Abstract: A cable routing system is disclosed having dielectric, or insulating, liner which is installed within a cable routing channel, or raceway, to subdivide the channel into at least two secondary channels. This can achieve more efficient use of space and enable more flexible placement of cables within the channels while meeting safety requirements. Installation of cables into the channel can include inserting the cables into the dielectric liner before the installation of the dielectric liner into the cable routing channel. The cable routing system can be used in an aircraft, including within space-constrained areas of the aircraft such as inside a wing.

Abstract: A raceway formed of an elongated track member, the track member having at least one elongated passage adapted to receive one or more cables, the at least one elongated passage located intermediate end channels on each side of the track member, a cover for enclosing the cables within the elongated passage of the track member, and a channel member associated with each end channel. The channel member is user determinable with at least a portion of the channel member residing in the end channel.

Abstract: A tubular product includes a tubular body made of steel and having a tube wall which includes an opening. The opening is produced by a high-speed stamping process at a stamping speed of more than 4 m/s. The opening is situated in the tube wall in a region thereof which has a tensile strength Rm>800 MPa.

Abstract: A cable cover of this invention is used for guiding the orientation of a cable that extends out from a connector. This cable cover includes a pair of divided bodies, a cable passage, and a supporting portion. The pair of divided bodies have a pair of joining faces that are to be joined to each other. The cable passage includes a bent passage portion for housing a bent portion of the cable. The supporting portion extends as a curved surface along the forward direction of the cable in the bent passage portion, and is configured to be able to support an inward portion of the bend in the bent portion.

Abstract: The invention relates to a tapping fitting, having a saddle component for positioning on and cohesively connecting to a tubular component, and having a clamping device for clamping the saddle component on the tubular component, characterized in that the clamping device has a tiltable clamping lever with a sliding profile, wherein the clamping lever is mounted via the sliding profile in a bearing shell in a first peripheral portion of the saddle component, and wherein a clamping band is attached on one side to the clamping lever at a distance from a rotation axis about which the clamping lever is tiltable in the bearing shell, and on the other side to a second peripheral portion, located opposite the first peripheral portion, of the saddle component, such that in the case of a tapping fitting positioned on a tubular component, when the clamping lever is tilted, the clamping band is biased and the tapping fitting is pressed against the tubular component.

Abstract: A bulk fluid container assembly for maturing wines or other fluid beverages comprising, a container of molded polymeric material having a plurality of sides, a bottom and a top, wherein the sides are bowed inwardly with respect to the interior of the container, the top and bottom are bowed outwardly with respect to the interior, and the sides are joined to form corners, a separate base for supporting the bottom of the container, a corner reinforcing post for each of the corners, each corner reinforcing post extending from the separate base along one of the corners. It may have a base frame for receiving the tynes of a forklift.

Abstract: There has conventionally been a problem that a cable duct must be disposed as a separate member apart from a device when cable wiring between devices is carried out, and a fixed space is necessary for disposing the cable duct, and thus the space cannot be effectively used. An electrical device incorporates an electrical unit such as an inverter that is wired to a cable, and a cable duct part that houses a cable wired to another device, and has structure in which, by providing slide structure, the size of cable duct part can be adjusted in accordance with the requirements of cable wiring.

Abstract: A blockout apparatus for preserving a through passage in a structural member formed thereabout is provided. The blockout apparatus comprises a tubular body portion having first and second ends defining mouth openings and an intermediate section extending therebetween to define a longitudinal through passage. The tubular body portion includes a gasket flange formed at least partially about each of the first and second end mouth openings to project transversely outward therefrom. A hardware mounting portion is integrated with the tubular body portion, which hardware mounting portion defines an engagement base disposed in open communication with the through passage. The engagement base is structurally augmented relative to the tubular body portion to retentively engage preselected mounting hardware for weight bearing support of an implement therefrom.

Abstract: A floor box cover includes a base plate that engages an electrical device and a cover plate connected to the base plate. The cover plate includes a first opening to expose the electrical device and a second opening to receive a lid. A connector is inserted into an aperture in the lid and engages the cover plate to secure the lid within the second opening, causing the lid to conceal the first opening. A connector gasket engages the connector to prevent the connector from being easily removed from the lid. The connector gasket may be compressed within the aperture to seal the aperture when the connector engages the cover plate. A compressible ring gasket may be friction fit within the second opening, and when the connector engages the cover plate, the lid may compress the ring gasket to seal the second opening.

