A compressor and method for compressing a working medium, including moving a drive piston which is driven by way of a driving medium within a first cylinder between a first end position and a second end position; moving a high pressure piston which compresses the working medium within a second cylinder between a first end position and a second end position; arranging a high pressure seal for sealing the high pressure piston; arranging a magazine having a receptacle for the high pressure seal and at least one replacement high pressure seal in a first operating position, in which the high pressure piston is sealed by way of the high pressure seal; and transferring the magazine from the first operating position to a second operating position, in which the high pressure piston is sealed by way of the replacement high pressure seal.

A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.

The present disclosure provides a high-pressure fuel pump having barrel sets comprising offset, opposing barrel units within the same plane and having plungers disposed therein. The high-pressure fuel pump further includes a camshaft having at least one offset lobe and a cam ring encircling the lobe and in contact with the plungers, which translate the rotational movement of the camshaft to longitudinal movement of the plungers, controlling inflow, compression, and outflow of fuel within the pump.

A diaphragm pump includes a pump head, a pump drive, a socket formed on the pump head configured to be releasably fixed to a mounting formed on the pump drive via a rotary closure, wherein the rotatory closure includes a securing device that includes a pushrod which is received in the mounting and is configured to be biased by a spring via a lever and engages in a positive-locking manner into a bore formed on the socket for locking.

A diaphragm pump includes a pump head, a pump drive, a socket formed on the pump head configured to be releasably fixed to a mounting formed on the pump drive via a rotary closure, wherein the rotatory closure includes a securing device that includes a pushrod which is received in the mounting and is configured to be biased by a spring via a lever and engages in a positive-locking manner into a bore formed on the socket for locking.

A retainer assembly and plug for a fluid end of a pump system includes a retainer body. A plurality of tongues are movably arranged about the retainer body. The tongues are moveable between a pre-installed configuration and an installed configuration depending on the position of the retainer body relative to the tongues. In the installed configuration engaging flanges of the tongues are positioned in a retaining channel formed in a bore of the fluid end and retain the retainer assembly to the fluid end. A plug is configured to sealingly fit to the bore of the fluid end inboard of the retainer assembly and a locking mechanism is configured to secure the retainer assembly to the plug, and when so secured, the position of the retainer body is maintained relative to the plurality of tongues and the retainer assembly is maintained in the installed configuration.

A device for delivering a fluid to a consumption point is disclosed. The device comprises a pedestal comprising a mechanical coupling means for mechanically coupling the pedestal to the consumption point, a connector having an upper port and a lower port in fluidic communication, the lower port being configured to be fluidically coupled to the consumption point, and an electronic control unit for controlling the delivery of the fluid to the consumption point. The device further comprises a movable casing configured to be mounted on the pedestal and comprising a reservoir for storing an amount of the fluid, a pump system for pumping the fluid out of the reservoir to the upper port of the connector, a fluidic coupling means for fluidically coupling the reservoir to the upper port of the connector through the pump system, and an electrical coupling means for electrically coupling the movable casing to the pedestal.

A device for delivering a fluid to a consumption point is disclosed. The device comprises a pedestal comprising a mechanical coupling means for mechanically coupling the pedestal to the consumption point, a connector having an upper port and a lower port in fluidic communication, the lower port being configured to be fluidically coupled to the consumption point, and an electronic control unit for controlling the delivery of the fluid to the consumption point. The device further comprises a movable casing configured to be mounted on the pedestal and comprising a reservoir for storing an amount of the fluid, a pump system for pumping the fluid out of the reservoir to the upper port of the connector, a fluidic coupling means for fluidically coupling the reservoir to the upper port of the connector through the pump system, and an electrical coupling means for electrically coupling the movable casing to the pedestal.

A power end assembly includes a crankshaft section, a crosshead section, and a connector section coupled together by one, two, or more sets of stay rods. The power end may include one or more support plates that are coupled to the crankshaft section and/or crosshead section. The crosshead section includes a plurality of individual crosshead frames. The connector section may include a plurality of individual connector plates or may be a unitary connector plate. The power end is configured to be coupled to a fluid end assembly by coupling the fluid end assembly to the connector plates.

A base station (1) and a bioprocess system (3), wherein said base station (1) comprises: a frame or housing (5), wherein said frame or housing comprises a number of valves (7a-f, 9a-d, 11a-f, 13a-e, 15a-f) into which a disposable tubing set (21) during run of the system is provided such that at least one inlet (23a-j) of the disposable tubing set is connected to at least one outlet (25a-f) of the disposable tubing set via a bioprocess separation device (31) of the bioprocess system (3); a movable pump holding device (35), which can be provided in at least two different positions, whereof one is within the frame or housing (5) and another is at least partly outside the frame or housing (5) and which comprises at least one pump main body (37), said pump mainbody comprising a connection (39) configured for connecting to a disposable pump connection part (27) comprised in the disposable tubing set (21).