VEVOR 5 CFM Two-Stage Vacuum Pump, 1/2 HP, Sparkless A2L Design

Description

5 CFM / 142 L/min Two-Stage Vacuum Pump

This 5 CFM two-stage rotary vane pump uses a 1/2 HP motor and is listed at 2.5 Pa, 25 microns and 0.003 mbar ultimate vacuum. It has a gas-ballast valve, a sparkless A2L-oriented design for R32 and R1234yf, and three service inlets. The box includes two bottles of oil.

What is in the box: Pump, user manual, one 330 ml oil bottle and one 230 ml oil bottle.

What 5 CFM / 142 L/min and a two-stage design mean

Free air displacement tells you how much air the pump can move at its inlet under flow conditions. It is not the same as the flow rate once the system is near deep vacuum. A higher CFM pump tends to shorten the time needed to remove the initial volume of air, while the final micron reading depends on the pump’s ultimate vacuum, the condition of its oil, the hoses, the manifold seals and the leak tightness of the system.

This is the stronger vacuum option for technicians who expect to work with A2L refrigerants or need a deeper final vacuum. The listing describes sparkless operation and A2L compatibility, but that does not replace local service rules, refrigerant handling procedures and the equipment-specific manufacturer instructions. Use a micron gauge and confirm the system holds vacuum before charging.

Fittings and service setup

The listed intake fittings are 1/4 in. SAE male, 3/8 in. SAE male and 1/2 in. ACME male. Check the thread and flare style against your manifold before connecting a hose. Use short, pressure-rated service hoses, replace damaged gaskets and keep the hose ends capped when they are not in use. A small air leak or a worn Schrader-core tool can make a good pump look weak because the micron reading never settles.

Where this pump fits

Use it for HVAC and refrigeration service, automotive AC work, vacuum bagging, wood stabilization and laboratory degassing where 5 CFM and a two-stage pump are appropriate. The 25-micron target is useful when moisture removal and leak confirmation matter. A 3.5 CFM single-stage pump can still handle smaller routine jobs where the fastest pull is not required.

• Evacuation: pull down with the service valves arranged according to the equipment procedure, then let the pump run long enough for moisture to leave the system.
• Leak check: isolate the pump and watch the vacuum hold. A rising gauge points to a leak or outgassing, not a reason to add refrigerant.
• Oil check: keep oil between the sight-glass marks and replace it when it looks cloudy, dark or contaminated.
• Heat: use the cooling fan and give the pump a sensible duty cycle; a hot body is a warning to stop and inspect.

Choosing this pump

Choose this pump when R32 or R1234yf service, two-stage depth and a 5 CFM workflow are priorities. Choose the 7 CFM model for more displacement, or a standard 3.5 to 4.5 CFM single-stage pump for light jobs where the extra complexity is not needed.

Before the first job

Confirm the supply voltage, set the pump on a level surface and check that the exhaust is not blocked. Fill the oil to the correct mark, close the inlet valve, and run a short no-load check while watching for unusual noise or oil movement. For refrigerant work, follow the equipment maker’s evacuation target, use a micron gauge, and never use vacuum alone as proof that a system is leak-free.

Wholesale pricing

One unit, wholesale pricing. The listed price is the wholesale rate for one pump. There is no minimum order quantity and no separate tier price, so buying one unit and buying several units use the same listed unit price.

Performance & Applications

Efficient OperationFast Heat DissipationReduce Backflow&Emissions

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Easy MonitoringEffortless GripVarious Interfaces

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Wood StabilizationRefrigeration MaintenanceLaboratory DIY

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Key Features

Sight Glass

Exhaust Fitting(Oil Fill Cap)

Fan Cover