Abstract: A cable exit trough defining an insert aperture for receiving a modular cable management inserts. The modular insert providing an additional cable management device such as a curved guidewall. The cable management device may alternatively be fixed to the cable exit trough. Removable snap-mounted flanges may also be included in the exit trough. The exit trough may also include an exit cover having a cover plate and a pivot plate hingedly mounted thereto for easy access to the trough.

Abstract: A cable rail assembly including a first cable rail having a base, a cover, and a closing member, a second cable rail having a base, a cover, and a closing member, and wherein the first and second cable rails are engageable with each other along a longitudinal axis of the first and second cable rails.

Abstract: An apparatus and method for repairing defects in composite materials using a tapered disk sized to fit the part being repaired. Also included is a bolt sized to fit through a central hole in the disk. A spring is positioned on the bolt with a washer. A nut is attached to the end of the bolt and tightened to place pressure on the washer to compress the biasing device. An adhesive is applied to the tapered disk prior to engaging the composite material. A threaded bushing is used to fixedly attach a second bolt completely in the hole.

Abstract: A clamp apparatus includes seat and a stopper. The stopper is force toward the seat by an elastic member, so that the stop and the seat are able to clutch and stop a tube or a multi-way valve. The seat is provided with a detachable holder which clips or presses on the tube or the multi-way valve. Thus, by interchanging the holder with another holder, the clip can fit with sizes of tubes and multi-way valves. Application of the clamp apparatus is expended with minimal accessories.

Abstract: A cable raceway having a first section adapted to be coupled with a first movable component. The cable raceway also includes a second section adapted to be coupled with a second movable component. The second section is configured to enclose a portion of the first section. The cable raceway further includes a seal member placed between the first section and the second section. The seal member is configured to isolate the first section and the second section.

Abstract: A clip includes a pair of operable jaws each of which is provided with a detachable holder. Several holders are also prepared in reserve. The holders have several kinds of shapes and sizes. Thus, by interchanging the holder with one another, the clip can fit with different kinds of tubes and multi-way valves, and with different sizes of openings or orifices. Application of the clip is expended with minimal accessories.

Abstract: A method of stimulating a subterranean formation using a tubular member with one or more burst disks therein.

Abstract: An oil pipe stopper includes an upper clamping body, a lower clamping body, and an elastic member. The upper clamping body has a central portion with an upper post, two downwardly slanting portions, and two clamping portions. The clamping portions of the upper clamping body are provided with a first stopping member and an engagement groove. The lower clamping body has a central portion with a lower post, two upwardly slanting portions, and two clamping portions. The lower post is telescopically connected with the upper post. The clamping portions of the lower clamping body are provided with a second stopping member and a third stopping member. The downwardly and upwardly slanting portions are crossed such that the first stopping member faces the second stopping member while the engagement groove faces the third stopping member. The elastic member is mounted between the upper clamping body and the lower clamping body.

Abstract: The present invention provides a silicon hose integrated with a sensor port, which includes a base hose and a sensor port. The sensor port includes a sensor connection portion and an embedded portion integrally formed therewith. By embedding the embedded portion in the hose, the sensor port is integrally fixed on an outer circumference of the hose. According to the present invention, it is possible to contribute to a reduction in cost and weight and an improvement in fuel efficiency.

Abstract: There is provided a port closing device for a compressor which is fixed to a housing of the compressor by a bolt and includes a packing and a cap. The packing closes a suction port or a discharge port formed in the housing. The packing has a first end, a second end and a peripheral surface formed between the first end and the second end. The first end of the packing has a flat seal portion that is in contact with a surface of the housing surrounding the port. The cap has a holding portion that presses the peripheral surface of the packing for holding the packing, and a pressing portion that presses the second end of the packing. The pressing portion of the cap has therethrough a hole.

Abstract: A plug for temporarily plugging a lateral line from lateral opening in a main pipeline. A distal end of the plug is inserted in the lateral line from the main pipeline. The plug includes a fitting tube and a wedge constructed for deforming a deformable portion of the fitting tube outward to plug the lateral opening. Axial movement of the wedge with respect to the fitting tube toward a flow area of the main pipeline causes deformation of the deformable portion. A gripping member may be positioned on an outer surface of the fitting tube. The plug may include a fitting on the fitting tube to facilitate gripping of the plug by a tool. A cutting and brushing assembly may be used to remove the plug from the lateral line. Methods of installing and removing lateral plugs are also disclosed.

