A peristaltic pump device includes a resilient tube secured in a pump housing with a rotor having rollers squeezing against the resilient tube facilitating the pumping of a liquid or gas. A cylindrical rotor rotates in a bore provided in the pump housing. The rotor has steps in which rollers freely slide and rotate. As the rotor rotates, the rollers also rotate and are slidingly held in the rotor step thereby frictional contact with the compressing resilient tube and consequently the liquid or gas within goes out of the resilient tube. The pump is inexpensive to build, reliable, and by design promotes the long life of the resilient tube as compared to existing roller type peristaltic pumps.

The present disclosure provides apparatuses and methods related to a high pressure processing device that is configured to simplify batch processing. In an embodiment, a high pressure processing device includes a processing module configured to reduce a particle size of a material or achieve a desired liquid processing result for the material, a pump configured to pump the material to an inlet of the processing module, a recirculation pathway configured to recirculate the material from an outlet of the processing module back to the pump, an input device configured to receive at least one user input variable, and a controller configured to (i) determine a number of pump strokes for the pump based on the user input variable, and (ii) control the pump according to the determined number of pump strokes so that the material makes a plurality of passes through the processing module.

A disposable medical flow-regulating assembly includes flow-directing units, with multiple fluid-flow lines entering each of the flow-directing units. The flow-directing units are interconnected by a fluid-flow line that extends between them. Each of the flow-directing units includes a rotational insert member that regulates which of multiple flow passages through the flow-directing unit is open and which are closed, based on the angular position of the insert member.

A pump system for an atomizer nozzle system having at least two atomizer nozzles, in particular for an electrohydrodynamic atomizer as well as a method for operating an electrohydrodynamic atomizer, wherein the pump system comprises at least one hose assembly as well as at least one pump rotor (7) and at least one rolling body (6) for forming a rolling region of a peristaltic pump, wherein the hose assembly comprises at least the same number of hose channels as the number of atomizer nozzles, and in that each hose channel is assigned to an atomizer nozzle and connects it to the rolling region.

A peristaltic pump precise dosing control system includes a driver, a pump head, pipeline switching means, a metering pipeline, and a discharge pipeline. An elastic tubing is provided in the pump head, and the outlet end of the elastic tubing is connected to the pipeline switching means. The driver drives the pump head to rotate to pump the liquid in the elastic tubing to the outlet end of the elastic tubing. The driver is electrically connected to the pipeline switching means so as to be capable of controlling the pipeline switching means to switch to the output pipeline with which the outlet end of the elastic tubing is connected. The pipeline switching means is driven to switch the outlet end of the elastic tubing from a state of connection with the discharge pipeline to a state of connection with the metering pipeline.

The present disclosure provides apparatuses and methods related to a high pressure processing device that is configured to simplify batch processing. In an embodiment, a high pressure processing device includes a processing module configured to reduce a particle size of a material or achieve a desired liquid processing result for the material, a pump configured to pump the material to an inlet of the processing module, a recirculation pathway configured to recirculate the material from an outlet of the processing module back to the pump, an input device configured to receive at least one user input variable, and a controller configured to (i) determine a number of pump strokes for the pump based on the user input variable, and (ii) control the pump according to the determined number of pump strokes so that the material makes a plurality of passes through the processing module.

A peristaltic pump may include a rotor rotatably mounted between a base of the peristaltic pump head and an end cap of the peristaltic pump head. The peristaltic pump may include an arcuate case between the base and the end cap partially surrounding the rotor. The peristaltic pump may include an arcuate occlusion bed removably mounted between the base and the end cap. The arcuate case and the arcuate occlusion bed form a cylindrical body around the rotor. The peristaltic pump may include a locking handle hingedly mounted to the arcuate occlusion bed, wherein the locking handle includes a bar extending between a pair of cam members, each cam member including a cam slot that engages a respective pin extending from the base and the end cap.

A peristaltic pump may include a rotor rotatably mounted between a base of the peristaltic pump head and an end cap of the peristaltic pump head. The peristaltic pump may include an arcuate case between the base and the end cap partially surrounding the rotor. The peristaltic pump may include an arcuate occlusion bed removably mounted between the base and the end cap. The arcuate case and the arcuate occlusion bed form a cylindrical body around the rotor. The peristaltic pump may include a locking handle hingedly mounted to the arcuate occlusion bed, wherein the locking handle includes a bar extending between a pair of cam members, each cam member including a cam slot that engages a respective pin extending from the base and the end cap.

A peristaltic pump (1) of the type comprising a stator which supports a portion of tube or sub-pump tube intended for the passage of a fluid to be pumped and a pressor element adapted to exert a pressure on said sub-base to determine a cyclical narrowing of the latter for the movement of the fluid inside it; the pump (1) comprises: —a support base (2) provided with first locking means (22) for a body defining the stator; —a stator (3), constituted by a hollow body provided with an internal groove (37) which extends for at least 360° and which accommodates said sub-pump tube (7), keeping it exposed towards the inside of the same stator, and provided with seconds locking means (30) complementarily shaped with respect to said first locking means (22) to allow locking of said stator (3) on said base (2); —a single pressor element (4) provided with motorization means for rotation about its own axis, so as to make it move along a circular trajectory when it is in contact with said sub-pump tube (7); and in that the value of the compression of the tube (7) is different along the trajectory followed by said pressor (4) so as to determine the gradual compression, the gradual distension and the total occlusion and allow the peristaltic action on the tube (7) same.

A hose pump rotor includes a main rotating shaft. The main rotating shaft includes a main shaft and a rotor base which are fixedly connected to each other, roller support arms are symmetrically arranged on the rotor base and outer ends thereof are connected to rollers, with axes of the rollers being parallel to an axis of the main shaft, the roller support arms and the rotor base form a radially-displaceable limiting fit, and the roller support arms and the rotor base form a locking fit. The rotor base includes a groove enclosed by a bottom plate and side plates disposed on opposite sides thereof, wherein the bottom plate is fixedly connected to the main shaft.