VEVOR 3.5 CFM R32 Vacuum Pump and Gauge Kit, Explosion-Proof

Description

3.5 CFM Single-Stage Vacuum Pump

This is the smaller R32-specific 3.5 CFM kit. The listing describes an explosion-proof design for R32 service, with a 120V, 1,720 RPM pump, a 40-micron rating, a manifold gauge, three 4 ft hoses, oil, adapters and a carrying bag.

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

What 3.5 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.

This is not the standard 3.5 CFM kit with a different label. The page describes an R32-focused explosion-proof design, and the final safety depends on using compatible hoses, gauges and recovery equipment. Check the refrigerant on the equipment label before connecting anything.

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 smaller R32 systems and compact vehicle AC jobs where 3.5 CFM is enough. The smaller pump is easier to carry and takes less bench space than the 4 CFM kit. If you regularly pull larger systems or want more reserve capacity, move up to the 4 CFM R32 kit or a two-stage pump.

• 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 for a smaller R32 service kit that is easy to transport. Choose the 4 CFM R32 kit for more displacement, or the standard 3.5 CFM kit when R32-specific construction is not required.

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