Orion Motor Tech 4 CFM Single-Stage Vacuum Pump — 1/3 HP, Aluminum Housing, R134a/R410a Compatible Kit

Designed for technicians and DIYers working on automotive and light commercial air conditioning systems, this pump combines a 1/3 hp all-copper motor with a 4 CFM displacement to remove moisture and non-condensables before charging. Built with a reinforced aluminum housing, an oil sight glass, and accessory fittings, the OMT pump supports common refrigerants such as R12, R22, R134a, R410a and R502 while offering features that simplify routine service tasks.

How quickly will this pump pull a vacuum on my AC system?

The 4 CFM motor delivers efficient airflow to reach deep vacuum levels faster than lower-capacity pumps. Under typical conditions it can draw systems down to around 37.5 microns (5 Pa), allowing for reliable moisture and air removal prior to refrigerant charging.

• 4 CFM displacement for faster evacuation
• Targets deep vacuum levels: approximately 37.5 microns (5 Pa)
• 1/3 hp all-copper motor for steady torque and longevity

What design elements protect the pump and simplify use?

The unit’s reinforced aluminum alloy casing dissipates heat and resists corrosion, extending service life in workshop environments. An intake filter and oil trap guard the pump internals from particulates and oil mist, while a sight glass and stamped scale let you monitor oil level at a glance.

• Aluminum alloy housing for heat dispersion and durability
• Intake filter and trap reduce contaminants entering the motor
• Oil sight glass and level scale for easy maintenance checks

Which refrigerants and hose sizes does this pump support?

The pump is built for common HVAC and automotive refrigerants, making it a flexible choice across many systems. It accepts standard hose diameters so you can integrate it with most manifold gauges and service lines used in the field.

• Compatible with R12, R22, R134a, R410a and R502 refrigerants
• Fits 1/4", 3/8" and 1/2" hoses for broad compatibility
• Works with manifold gauge sets and common service fittings

What comes in the kit and how does it support service work?

The pump ships as a service-ready package containing consumables and simple accessories to get you started. Included items reduce the need to source separate oils or sealing supplies when performing vacuum and charging procedures.

• Includes pump lubricant and an absorptive oil to protect internals
• Comes with gloves for safe oil handling and Teflon tape for threaded seals
• Nonslip handle and compact footprint for easy transport between jobs

Who this is for: The OMT 4 CFM single-stage vacuum pump is aimed at automotive technicians, HVAC service professionals, and capable DIYers who need a compact, reliable evacuation tool for a variety of refrigerant systems. It’s well-suited when you require a portable pump that balances speed with durability for routine system evacuation, bench testing, vacuum packaging or light-duty thermoforming and degassing tasks.