We may receive a commission on purchases made from links. HVAC professionals need a good vacuum pump to evacuate air, moisture, and contaminants from refrigerant lines before recharging older systems ...

In principle, industrial vacuum pumps are merely compressors run with the inlet attached to the vacuum system and the outlet open to exhaust. In smaller sizes, compressors and vacuum pumps are often ...

The COMBI WVD vacuum booster pump unit features high pumping speed and low ultimate pressure, from atmosphere down to the 10-3 hPa (mbar) range. This makes it ideal for both stand-alone operation and ...

Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...

This feature follows on from Restoring suck ‘n’ blow, here. Vacuum tanker pumps are simple beasts, so the job is straightforward, yet there are still one or two things to watch. • Don’t throw away the ...