White Knight has released the PPMC Mini Pumps, which feature PTFE/PFA fluid paths for high-purity chemical processes. The pumps are capable of up to 300 ml/min flow rates and 160 psi discharge pressures. They feature solenoid valves that actuate each suction and dispense action.
Mini-pumps operate by two solenoid valves that actuate both the suction and dispense actions of the pump. While spring-loaded checks enable the pump to mount in any direction, an upward flow path is preferred to better evacuate air bubbles from the fluid line and to improve repeatability.