seepex's MDP progressive cavity metering pumps feature a rotating unit made from Xytel ST801
The seepex MDP series progressive cavity metering pumps feature a rotating unit made from Xytel ST801, a "super tough" nylon. The material is virtually unbreakable, is more resistant to abrasion than stainless steel and runs reliably at low speeds and under high pressure. Conventional progressive cavity pumps have a rotating unit that consists of ten individual parts. The MDP rotating unit is injection molded as a single piece, which is less expensive than conventional units, easier to maintain and faster to replace. The MDP provides pulse-free metering of low- to medium-viscosity fluids with repeatable accuracy up to ±1.0%. The pumps are available in four sizes with capacities from 0.1 to 580 l/h (2.5 gpm) and pressures up to 12 bar (174 psi). They can be equipped with an electric motor with an integrated frequency inverter and forced ventilation, or with mechanical variable speed drives. Speed can be controlled from 0 to 600 rpm by a manual potentiometer or an external analog signal.