An air conditioner includes an outdoor unit for circulating refrigerant, a plurality of indoor units for circulating water, and a heat exchange device configured to connect the outdoor unit to the plurality of indoor units and perform heat exchange between the refrigerant and the water. The heat exchange device includes a plurality of ports to which the plurality of indoor units are connected. The air conditioner further includes a controller configured to control flow of the water between the heat exchange device and the plurality of indoor units, and to search pipes respectively connected to the plurality of ports. The controller can control the flow of water such that water at a first temperature flows to some of the plurality of ports and the water at a second temperature lower than the first temperature flows to other some of the plurality of ports.

A method of making-up tubular string components can include inputting to an image processor image data output from at least one camera, the image processor in response detecting positions of a tubular and a mark on another tubular, threading the tubulars with each other while inputting position data from the image processor to a controller, and the controller terminating the threading in response to the position of the mark relative to the position of the first tubular being within a predetermined range. Another method of making-up tubular string components can include, in response to inputting image data to an image processor, the image processor detecting longitudinal positions of two tubulars, threading the tubulars with each other, and a controller terminating the threading in response to the longitudinal position of one tubular relative to the longitudinal position of the other tubular being within a predetermined range.

A cap assembly includes two caps each pivotable about an axis of a respective pivot rod between an open position and a closed position, the two pivot rods arranged adjacent each other with parallel pivot axes (B) to define a hinge region, each cap having a pivot end extending into the hinge region between the two pivot rods; and a common pivot mechanism arranged to push against the pivot ends, in response to actuation of the pivot mechanism, to pivot the caps substantially simultaneously to the closed position, the common pivot mechanism comprising: a lever; a cam in connection with the lever and located in the hinge region such that actuation of the lever causes movement of the cam in the hinge region along the direction of the pivot axes; a plunger located in the hinge region between the cam and the pivot ends.

A pipeline pressure test that accounts for measurement uncertainties includes a method for performing a pressure test of a pipe section of a pipeline including receiving a desired pressure to be applied to the pipe section and a duration of time the desired pressure is to be applied to the pipe section, receiving a pressure measurement of a fluid, a temperature measurement of the fluid, a volume measurement of the fluid, and a pipe section strain measurement, determining a change in fluid pressure and a volume change, determining a pressure change uncertainty and a volume change uncertainty, checking that the pressure change uncertainty is within a pressure uncertainty threshold and that the volume change uncertainty is within a volume uncertainty threshold, determining whether the desired pressure has been applied to the inner surface of the pipe section for the duration of time; and outputting a result of the testing.

This document describes fluid handling couplings. For example, this document describes fluid handling couplings that include manually openable valves and that are configured for aseptic fluid handling usage. In some embodiments, the valves are manually openable by rotation of a collar of the fluid handling couplings.

The invention relates generally to a system used to produce a prototype part and subsequently an accurate design specification for a fluid or gas handling system/hose and or tube assembly, followed by the subsequent communication of that specification into an ordering interface that processes the specification into a usable format as a means to accurately produce and re-create the original specification in a remote location by a specific manufacturing process, in order to supply the originator of the design an accurate, working part, produced in the specified materials in a rapid, convenient and cost effective manner. The process has global applications in various industries, markets and vehicle or machinery types, particularly where it is inconvenient or prohibitively expensive to have the work performed on-site by a technician.

A fluid line quick connector has a retainer and a data matrix. The retainer is caused to move via a spigot upon insertion of the spigot within the fluid line quick connector. The data matrix is obstructed by the retainer when the spigot is not inserted in the fluid line quick connector, and is revealed when the spigot is inserted in the fluid line quick connector. When obstructed, a suitable reading and scanning of the data matrix cannot take place. And when revealed, in contrast, a suitable reading and scanning of the data matrix can occur.

A guiding plate for coupling a plurality of hydraulic valves and a plurality of hose fittings which comprises a plate, and an identifying mark. The plate includes a plurality of apertures corresponding to the plurality of hydraulic calve and is positionable over the plurality of hydraulic valves. The identifying mark on the plate for each of the plurality of apertures, the identifying mark indicating the sequence of coupling of each hydraulic valve from the plurality of hydraulic valves with each hose fitting form the plurality of hose fittings.

Irrigation line couplings are disclosed. The irrigation line couplings may each include a lockable release mechanism that may be positioned in a locked position or a released position. The irrigation line couplings may be incorporated into an irrigation manifold or other type of irrigation component, such as fittings (tees, elbows, etc.), valves, filters, pressure regulators, emitters, and adapters.

An apparatus for coding a first connection partner and a second connection partner of a bayonet lock. The first connection partner has at least two locking arms for locking the connection and is arranged on a fluid line adapter. The second connection partner has a flange ring for guiding through the first locking partner with a number of recesses which corresponds to the number of locking arms for guiding through the locking arms and is arranged on an adapter receiving member. A first locking arm has a different geometry from the other locking arms. A first recess which is associated with the first locking arm has a compatible geometry for positioning the first connection partner and the second connection partner in a predefined position, and the additional recesses have a different geometry which is not compatible with the first locking arm. The apparatus further has a mechanical coding device.