A system comprising: a dual acting pressure boosting liquid partition device; a pressure transfer device (1', 1") for pumping fluid with particles at pressures above 500 bars, the pressure transfer device (1', 1") comprising a pressure chamber housing and at least one connection port (3', 3"), the at least one connection port (3', 3") being connected to the dual acting pressure boosting liquid partition device via fluid communication means (26', 27'; 26", 27"); wherein the pressure chamber housing comprises: - a pressure cavity (4', 4") inside the pressure chamber housing, and at least one first port (5', 5") for inlet and/or outlet of fluid to the pressure cavity (4', 4"), - a bellows (6', 6") defining an inner volume (7', 7") inside the pressure cavity (4', 4"), and wherein the inner volume (7', 7") of the bellows is part of a closed hydraulic loop volume with the dual acting pressure boosting liquid partition device and is in fluid communication with the connection port (3', 3") such that drive fluid in the form of pressurized hydraulic fluid from the dual acting pressure boosting liquid partition device is allowed to enter and exit the inner volume (7', 7") of the bellows (6', 6"), wherein the pressure cavity (4', 4") has a center axis with an axial length (L'; L") defined by the distance between the connection port (3', 3") and the first port (5', 5"), and wherein the bellows (6', 6") is configured to move in a direction parallel with the center axis (C', C") over a part of the axial length (L', L") of the pressure cavity (4', 4"). a dual acting pressure boosting liquid partition device; a pressure transfer device (1', 1") for pumping fluid with particles at pressures above 500 bars, the pressure transfer device (1', 1") comprising a pressure chamber housing and at least one connection port (3', 3"), the at least one connection port (3', 3") being connected to the dual acting pressure boosting liquid partition device via fluid communication means (26', 27'; 26", 27"); wherein the pressure chamber housing comprises: - a pressure cavity (4', 4") inside the pressure chamber housing, and at least one first port (5', 5") for inlet and/or outlet of fluid to the pressure cavity (4', 4"), - a bellows (6', 6") defining an inner volume (7', 7") inside the pressure cavity (4', 4"), and wherein the inner volume (7', 7") of the bellows is part of a closed hydraulic loop volume with the dual acting pressure boosting liquid partition device and is in fluid communication with the connection port (3', 3") such that drive fluid in the form of pressurized hydraulic fluid from the dual acting pressure boosting liquid partition device is allowed to enter and exit the inner volume (7', 7") of the bellows (6', 6"), wherein the pressure cavity (4', 4") has a center axis with an axial length (L'; L") defined by the distance between the connection port (3', 3") and the first port (5', 5"), and wherein the bellows (6', 6") is configured to move in a direction parallel with the center axis (C', C") over a part of the axial length (L', L") of the pressure cavity (4', 4"). - a pressure cavity (4', 4") inside the pressure chamber housing, and at least one first port (5', 5") for inlet and/or outlet of fluid to the pressure cavity (4', 4"), - a bellows (6', 6") defining an inner volume (7', 7") inside the pressure cavity (4', 4"), and wherein the inner volume (7', 7") of the bellows is part of a closed hydraulic loop volume with the dual acting pressure boosting liquid partition device and is in fluid communication with the connection port (3', 3") such that drive fluid in the form of pressurized hydraulic fluid from the dual acting pressure boosting liquid partition device is allowed to enter and exit the inner volume (7', 7") of the bellows (6', 6"), wherein the pressure cavity (4', 4") has a center axis with an axial length (L'; L") defined by the distance between the connection port (3', 3") and the first port (5', 5"), and wherein the bellows (6', 6") is configured to move in a direction parallel with the center axis (C', C") over a part of the axial length (L', L") of the pressure cavity (4', 4").