Liberty Series of Progressive Cavity Pumps and Aftermarket Pump Parts are considered premium pumps. They are designed to be replacements for the Liberty L-Frame Series of Progressive Cavity Pumps. Within the series, there are nine different flow sizes with flow ranges varying from less than a gallon to 250 GPM. Pumps are available in 1, 2, and 3 stages and therefore able to meet all range of discharge pressure needs of 75, 150, and 225 PSI. The pump series features a modular design, easy assembly and disassembly, NPT discharge connections, and low shear. These pumps are also maintenance-free, designed with simple pin joints, and are non-pulsating.