A magnetic quick connect for a fluid delivery system includes a male coupling member and a female coupling member. The male coupling member defines a first outer fluid communication path and includes a first magnetic material. A first inner member is disposed within the first outer fluid communication path and defines a first inner communication path. The female coupling member defines a second outer fluid communication path and includes a second magnetic material. A second inner member is disposed within the second outer fluid communication path and defines a second inner communication path. The male and female coupling members are detachably held together by an attractive force between the first and second magnetic materials such that the first and second outer communication paths are held in fluid communication, and the first and second inner communication paths are held in fluid communication.

A fire protection system can include one or more pipes coupled with a fluid source, a pipe fitting coupled with the one or more pipes downstream of the fluid source, and at least one sprinkler coupled with the one or more pipes and the pipe fitting. The pipe fitting can include a wall defining an opening, the wall having an outer diameter, a first wall thickness at the opening, and a second wall thickness inward from the opening, the second wall thickness greater than the first wall thickness. The at least one sprinkler can be coupled with the one or more pipes and the pipe fitting to receive fluid from the fluid source through the one or more pipes and the pipe fitting.

A thread protector that has an external sleeve having threads disposed on an inner side to engage with pin threads disposed on a pin end of a tubular member. The thread protector also has a flange disposed on a first end of the external sleeve to engage with the pin end of the tubular member, the threads on the inner side of the external sleeve are disposed axially adjacent to the flange and radially adjacent to the end of the pin end of the tubular member. A method of protecting the pin threads of the pin ends of the tubular members. The method includes screwing the thread protector on the pin threads of the pin end of the tubular member.

These fixtures aid in installing, sealing and securing pipe. Specifically, the invention aids in mating bell & spigot joints and securely capping open pipe ends of standard polyvinyl chloride (PVC), polyethylene (PE), and acrylonitrile-butadiene-styrene (ABS) pipe products as well as non-plastic piping by enabling equalized full circumference pressure on pipe ends to nudge, seal and/or secure pipe ends during installation or decommissioning.

These fixtures aid in installing, sealing and securing pipe. Specifically, the invention aids in mating bell & spigot joints and securely capping open pipe ends of standard polyvinyl chloride (PVC), polyethylene (PE), and acrylonitrile-butadiene-styrene (ABS) pipe products as well as non-plastic piping by enabling equalized full circumference pressure on pipe ends to nudge, seal and/or secure pipe ends during installation or decommissioning.

A housing element for food applications having a casing made of metallic material and a cover made of composite material and having a bottom surface which is closed or provided with a through-hole. The housing element is provided with a system for securing the cover on the casing, comprising at least two steps which are formed on the cover and which engage with interference inside at least two corresponding grooves formed on the casing.

A floatable pipe combination has a plastic pipe having a rear longitudinal end, on which a rear flange region is formed, and a front longitudinal end, on which a front flange region is formed, a closing cover arranged on the rear longitudinal end, and a closing cover arranged on the front longitudinal end. A pulling device is arranged on the closing cover. At least on the front longitudinal end, a flange protection with an outer protective covering is arranged. The outer protective covering is formed to radially project with respect to the outer diameter of the plastic pipe.

A floatable pipe combination has a plastic pipe having a rear longitudinal end, on which a rear flange region is formed, and a front longitudinal end, on which a front flange region is formed, a closing cover arranged on the rear longitudinal end, and a closing cover arranged on the front longitudinal end. A pulling device is arranged on the closing cover. At least on the front longitudinal end, a flange protection with an outer protective covering is arranged. The outer protective covering is formed to radially project with respect to the outer diameter of the plastic pipe.

The present invention includes: a first part (11) which has a hollow cylindrical shape and circumscribes or is inscribed in a pipe (26); and a second part (15) which has a cylindrical shape and circumscribes or is inscribed in the first part (11), wherein inclined portions (23), which have inclination angles that can hinder the second part (15) from retreating from the first part (11), are formed between the first part (11) and the second part (15) so as to correspond to each other. That is, when a pipe sealing device is mounted to the pipe and the second part (15) is retreated from the pipe (26), the inclined portion (23) of the first part (11) and the second part (15) push against each other, the first part (11) is pressed against and fixed to the pipe, and the second part (15) can no longer retreat from a limited line due to inclination angles. Connecting or closing pipes typically involves making screws or welding, and thus requires many tools and consumes much time. In contrast, such work can be conveniently performed using the pipe sealing device of the present invention. Also, a fluid inlet and outlet portion (43) is provided, and thus a pipe sealing test can be easily performed for each section.

A cap for closing an open end of a duct tube has a cylindrical side wall having a length between a closed end and an open end of the side wall. An end wall extends across the closed end of the side wall. A conical section of the side wall extends outwardly from the open end of the side wall and has an interior surface configured to guide an end of a duct tube into a hollow interior volume of the side wall. A groove in an interior surface of the side wall is configured to receive a bead around an end of a duct tube inserted through the conical section and into the hollow interior of the side wall. A plurality of pull tabs extend outwardly from the conical section and are configured to be manually pulled, pulling the cap over the end of the duct tube.