauge Set is aimed at professional technicians, mobile service providers and informed DIYers who service automotive and small HVAC/R systems and need a compact, portable, and safe evacuation solution. It’s particularly useful for shops that work with R1234yf or other modern refrigerants and want a single kit that includes the pump, manifold, adapters and consumables needed for most service calls. Always follow refrigerant handling rules and local safety codes when using A2L-compatible equipment.