A flow management system includes an expandable device configured for attachment to a wall surface of a conduit and being adjustable between an expanded configuration and a collapsed configuration, an electric actuator in fluid communication with the expandable device, and a control module. The control module is configured to control the electric actuator to flow a current to the expandable device to expand the expandable device for compacting a flow blockage within the conduit to create a channel adjacent the flow blockage and to terminate a flow of the current to the expandable device to collapse the expandable device for opening the channel to a fluid flow within the conduit.

A pipe covering assembly covers a gap defined between an exterior surface of a pipe and an opening in a wall through which the pipe extends. The pipe covering assembly includes a substrate layer having a through-hole for receiving the pipe, a front surface and a rear surface. A mesh material layer is either attached to or contained within the substrate layer. An adhesive layer is directly applied to the rear surface of the substrate layer, wherein the adhesive layer includes an adhesive that is configured to be applied to the wall and the pipe. A plurality of concentric rings are either printed on the front surface of the substrate layer or disposed on a layer that is applied to the front surface of the substrate layer, each ring of the concentric ring corresponding to a pre-determined pipe diameter.

A pipe covering assembly covers a gap defined between an exterior surface of a pipe and an opening in a wall through which the pipe extends. The pipe covering assembly includes a substrate layer having a through-hole for receiving the pipe, a front surface and a rear surface. A mesh material layer is either attached to or contained within the substrate layer. An adhesive layer is directly applied to the rear surface of the substrate layer, wherein the adhesive layer includes an adhesive that is configured to be applied to the wall and the pipe. A plurality of concentric rings are either printed on the front surface of the substrate layer or disposed on a layer that is applied to the front surface of the substrate layer, each ring of the concentric ring corresponding to a pre-determined pipe diameter.

A quick-fitting pipe fitting assembly for coupling with at least one pipe element includes a pipe fitting body, at least one coupling unit, at least one gasket and a plurality of connecting elements. Each coupling unit includes a fixed coupling element integrally extended from the pipe fitting body and a movable coupling element, the gasket disposed at the coupling unit, the connecting elements movably connect the fixed coupling element with the movable coupling element, wherein the at least one coupling unit is adapted for being preassembled with the at least one pipe element and can be fastened by at least one fastening element that is capable of being operated to fasten the movable coupling element with the fixed coupling element.

A defouling device for mechanically disrupting fouling material for removal from a pipe or other a tubular member. The defouling device has inflatable portions capable of expanding to mechanically disrupt fouling material within a pipe. The defouling device may be attached to an inner luminal surface of the pipe or formed with the pipe. The defouling device expands circumferentially and radially to mechanically disrupt fouling material. The defouling device may also controllably expand longitudinally to mechanically disrupt fouling material and peristaltically pump fouling material through and out of the pipe.

A defouling device for mechanically disrupting fouling material for removal from a pipe or other a tubular member. The defouling device has inflatable portions capable of expanding to mechanically disrupt fouling material within a pipe. The defouling device may be attached to an inner luminal surface of the pipe or formed with the pipe. The defouling device expands circumferentially and radially to mechanically disrupt fouling material. The defouling device may also controllably expand longitudinally to mechanically disrupt fouling material and peristaltically pump fouling material through and out of the pipe.

A pipe unit allows refrigerant to divide or merge and includes: branch pipes; and a main pipe. The pipe unit is connected to a connection pipe, and the pipe unit and the connection pipe together form a liquid-side refrigerant channel between an outdoor unit and indoor units. The main pipe communicates with each of the branch pipes, forms a channel through which the refrigerant flows to or from each of the branch pipes, and is disposed, in an installed state, on an outdoor unit side of the branch pipes in the liquid-side refrigerant channel. The main pipe includes a first part that extends in a first direction, at least one of the branch pipes includes a second part that extends in a second direction intersecting the first direction, the first direction is horizontal in the installed state, and the second direction is vertical in the installed state.

A method and system for measuring, controlling, and recording flushing of a water distribution system (WDS) comprising each portion or subject WDS piping, by measuring, controlling and recording the selected flow rate ranges of water into and out of. The selected volume of water utilized into and out of the WDS piping can then be measured, controlled and recorded. The flow rate and volume of water into and out of the WDS piping can then be selected for each maintenance event protocol and used to determine the condition of the WDS.

A method and system for measuring, controlling, and recording flushing of a water distribution system (WDS) comprising each portion or subject WDS piping, by measuring, controlling and recording the selected flow rate ranges of water into and out of. The selected volume of water utilized into and out of the WDS piping can then be measured, controlled and recorded. The flow rate and volume of water into and out of the WDS piping can then be selected for each maintenance event protocol and used to determine the condition of the WDS.

A compact strainer having a small pressure loss which is easily cleaned without inserting and detaching screens in and from a strainer casing. Front and rear end portions of a tubular casing are respectively provided with an inlet and an outlet. A barrier divides in two a linear channel between the inlet and the outlet along a flowing direction and is provided on the outlet side so as to face the inlet. A filter portion surrounding the inlet is constituted by the barrier, a pair of screens laterally opposing each other and arranged at a predetermined interval are provided, and the upper and lower portions of an inner surface of an outer wall of the casing, and upper and lower regions of the outer wall are provided with opening portions with lids which make the inside of the filter portion communicate with the outside.