propane compressor suction drum

dear collegues,
i have a problem in propane compressor which is the suction drum get propane liquid level which lead to compressor trip.
i think it is related to the suction pressure need to be increased a little, but i need the basics on what increasing the pressure like the dew point of propane in different pressure and if there any way to can calculate it by my self to use it with other refrigerants
i hope anybody could help
thanks

Ahmed

Please don't repeat post your questions in differnet sections of the Forum. One question in the appropriate section will attract replies from members if they have anything worthwhile to respond.

Multiple entries of the same question will only serve to annoy members

sorry about that, just wanted to make people see the qustion if they just use 1 section