The invention relates to the field of pipeline construction and repair, and in particular to a bimetallic protective sleeve for a weld seam of pipelines. The sleeve comprises a sleeve body, centering stops and two rubber collars. The sleeve body is made of stainless steel and configured as a ring having flared ends. The centering stops have a trapezoidal shape and evenly distributed along a transverse axis of symmetry of the sleeve body. The rubber collars are arranged symmetrically relative to the centering stops along the perimeter of the ends of the sleeve body. The technical result consists in increasing the reliability of the protective sleeve.

The invention relates to the field of pipeline construction and repair, and in particular to a bimetallic protective sleeve for a weld seam of pipelines. The sleeve comprises a sleeve body, centering stops and two rubber collars. The sleeve body is made of stainless steel and configured as a ring having flared ends. The centering stops have a trapezoidal shape and evenly distributed along a transverse axis of symmetry of the sleeve body. The rubber collars are arranged symmetrically relative to the centering stops along the perimeter of the ends of the sleeve body. The technical result consists in increasing the reliability of the protective sleeve.

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

A method for installing a device into a crude oil service operation, the method may include installing the device into a section of the crude oil service operation, wherein the device comprises a surface comprising a bonded layer coating, and may also include contacting the surface with the contaminant, wherein the contaminant is selected from the group consisting of paraffins and asphaltenes, and wherein the bonded layer is a molecularly bonded layer or a covalently bonded layer. Various systems include one having a liquid environment of paraffins and asphaltene, and a surface residing within the environment comprising a bonded layer composition. Systems also include pipelines and vessels having an internal surface therein comprising a bonded layer composition, and with hydrocarbon liquids present in the pipeline or vessel.

Methods, processes, compositions and systems for preventing leaching effects from water pipes (such as lead, steel and copper) having an inner diameter of at least approximately 12 mm. 2-part thermoset resin coating is applied to the inner surfaces of the pipes where the curing agent can be a phenol free and plasticizer free adduct type. The coating can reduce heavy metals, such as lead, from leaching from installed pipes to less than approximately 10 g/L (10 ppb). When cured, specific leachates, Bisphenol A and Epichlorohydrin from the coatings will be (less than) <1 g/L (1 ppb) with overall TOC levels measured at (less than) <2.5 mg/L (2.5 ppm). Pipes can be returned to service within approximately 24 hours, and preferably within approximately 4 hours. The methods, processes, compositions and systems can work with non-metallic pipes having metal valves and/or metal fittings.

Methods, processes, compositions and systems for preventing leaching effects from water pipes (such as lead, steel and copper) having an inner diameter of at least approximately 12 mm. 2-part thermoset resin coating is applied to the inner surfaces of the pipes where the curing agent can be a phenol free and plasticizer free adduct type. The coating can reduce heavy metals, such as lead, from leaching from installed pipes to less than approximately 10 g/L (10 ppb). When cured, specific leachates, Bisphenol A and Epichlorohydrin from the coatings will be (less than) <1 g/L (1 ppb) with overall TOC levels measured at (less than) <2.5 mg/L (2.5 ppm). Pipes can be returned to service within approximately 24 hours, and preferably within approximately 4 hours. The methods, processes, compositions and systems can work with non-metallic pipes having metal valves and/or metal fittings.

A fuel tank fill assembly includes a fuel fill tube adapted to be coupled to a fuel tank and configured to receive fuel discharged by a pump nozzle. The assembly includes a tube mounting bracket for mounting the fuel fill tube in a stationary position in a vehicle to conduct fuel to the fuel tank. A process for coating the tube mounting bracket is disclosed.

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Methods, processes, compositions and systems for preventing leaching effects from water pipes (such as lead, steel and copper) having an inner diameter of at least approximately 12 mm. 2-part thermoset resin coating is applied to the inner surfaces of the pipes where the curing agent can be a phenol free and plasticizer free adduct type. The coating can reduce heavy metals, such as lead, from leaching from installed pipes to less than approximately 10 g/L (10 ppb). When cured, specific leachates, Bisphenol A and Epichlorohydrin from the coatings will be (less than)<1 g/L (1 ppb) with overall TOC levels measured at (less than)<2.5 mg/L (2.5 ppm). Pipes can be returned to service within approximately 24 hours, and preferably within approximately 4 hours. The methods, processes, compositions and systems can work with non-metallic pipes having metal valves and/or metal fittings.

Methods, processes, compositions and systems for preventing leaching effects from water pipes (such as lead, steel and copper) having an inner diameter of at least approximately 12 mm. 2-part thermoset resin coating is applied to the inner surfaces of the pipes where the curing agent can be a phenol free and plasticizer free adduct type. The coating can reduce heavy metals, such as lead, from leaching from installed pipes to less than approximately 10 g/L (10 ppb). When cured, specific leachates, Bisphenol A and Epichlorohydrin from the coatings will be (less than)<1 g/L (1 ppb) with overall TOC levels measured at (less than)<2.5 mg/L (2.5 ppm). Pipes can be returned to service within approximately 24 hours, and preferably within approximately 4 hours. The methods, processes, compositions and systems can work with non-metallic pipes having metal valves and/or metal fittings.