VEVOR 7 CFM Two-Stage Vacuum Pump, 1/2 HP, 120V

Description

7 CFM Two-Stage Vacuum Pump

This 7 CFM two-stage pump runs on 120V at 1,720 RPM and is powered by a 1/2 HP motor. It has 1/4 in. SAE, 3/8 in. SAE and 1/2 in. ACME inlets, a gas-ballast valve, backflow prevention and two bottles of oil. Its larger displacement is useful when evacuation speed matters.

What is in the box: Pump, user manual and two 250 ml bottles of vacuum pump oil.

What 7 CFM 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.

The specification table lists 20 Pa ultimate vacuum for this model. That figure is less deep than the 2.5 Pa listed for the 5 CFM VP245, so displacement and ultimate vacuum are separate choices: this pump is faster by volume, while the other model is positioned for a deeper pull. Use the value shown on the product label and your own micron gauge rather than assuming all two-stage pumps reach the same vacuum.

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 larger refrigeration systems, HVAC service, evacuation of multiple lines or jobs where the pull-down time matters. Its 7 CFM capacity is useful when the system volume is substantial. For a small sealed system or a technician who needs a very light pump, the 3.5 to 5 CFM group is easier to carry.

• 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 if volume and speed are the priority and you want a two-stage body with gas ballast and multiple ports. Choose the 5 CFM A2L VP245 if the listing’s deeper 25-micron figure and A2L-oriented design are more important than the extra displacement.

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

Pure Copper CoilFast 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