pumping of volatile liquid at low pressure

[torakesh1]

I am looking for a suitable pump for voltile liquid at low pressure condtions(0.1 - 1.0 bar).I would like to know which kind of pumps will be suitable to pump volatile liquid at low pressure

 

[dcasto]

Need more info, 1 liter/min or 10000 liters/min. Differential required .2 bar or 1 bar. How volatile? is it at its bubble point at the suction, is the NPSH available?