Abstract: A wire tray configured to support and route wires of a wire bundle between electrical components includes tray walls defining a channel configured to receive corresponding wires of the wire bundle. The tray walls includes a first side wall, a second side wall opposite the first side wall and a bottom wall extending between the first and second side walls. A cover is hingedly coupled to the first side wall. The cover extends across a top of the channel between the first and second side walls. The cover has a primary latch latchably coupled to the second side wall. The cover has a secondary latch engaging the first side wall to secure the cover to the first side wall.

Abstract: Embodiments of the present invention include a system for locating and restoring service lines during pipeline restoration. According to some embodiments of the present invention, a system for service line plug transport and dispensing includes at least one magazine tray including a plurality of service line plugs and a plug advancement mechanism for pushing at least one of the plurality of service line plugs off of the magazine tray and onto an applicator fitting. According to embodiments of the present invention, the applicator fitting includes a magnet configured to interact with a magnet inside the at least one of the plurality of service line plugs.

Abstract: A pipe plug includes two or more pivotally connected plugging heads that work in combination to double block and bleed a pipe. At least one of the plugging heads has an expandable sealing element that is in communication with an inflation source. The sealing element may be an inflatable sealing element or a compression packer sealing element. A passageway—sections of which may pass through the pivotal connection and into the plugging head—carries the inflation medium from the source to the sealing element. A bleed port passageway is also provided that passes through the plugging head. The leading plugging head may include a cleaning element for sweeping away debris ahead of the plug. The plugging heads may also include a skid plate that slideably engages the interior surface of the pipe to properly orient the plugging heads within the pipe.

Abstract: A closing device for a vacuum user system or vacuum toilet system of an aircraft that makes it possible to quickly open and close a pipe connection piece in a vacuum user system or in a vacuum toilet system of an aircraft. The closing device comprises a cover; a closing element that can be inserted into the pipe connection piece and is connected to the cover by a spacer and is designed such that it substantially fully covers a cross section of the pipe connection piece; a sealing bellows located between the cover and the closing element and that at least partly encloses the spacer, wherein the sealing bellows comprises a sealing face; and an element that is movable in relation to the cover, which element is movable from a first position to a second position, wherein the movable element engages the sealing bellows such that the sealing face of the sealing bellows in the second position has a greater extension in a plane across the spacer than it does in the first position.

Abstract: An enclosure apparatus for protecting cable trays, electrical cables, pipes and/or includes other control equipment. The enclosure apparatus includes one or more linear sections and/or elbow or corner sections. The sections are configured to be joined together to form longer sections or transition sections. Each of the sections includes a protective outer layer that is fire resistant and/or blast resistant. According to an embodiment, one or more the sections includes a panel or re-enterable section that can be removed for accessing the interior of the enclosure, for example, the cables, pipes or control equipment, or for assembling the sections around an existing cable installation.

Abstract: The conduit body assembly includes a metallic conduit body having an open upper end and a metallic cover removably positionable over the upper end. A metallic threaded fastener secures the cover to the body. The metallic fastener includes a threaded post and a nut removably attached to one end of the post. The nut and the post are formed of similar non-corrosive materials so as to resist corrosion therebetween. The nut is removable from the post in an environment where corrosion between the metallic fastener and the conduit body and cover prevents removal of the threaded fastener therefrom. Removal of the nut from the threaded post permits removal of the cover from the conduit body.

Abstract: An apparatus for rapidly terminating of the flow of any fluid or particulate material through a conduit responsive to predefined dangerous conditions. A particular application will terminate fuel flow through a large fuel supply conduit in a racing vehicle responsive to a fire or accident or other dangerous condition. The apparatus includes a gas supply source that is opened responsive to actuation of the apparatus such that gas passes into a cylinder which moves to force a liquid to hydraulically expand an inflatable member which is operative to expand within the flow conduit to instantaneously terminate material flow therethrough.

Abstract: An access-hole cover for support structures, such as light poles, highway sign supports and other structures that have access holes providing access to the interior of the structure. The access-hole cover prevents or reduces water and other foreign objects from entering the interior of the structure, which can cause deterioration of the structure and components therein.

