FRISTAM FK pumps are rotary piston pumps for exceptional pumping tasks. The principle of the area seal between pistons, casings with fixed hubs and covers, permits product pumping at high levels of efficiency.

The design of the FRISTAM FK pumps prevents a backflow from the pressure side to the suction side even at high discharge pressures. The special design of the non-contact, contra-rotating pistons ensures that the product is not squeezed but is displaced non-destruc-tively.