A tubing assembly is provided that can comprise a plurality of tubes or lumens that can be disposed within a head of a peristaltic pump. The tubing assembly can provide a flow rate or volume capacity that is generally equal to or greater than that achieved with a comparable prior art tube while operating at higher pressures than that possible using the prior art tube. Further, in accordance with some embodiments, the tubing assembly can achieve a longer working life than a comparable prior art tube, and the load on the pump motor can be reduced such that the pump life is increased and/or a larger pump motor is not required to achieve such advantageous results.

A sanitary fitting (100) including a fitting housing (102) having a housing interior (103) into which a cartridge (106) or a cartridge adapter having a cartridge provided in a cartridge receptacle (105) is inserted, which cartridge has at least one inlet opening connected to at least one outlet opening of the cartridge (106) to conduct fluid through the cartridge (106). The fitting includes—at least one hose line (108) for supplying the fluid to the cartridge (106), which hose line has, at least at the end close to the cartridge, a hose connection element (109). The hose connection element (109) is securely held in a retaining position on the cartridge (106) or on the cartridge adapter, to prevent removal, and the free end of this element that encircles a hose opening (111) lies against the edge region of the cartridge (106) that encircles the associated inlet opening.

A sanitary fitting (100) including a fitting housing (102) having a housing interior (103) into which a cartridge (106) or a cartridge adapter having a cartridge provided in a cartridge receptacle (105) is inserted, which cartridge has at least one inlet opening connected to at least one outlet opening of the cartridge (106) to conduct fluid through the cartridge (106). The fitting includes—at least one hose line (108) for supplying the fluid to the cartridge (106), which hose line has, at least at the end close to the cartridge, a hose connection element (109). The hose connection element (109) is securely held in a retaining position on the cartridge (106) or on the cartridge adapter, to prevent removal, and the free end of this element that encircles a hose opening (111) lies against the edge region of the cartridge (106) that encircles the associated inlet opening.

Disclosed are chromatography systems employing a releasable coupling (100) for holding a fluid tubing to a spigot, the coupling comprising: a cylindrical inner component (110) for accepting a fluid tubing (30), said inner component including a resiliently deflectable portion (118) arranged to urge an outer surface of the tubing toward a spigot; and a cylindrical collar (130) having and internal through-aperture (132) for slideably accepting the inner component, the aperture and resilient portion having complementary surface formations which in a first position of the collar mounted to the inner component provide for said resilient deflection in use, and which in a second different position do not cause said deflection, the coupling being characterized in that the collar comprises a collar flange (134) extending outwardly away from the aperture of a size allowing manual manipulation of the collar between the first and second positions. Chromatography systems employing said couplings is disclosed also.

A modular fluid-carrying manifold apparatus is provided for use in hydraulic fracturing blenders and other devices. A manifold can include one or more interchangeable sections. Each section may have a flat front face with ports cut into the front face. Components such as valves and hammer unions are directly removably connected to the ports via bolts. This eliminates the need for welded-on piping. Removable, wear-resistant inserts can be located in the ports. The removable components may be considered consumable and replaced when worn out.

A modular fluid-carrying manifold apparatus is provided for use in hydraulic fracturing blenders and other devices. A manifold can include one or more interchangeable sections. Each section may have a flat front face with ports cut into the front face. Components such as valves and hammer unions are directly removably connected to the ports via bolts. This eliminates the need for welded-on piping. Removable, wear-resistant inserts can be located in the ports. The removable components may be considered consumable and replaced when worn out.

Disclosed are chromatography systems employing a releasable coupling 100 for holding a fluid tubing to a spigot, the coupling comprising: a cylindrical inner component 110 for accepting a fluid tubing 30, said inner component including a resiliently deflectable portion 118 arranged to urge an outer surface of the tubing toward a spigot; and a cylindrical collar 130 having and internal through-aperture 132 for slideably accepting the inner component, the aperture and resilient portion having complementary surface formations which in a first position of the collar mounted to the inner component provide for said resilient deflection in use, and which in a second different position do not cause said deflection, the coupling being characterized in that the collar comprises a collar flange 134 extending outwardly away from the aperture of a size allowing manual manipulation of the collar between the first and second positions. Chromatography systems employing said couplings is disclosed also.

A multi-lumen hose connector nipple and a multi-lumen hose equipped therewith. The multi-lumen hose connector nipple includes a nipple basic section through which a plurality of separate fluid conduits extend in each case between a first and a second nipple connector side, a plurality of hose lumen plug-in sockets integral with the nipple basic section, which sockets extend juxtaposed on the first nipple connector side with an intermediate hose lumen wall accommodation space left therebetween, wherein a socket interior space of each of the hose lumen plug-in sockets is assigned to a respective one of the fluid conduits and opens out axially, and a socket strutting structure within the socket interior space of at least one of the hose lumen plug-in sockets.

A multi-lumen hose connector nipple and a multi-lumen hose equipped therewith. The multi-lumen hose connector nipple includes a nipple basic section through which a plurality of separate fluid conduits extend in each case between a first and a second nipple connector side, a plurality of hose lumen plug-in sockets integral with the nipple basic section, which sockets extend juxtaposed on the first nipple connector side with an intermediate hose lumen wall accommodation space left therebetween, wherein a socket interior space of each of the hose lumen plug-in sockets is assigned to a respective one of the fluid conduits and opens out axially, and a socket strutting structure within the socket interior space of at least one of the hose lumen plug-in sockets.

A system includes first and second hose segments and a first junction device. The first hose segment includes first inner and outer hoses. The second hose segment includes second inner and outer hoses. The first junction device includes a first body including first and second chambers and a selectively openable hatch disposed on at least one of the first and second chambers. The first outer hose is fluidly connected to first chamber. The second outer hose is fluidly connected to the second chamber. The first and second inner hoses are fluidly connected. Outside of the first and second inner hoses, interiors of the first and second chambers are fluidly isolated from each other. A method of transporting liquid over land comprises connecting a first hose segment to a liquid source and connecting first and second hose segments to a first junction device.