Abstract: An apparatus for sealing a pipe having a defect or penetration comprises a housing coupled to the pipe by a clamp member. A piston is mounted in the housing and the piston and housing define a chamber. The piston further comprises a port for providing fluid communication between the pipe and the chamber. A seal member is provided between the piston and the pipe and, in use, the apparatus is located over and/or around the defect or penetration in the pipe such that the seal member engages the pipe. The piston is urged towards the pipe by a fluid pressure force generated by fluid in the pipe thereby maintain sealing engagement between the seal member and the pipe and to prevent leakage of fluid through the penetration.

Abstract: The device subject of this disclosure pertains to an insulated pipe or vessel including a single piece inspection plug device having a plug component attachable to an insulating structure and forming an aperture for access to an insulated pipe or vessel, a strap component attaching a lid component to the plug component, and that the lid component can be inserted into the aperture. Also disclosed is a method of providing access to a pipe covered with insulating material and a metal jacket comprising cutting a hole in the metal jacket and inserting the bottom of the plug component into the hole and further including inserting screws or clips through at least one pilot hole. The method may include pressing a skirt of the plug component to form an outer seal of the plug to the metal jacket and/or holding the plug component to the metal jacket using at least one flexible locking ring on the bottom of the plug component.

Abstract: The invention can be used in pipelines, any devices, man holes and arrangements, at any pressures and working conditions for closable large-diameter pipes. The object of the present invention is to improve serviceability of a gate. The inventive gate comprises a lid consisting of a flange and a bottom which is caved-in inwards the pipe, a sleeve provided with a supporting ring which is welded to the bottom, arresting elements in the form of sectors inserted into a circular recess of the pipe when they are radially displaced on the flange along clamping bolts and on the supporting ring by the action of the inclined surface of a drive nut, are arranged on the end face of the flange and on the supporting ring. The nut is embodied in the form of a truncated pyramid provided with T-slots on lateral surfaces thereof.

Abstract: A pipe plug comprised of two, pivotally connected plugging heads, each plugging head having a sealing element, which work in combination to double block and bleed a pipe. The first sealing element prevents flow of product in the pipe and the second sealing element captures any leakage past the first sealing element and forces that leakage out through a fitting. A stabilization pad, connected to a flange on a nosepiece of each plugging head, prevents deformation of the sealing elements. A spring-loaded pivot arm connected to the second plugging head allows the yoke that connects the two plugging heads to rotate freely. An outward-facing raised taper projection on the pivot arm, along with a guide wheel connected to the first plugging head, prevent the yokes and plugging heads from becoming entrapped during their installation in or removal from the pipe.

Abstract: The present invention provides a test plug for use with a clean-out that extends at an angle from a pipe section of a pipe system. In general, the test plug includes a sealing assembly that is actuated by an actuating member extending at an angle from the sealing assembly. The sealing assembly includes a first plate, a second plate, a valve that is configured to draw the first and second plates together, and a ring-shaped sealing member located between the first and second plates. In various embodiments, the actuating member is configured to move the valve between an open position, in which test media may be communicated through at least one opening in the first plate and through at least one opening in the second plate, and a closed position, in which the valve seals the opening of the first plate and in which the sealing member extends outwardly to seal against an internal surface of the pipe section.

Abstract: An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the vacuum inlet port of the protective mask tester. The device also includes a sealable opening within the tubular channel and an insertable orifice plug having a set diameter for insertion into the sealable opening in order to calibrate the protective mask tester.

Abstract: A composite plug system and a process to repair a hole in a tubular pipe. The process includes the steps of inserting a fastener through an opening in an oblong inner plate having an elongated diameter and a shorter diameter. The oblong plate is inserted into the pipe hole wherein the elongated diameter is greater than a diameter of the pipe hole and wherein the shorter diameter is less than the pipe hole diameter so that the oblong plate is within the tubular pipe beneath the hole. An initially liquid adhesive filler is applied over the oblong inner plate over the pipe hole. An outer plate having a central opening and a diameter larger than the pipe hole diameter is affixed over the pipe hole so that the central opening receives the fastener. The outer plate is secured to the oblong inner plate and the tubular pipe with the fastener until the adhesive filler solidifies. After the filler solidifies, the oblong plate and the outer plate are structurally bonded to the pipe wall through adhesion.

