BACOENG 4.2 CFM Double stage Vacuum Pump

Thought this was going to be poor, however actually works better than my more powerful "named" vac pump which failed. Very pleased.

The larger models (4.2cfm) seem to keep breaking after around 6 months, the smaller 3cfm pumps are much better and last for around 2 years.Over the last 4 years I have run around 15-16 3cfm pumps and 11 4.2cfm pumps, out of all 11, 9 died at the 6 month mark with the same issue (won’t pull a full vacuum) and the other two were due to an electrical fault in the motor (not too common but Bacoeng seem to be aware)I do all of my own pump maintenance and am very familiar with these pumps, I have fully investigated the issue and cannot deduce it, I have also sent them away to 2 local repairers who also cannot find the issue.For anyone thinking of purchasing I would recommend the smaller of the pumps for more longevityI have moves over to DSP pumps which seem to be much more reliable

The media could not be loaded. The pump was supplied with a UK plug and enough oil to fill the tank to max. It comes with a 1/4" male SAE connector so can be connected directly to the yellow service hose on regular HVAC manifold gauges with SAE fittings.The pump did a nice job of vacuum testing some vehicle aircon systems in a short time. The casing did not get noticeably warm after 15-20 minutes of operation.The only downside I would say is the noise level - measured at approx dB from 1m distance with a phone app. It would be too noisy for prolonged use inside without ear defenders.

Nice well constructed vac pump. Drew a vacuum down to 250 microns. Quiet and light compared to other makes (JAVAC)Down side ius that it only has a 1/4" SAE spigot, whereas the JAVAC version would have 1/4", 5/16" and 3/8" take offs and no gas ballast valve fitted. Other than than, good value compared to others.