Wanner Engineering, Inc.’s Hydra-Cell Metering Solutions model MT8 triplex metering pump is designed to handle a variety of processing fluids at low flowrates and high pressures. It features a multiple-diaphragm design to provide virtually pulse-free flow, without the need for pulsation dampeners. Flow capacity ranges from a minimum of 0.06 gph (0.227 L/h) to a maximum of 8.0 gph (30.28 L/h), with discharge pressure ratings up to 3,500 psi (241 bar), depending on flow.
http://www.hydra-cell.com/mt8-triplex-metering-pump/