Abstract: A closing system for pressurized pipes, includes an annular supporting structure, designed to be secured to one end of the pipe, a closing hatch mounted on the annular support, and elements for locking the hatch including a locking ring inserted into an annular cavity in the support to lock the hatch, wherein the inside edge of the hatch is tapered to form an inclined wall for coupling to a corresponding inclined wall in the annular support. The collapsible ring includes a number of sectors, one of which is fixed and integral with the hatch, while the others are hinged to the adjacent sectors, so that they can rotate on a plane parallel with the hatch until they exit from the annular seating and allow the hatch to open. The hatch is opened and closed simply by rotating it around a hinge.

Abstract: An apparatus for pressure testing a plumbing installation includes a flexible cylindrical body having a peripheral sidewall, a closed end and an open end. A positioning flange extends outwardly from the peripheral sidewall at the open end to facilitate positioning cylindrical body with an end of a pipe into which the cylindrical body has been inserted. An end wall is positioned at the closed end that is. The end wall is curved inwardly and has an inward cylindrical flow channel closed by a partially removable plug. A gripping strip is secured to the partially removable plug that closes an inward cylindrical plug and extends through and past the open end of the cylindrical body, such that upon a force being exerting upon the gripping strip the plug lifts to open the cylindrical flow channel and upon a force continuing to be exerted upon the gripping strip the cylindrical body rolls inside out thereby enabling the cylindrical body to be removed from the pipe.

Abstract: There is provided an insert to be sealingly mounted into a plug hole of a pipe having a sealing area surrounding the plug hole. The insert comprises an internal unit and a fastener. The internal unit and the fastener have corresponding cooperating sealing portions and mounting portions. The sealing portion of the internal unit is formed with a flange adapted to be forced into the plug hole. The flange and the sealing portion of the fastener have corresponding sealing surfaces. These surfaces are adapted to sealingly clamp therebetween the sealing area of the pipe, when the insert is mounted into the plug hole. One of the sealing surfaces being in the form of a sealing edge and the other being in the form of a conical surface. When the fastener is mounted onto the internal unit, the sealing portions of the internal unit and the fastener form therebetween a chamber. The chamber is in fluid communication with the outside environment, allowing atmospheric pressure within the chamber.

Abstract: A passive fire protection system for a power facility having a fire resistant wrap enclosing cable joints and adjacent power cables; a fire resistant sheet carried between the power cables and the control cables defining a fire barrier to resist fire from the power cables damaging the control cables; a fire resistant wrap on a cable drop section of the control cables so that the cable drop section is protected from burning power cables; a radiant heat shield carried on a bottom side of a hatchway cover leading from the room containing the power cables to deflect heat from passing through the hatchway cover into a floor above the basement; and, a fire penetration seal in each cable penetration opening to resist fire and heat from passing upward into adjacent floors of the power facility.

Abstract: A pipe plug includes two or more pivotally connected plugging heads that work in combination to double block and bleed a pipe. At least one of the plugging heads has an expandable sealing element that is in communication with an inflation source. The sealing element may be an inflatable sealing element or a compression packer sealing element. A passageway-sections of which may pass through the pivotal connection and into the plugging head-carries the inflation medium from the source to the sealing element. A bleed port passageway is also provided that passes through the plugging head. The leading plugging head may include a cleaning element for sweeping away debris ahead of the plug. The plugging heads may also include a skid plate that slideably engages the interior surface of the pipe to properly orient the plugging heads within the pipe.

Abstract: A pipe plug comprised of two, pivotally connected plugging heads, each plugging head having a sealing element, which work in combination to double block and bleed a pipe. The first sealing element prevents flow of product in the pipe and the second sealing element captures any leakage past the first sealing element and forces that leakage out through a fitting. A stabilization pad, connected to a flange on a nosepiece of each plugging head, prevents deformation of the sealing elements. A spring-loaded pivot arm connected to the second plugging head allows the yoke that connects the two plugging heads to rotate freely. An outward-facing raised taper projection on the pivot arm, along with a guide wheel connected to the first plugging head, prevent the yokes and plugging heads from becoming entrapped during their installation in or removal from the pipe.

Abstract: A venting probe insertion chamber that is attached to a uniquely designed port which combines the attributes of a probe insertion chamber along with the ability to vent to atmosphere gasses that are present in piping system. This invention combines the functions of two existing products in an economically viable product. This inventive design performs all task required without the need for O-rings or sealing elements present on prior art products. Creating a simpler to manufacture and maintain device that allow for a user to obtain accurate readings of temperature and pressure while using a minimal amount of tooling. The user is able to remove the protective cap while using only a single tool to prevent dislodgement of the product from the associated port. Current state of the art can potentially place a user in harm as accidental dislodgement of their product can occur having only a single operator.

