The time required to evacuate a sealed container can be calculated using tools on the following website*:
*This is an external site, we can accept no responsibility for the content or accuracy of the information.
Rotary Vane Vacuum Pumps
Vpump Vacuum Pumps are 2 stage, oil sealed, rotary vane vacuum pumps.
Compact and resistant, Vpump refrigeration vacuum pumps are a trusly economical pump, supported in the UK initially with a 12 month warranty then later for servicing and spares. The Vpump vacuum pumps are able to achieve a 15 micron vacuum.
The vacuum pumps are available in 1.5cfm, 4cfm, 6cfm, 8cfm and 10cfm. They are supplied with a high quality vacuum pump oil and they are user switchable between 110v and 240v. There is no rewiring to be done to change the voltage. The Vpump vacuum pump is an excellent choice for an economy vacuum pump.