A system for underwater inspection including an inspection crawler are provided. The inspection crawler includes a housing having first and second sides, a power source, a controller, an inspection tool, at least two driving wheels, and a moveable center of gravity. A method for traversing a weld joint with the inspection crawler having a moving mass is also provided. In the method, the crawler is parked proximate to the joint, and the mass is slid along a slide rail to the second end of the crawler distal to the joint. The first end of the crawler is then propelled over the joint and the mass is slid to the center of the crawler. A center portion of the crawler is then propelled over the joint and the mass is slid to the first end of the crawler. The second end of the crawler is then propelled over the joint.

Provided are an installation method and an installation device for a fluid control device capable of improving controllability of a fluid in a pipe by improving positional accuracy of a valve body inserted into a hole formed in a fluid pipe in a housing and decreasing the size, weight, and cost of construction equipment such as an operation valve device or an installation device of a fluid control valve.

Provided are an installation method and an installation device for a fluid control device capable of improving controllability of a fluid in a pipe by improving positional accuracy of a valve body inserted into a hole formed in a fluid pipe in a housing and decreasing the size, weight, and cost of construction equipment such as an operation valve device or an installation device of a fluid control valve.

Techniques for implementing and operating a system that includes a pipe segment, which has tubing that defines a bore and a fluid conduit implemented in an annulus of the tubing, and a test head. The test head includes a shell, which defines an annulus cavity, and an inflatable bladder implemented in the annulus cavity, in which the system maintains the inflatable securing bladder in a less inflated state while pipe segment tubing is not present in the annulus cavity and increases inflation of the inflatable bladder to a more inflated state when the tubing is present in the annulus cavity to facilitate securing and sealing an open end of the pipe segment in the test head to enable integrity of the tubing to be tested at least in part by flowing a test fluid into the annulus of the tubing via a testing port on the shell.

Techniques for implementing and operating a system that includes a pipe segment, which has tubing that defines a bore and a fluid conduit implemented in an annulus of the tubing, and a test head. The test head includes a shell, which defines an annulus cavity, and an inflatable bladder implemented in the annulus cavity, in which the system maintains the inflatable securing bladder in a less inflated state while pipe segment tubing is not present in the annulus cavity and increases inflation of the inflatable bladder to a more inflated state when the tubing is present in the annulus cavity to facilitate securing and sealing an open end of the pipe segment in the test head to enable integrity of the tubing to be tested at least in part by flowing a test fluid into the annulus of the tubing via a testing port on the shell.

A method, device and processing system for a G-ZED “Gaseous Zero Emissions Device” for the inspection, detection and management of gaseous permeation through composite pipe structures, termed Reinforced Thermoplastic Pipe, non-metallic or partially metallic composite pipelines and conduits, or cured type structure, and instrumented with inventive monitoring, inspection and communication systems, prefabricated, and delivered for installation, in existing lined or free-standing pipes with minimal disturbance to the operation of such pipelines. The device has a cylindrical gas chamber surrounding a portion of a continuous multilayered composite pipe to capture permeated gas directed into the gas chamber and then to a compression chamber for pressure separation, reclamation and reinjection into the pipeline gas flow or to storage. The device is monitored and controlled through individual embedded sensors, reader/activator fiber optic sensing and transmission, data transmission and a computer system for receiving and processing information.

A method, device and processing system for a G-ZED “Gaseous Zero Emissions Device” for the inspection, detection and management of gaseous permeation through composite pipe structures, termed Reinforced Thermoplastic Pipe, non-metallic or partially metallic composite pipelines and conduits, or cured type structure, and instrumented with inventive monitoring, inspection and communication systems, prefabricated, and delivered for installation, in existing lined or free-standing pipes with minimal disturbance to the operation of such pipelines. The device has a cylindrical gas chamber surrounding a portion of a continuous multilayered composite pipe to capture permeated gas directed into the gas chamber and then to a compression chamber for pressure separation, reclamation and reinjection into the pipeline gas flow or to storage. The device is monitored and controlled through individual embedded sensors, reader/activator fiber optic sensing and transmission, data transmission and a computer system for receiving and processing information.

The invention relates to a valve for modulating flow and pressure used in tubing for the transportation of liquids, which modulates the flow and pressure of the fluid, preventing the generation of air bubbles and the passage of these through the tubing, thereby preventing them being registered as consumed cubic metres. The valve comprises: two adapters with a female thread on the outer parts of the valve, same containing the internal parts of the valve; a bar having a variable number of perforations or holes, same containing a mobile disk; a mobile disk having a variable number of perforation or holes; a stainless steel screw joined to the mobile disk; and a PVC pipe containing the bar, the mobile disk and the stainless steel screw.

Techniques for implementing and operating a system that includes a pipe segment, which has tubing that defines a bore and a fluid conduit implemented in an annulus of the tubing, and a test head. The test head includes a shell, which defines an annulus cavity, and an inflatable bladder implemented in the annulus cavity, in which the system maintains the inflatable securing bladder in a less inflated state while pipe segment tubing is not present in the annulus cavity and increases inflation of the inflatable bladder to a more inflated state when the tubing is present in the annulus cavity to facilitate securing and sealing an open end of the pipe segment in the test head to enable integrity of the tubing to be tested at least in part by flowing a test fluid into the annulus of the tubing via a testing port on the shell.

A hose structure with adjustable water outlet temperature includes a hose body and a water outlet joint assembly arranged at one end of the hose body and configured for connecting a water outlet device. The hose body is provided with through cold and hot water channels. The annular hot water channel surrounds the cold water channel or the annular cold water channel surrounds the hot water channel. A temperature adjusting mechanism is provided in the water outlet joint assembly and configured for adjusting the flow rate of hot water flowing out of the hose structure.