Abstract: A closure plug for bores, including a cylindrical jacket of through hardened steel, whose outer peripheral surface features a toothed design.

Abstract: The present invention addresses provides a clean-out plug that seals a pipe system clean-out that includes a clean-out end and an inner surface, a portion of which is threaded. In general, the clean-out plug includes a compressible sealing member that is retained by the clean-out plug and that seals against an inner surface of the clean-out and/or the back side of the threaded portion of the clean-out. The clean-out plug may also include a cover plate that is secured to the clean-out plug via a second retaining member that engages a first retaining member of the clean-out plug. By sealing against the inner surface and/or back side of the threaded portion of the clean-out, various embodiments of the present invention do not seal within the treaded portion of the clean-out, which is often damaged by cross-threading from previous removals and reinsertions of threaded clean-out plugs.

Abstract: The invention relates to a pipeline assembly (1) and a method of installing a pipeline assembly, wherein the pipeline (10) extends at least in part on a seabed (14) and curves upwardly from the seabed along a curved section (15) thereof, the pipeline extending toward a delivery end (36) provided at the water surface (4), wherein a connecting device (27) connects the pipeline at a coupling point (30) to an anchoring device (26) at the seabed for preventing the coupling point from moving upward. The invention further relates to a pipeline device (122) comprising at least two pipeline assemblies which are interconnected at a substantial distance from the seabed.

Abstract: A removable plug adapted to seal lifting holes in tubular conduits. The plug includes a cap member having top surface and a bottom surface, the top surface having a cavity therein to facilitate removal, the bottom surface having and a longitudinally extending shaft portion wherein radially extending fins form a generally cruciform cross section.

Abstract: The present invention concerns a boiler tube plug, which is used to plug holes left in drum walls after removal of failed boiler tubes in industrial power boilers, condensers, or heat exchangers. The present invention concerns a new and innovative boiler tube sheet plug for power boilers addressing the needs in the art. The boiler tube plug of the present invention may be used in evaporators, condensers, heat exchangers and other power boilers as appropriate as known in the art.

Abstract: A section of trunking (20) has sides (22) which define a channel (34). Edge portions (32) of sides (22) are shaped so as to form further channels (34); Lid (26) has surface (29) and edge portions (30) which extend over channels (34) so as to form enclosed volumes. Screws (36) are used to fix lid (36) onto trunking section (20). Any water leaking through holes (38) and down the threads of screws (36) will be retained within channel (34) and will eventually dissipate between the side portion (30) of lid (26) and side (22) of trunking section (20). Trunking sections (20) are coupled by coupling (50) which is formed from surfaces (52, 54, 56, 58, 60, 62 64 and 66) which themselves engage internal surfaces of the trunking sections and their respective lids. Coupling (50) is provided with pairs of threaded holes.

Abstract: An expandable pipe stopper for inserting within a pipe having two rigid circular plates adapted to be inserted wholly within a pipe and an outwardly-expandable flexible seal located between peripheral surfaces of the plates so as to be capable of expanding radially. A projection is rigidly secured to or integral with a first of the plates and extends slideably through an aperture defined by the second plate. The stopper also includes a lever pivotable about an axis through the projection and cam means rigidly secured to or integral with the lever such that the lever is pivotable between a first orientation in which the flexible seal is relatively undistorted and a second orientation in which the cam means force the plates towards each other so as to axially compress and radially expand the seal for engaging with sealing contact with the wall of a pipe. A member is rigidly secured to or integral with part of a remote peripheral surface of one of the plates.

Abstract: There is provided an insert to be sealingly mounted into a plug hole of a pipe having a sealing area surrounding the plug hole. The insert comprises an internal unit and a fastener. The internal unit and the fastener have corresponding cooperating sealing portions and mounting portions. The sealing portion of the internal unit is formed with a flange adapted to be forced into the plug hole. The flange and the sealing portion of the fastener have corresponding sealing surfaces. These surfaces are adapted to sealingly clamp therebetween the sealing area of the pipe, when the insert is mounted into the plug hole. One of the sealing surfaces being in the form of a sealing edge and the other being in the form of a conical surface. When the fastener is mounted onto the internal unit, the sealing portions of the internal unit and the fastener form therebetween a chamber. The chamber is in fluid communication with the outside environment, allowing atmospheric pressure within the chamber.