Airovac Pumps & Engineering has become one of the leading manufacturers of Liquid Ring Vacuum Pumps & Vacuum Systems in India.
These combine the two-fold features of suction and pressure and hence the same unit can be employed for either function. When used as vacuum pump, they can create vacuum up to 720 mm (approx 28" Hg) provided the temperature of the sealant liquid (generally water) is below 30 °C & barometric pressure at site is 30 Inches of Hg.
In case single Vacuum pumps (liquid ring pumps, rotary vane pumps) are not suited for a certain process due to their pumping speed and / or their ultimate vacuum, a combination with twin lobe pumps can be used. These Vacuum Pumping Units consist of rotary vane pump twin lobe pumps as fore-pump and rotary vane pump or liquid ring pump as backing pump.
Liquid Ring Vacuum Pumps (LRVP) is the most used vacuum producing device in the industry.