During rehabilitation of a pipe system, such as one or more pipes of a sewer pipe system, a cleanout provides access the pipe system. The cleanout is used to plug an upstream portion of the pipe system and to allow for access to monitor the rehabilitation of the system, which may utilize CIPP repair. The plug includes a flow-through portion to allow for the removal of sewage in the blocked or plugged pipe, which allows for the continued use of the sewage system via a house, residence, or other structure connected to the sewer pipe system. An alert can be used as well to allow for the selective removal of sewage via the flow through plug and an associated removal pipe.

During rehabilitation of a pipe system, such as one or more pipes of a sewer pipe system, a cleanout provides access the pipe system. The cleanout is used to plug an upstream portion of the pipe system and to allow for access to monitor the rehabilitation of the system, which may utilize CIPP repair. The plug includes a flow-through portion to allow for the removal of sewage in the blocked or plugged pipe, which allows for the continued use of the sewage system via a house, residence, or other structure connected to the sewer pipe system. An alert can be used as well to allow for the selective removal of sewage via the flow through plug and an associated removal pipe.

Techniques for implementing and/or operating a pipe handling system that includes an inboard bore plug assembly and an outboard bore plug assembly, which facilitate plugging a pipe bore in a flexible pipe. The inboard bore plug assembly includes a first inflatable plug having a first inflatable bladder that defines a first fluid cavity and a first inflation port opening and a first inflation fluid port secured within the first inflation port opening. The outboard bore plug assembly includes a second inflatable plug having a second inflatable bladder that defines a second fluid cavity, a second inflation port opening, and a bore port opening, a second inflation fluid port secured within the second inflation port opening, and a bore fluid port secured in the bore port opening to enable the pipe bore in the flexible pipe to be pressurized to an elevated fluid pressure.

Techniques for implementing and/or operating a pipe handling system that includes an inboard bore plug assembly and an outboard bore plug assembly, which facilitate plugging a pipe bore in a flexible pipe. The inboard bore plug assembly includes a first inflatable plug having a first inflatable bladder that defines a first fluid cavity and a first inflation port opening and a first inflation fluid port secured within the first inflation port opening. The outboard bore plug assembly includes a second inflatable plug having a second inflatable bladder that defines a second fluid cavity, a second inflation port opening, and a bore port opening, a second inflation fluid port secured within the second inflation port opening, and a bore fluid port secured in the bore port opening to enable the pipe bore in the flexible pipe to be pressurized to an elevated fluid pressure.

A self-adaptive air bag blocking device is disclosed. The device includes an air bag, a first gas conveying pipe and a second gas conveying pipe, wherein an air chamber is formed in the air bag, a ring-shaped abutting surface is formed on the peripheral side of the air bag, so that the abutting surface abuts against a mouth of a container. The first gas conveying pipe is communicated with the air chamber and the outer part of the air bag, so that air enters the air chamber to enable the air bag to expand. The abutting surface is elastically deformed and tightly abuts against the inner wall of the container to form air-tight abutment, and the second gas conveying pipe is arranged on the air bag, so that air enters the container through the second gas conveying pipe, and thus the working liquid is discharged.

The inventive concept provides a flow control system. The flow control system includes a damper provided within the pipe for controlling an opening/closing rate of the pipe by a contraction or an expansion; and a pressure control unit for supplying a gas into the damper or exhausting an inside of the damper, and wherein the pressure control unit includes a pressure control pipe for flowing the gas to/from within the damper through an inlet of the damper.

The inventive concept provides a flow control system. The flow control system includes a damper provided within the pipe for controlling an opening/closing rate of the pipe by a contraction or an expansion; and a pressure control unit for supplying a gas into the damper or exhausting an inside of the damper, and wherein the pressure control unit includes a pressure control pipe for flowing the gas to/from within the damper through an inlet of the damper.

A trenchless integrative repair method includes steps of: S1, pre-casting steel rings according to an internal diameter of a defect pipeline, and forming grouting holes in the steel rings; S2, loading the steel rings to a defect position inside the pipeline, and fitting the steel rings to an internal wall of the pipeline to form reinforcing rings; S3, selecting a number of the grouting holes according to subsidence distribution; drilling a hole in the pipeline to reach a subsidence position and inserting a grouting pipe; steadily grouting the subsidence position with a polymer grouting system, and observing a lift condition of the pipeline; removing the grouting pipe after the pipeline is lifted to a predetermined level; and S4, pulling a lining pipe into the pipeline, and fitting the lining pipe to the steel rings and pipeline walls adjacent to the steel rings; curing the lining pipe.

A trenchless integrative repair method includes steps of: S1, pre-casting steel rings according to an internal diameter of a defect pipeline, and forming grouting holes in the steel rings; S2, loading the steel rings to a defect position inside the pipeline, and fitting the steel rings to an internal wall of the pipeline to form reinforcing rings; S3, selecting a number of the grouting holes according to subsidence distribution; drilling a hole in the pipeline to reach a subsidence position and inserting a grouting pipe; steadily grouting the subsidence position with a polymer grouting system, and observing a lift condition of the pipeline; removing the grouting pipe after the pipeline is lifted to a predetermined level; and S4, pulling a lining pipe into the pipeline, and fitting the lining pipe to the steel rings and pipeline walls adjacent to the steel rings; curing the lining pipe.

Techniques for implementing and/or operating a test head that includes an end cap assembly; a bore plug assembly including a plug fastener mechanism; an inflation fluid port and an annulus fluid port that open through the end cap assembly; and an internal inflation fluid conduit that connects the inflation fluid port to the plug fastener mechanism. The end cap assembly includes a cap end plate that covers an open end of a pipe segment, a cap sleeve to be disposed around the pipe segment, and a cap fastener mechanism that runs along an inner surface of the cap sleeve and that expands inward such that the cap fastener mechanism engages an outer surface of the pipe segment. The plug fastener mechanism is to be disposed within a pipe bore of the pipe segment and expands outward such that the plug fastener mechanism engages an inner surface of the pipe segment.