VEVOR 4 CFM R32 Vacuum Pump and Gauge Kit, Explosion-Proof

Description

4 CFM Single-Stage Vacuum Pump

This is the R32-specific 4 CFM vacuum pump kit. The listing describes an explosion-proof design for R32 service, with a manifold gauge, three 4 ft hoses, oil, adapters and a carrying bag. It runs on 120V at 1,720 RPM and is rated to 40 microns.

What is in the box: Pump, manifold gauge, three 4 ft color-coded hoses, vacuum pump oil, adapter fittings and a carrying bag.

What 4 CFM and a single-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.

The R32 label is the reason to choose this version over the otherwise similar standard 4 CFM kit. Treat the listing’s explosion-proof wording as a product designation, not as permission to skip refrigerant-specific training, ventilation, ignition-source control or local service rules. Confirm that your hoses, gauges and recovery equipment are also rated for the refrigerant you are handling.

Fittings and service setup

The listed intake fittings are 1/4 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 kit fits

Use it for R32 service where the workflow calls for a compact 4 CFM pump and the listed R32-specific design. It can also be used for ordinary evacuation when the service procedure and equipment match, but the R32 designation is the main differentiator. For non-flammable refrigerants and general AC work, the standard 4 CFM kit is the simpler choice.

• 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 when R32 compatibility is a stated requirement and you want a complete case-free service kit. Choose the 3.5 CFM R32 kit if you want a smaller pump, or the standard 4 CFM kit when R32-specific construction 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

Explosion-proof DesignEfficient OperationOne-piece Pump Chamber

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3-color Rubber HoseFast Heat DissipationAccurate Measurement

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Air-conditioningAutomotiveRefrigerator

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Key Features

Manifold Gauge

Vacuum Pump Body

Three-Color Hose