Systems and methods for cutting an existing pipe carrying a fluid under pressure include using a cutting assembly having first and second linear cutters spaced by a lateral width. The cutters are moved from a retracted position to an extended position thereby to cut a coupon from the existing pipe. An insertion valve may then be installed on the existing pipe at the location where the coupon was removed. The insertion valve includes a valve element that is movable between open and closed positions. In some examples, the systems and methods include a check valve that moves from an open position to a closed position as the valve element moves from the closed position to the open position, thereby to facilitate repair and/or replacement of the insertion valve.
F16K 43/00 - Moyens de fermeture auxiliaire des soupapes, pouvant prendre à leur compte, en cas de réparation de la soupape, p. ex. un regarnissage des rondelles, la fonction des moyens normaux de fermetureDispositifs pour le remplacement temporaire des parties de soupapes dans le même but
F16K 27/04 - Structures des logementsMatériaux utilisés à cet effet des tiroirs
F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
Systems and methods for cutting an existing pipe carrying a fluid under pressure include using a cutting assembly having first and second linear cutters spaced by a lateral width. The cutters are moved from a retracted position to an extended position thereby to cut a coupon from the existing pipe. An insertion valve may then be installed on the existing pipe at the location where the coupon was removed. The insertion valve includes a valve element that is movable between open and closed positions. In some examples, the systems and methods include a check valve that moves from an open position to a closed position as the valve element moves from the closed position to the open position, thereby to facilitate repair and/or replacement of the insertion valve.
Systems and methods are disclosed for protecting a tether line within a pressurized pipe. As the tether line is extended and retracted, portions of the tether line are prevented from directly engaging jagged profiles formed in the pressurized pipe.
F16L 5/10 - Scellement en utilisant uniquement des segments ou des manchons d'étanchéité
F16L 47/34 - Branchement en charge, c.-à-d. établissement de dérivations en traversant les parois des tuyaux pendant qu'ils transportent des fluidesLeurs accessoires
F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
F16L 41/04 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet
F16L 55/10 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches
F16L 55/30 - Caractéristiques de structure des moyens de propulsion, p. ex. traction par des câbles
F16L 55/46 - Lancement ou récupération des hérissons ou des chariots
4.
Systems and methods for accessing and monitoring a fluid within a pressurized pipe
Systems and methods for accessing and monitoring a fluid within a pressurized pipe include a nozzle coupled to a section of the pressurized pipe and defining an open proximal end fluidly communicating with the pressurized pipe through an access hole formed in the pressurized pipe, an open distal end, and an interior passage extending from the open proximal end to the open distal end. A cover plate is coupled to the open distal end of the nozzle. A valve element is disposed in the interior passage and movable between an open position, in which the valve element is entirely disposed within the nozzle, and a closed position, in which a proximal section of the valve element is disposed in the pressurized pipe. A sensor port extends through a proximal end of the nozzle and positioned to fluidly communicate with the interior passage when the valve element is in the open position.
G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
F16L 41/04 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet
F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
Systems and methods for accessing and monitoring a fluid within a pressurized pipe include a nozzle coupled to a section of the pressurized pipe and defining an open proximal end fluidly communicating with the pressurized pipe through an access hole formed in the pressurized pipe, an open distal end, and an interior passage extending from the open proximal end to the open distal end. A cover plate is coupled to the open distal end of the nozzle. A valve element is disposed in the interior passage and movable between an open position, in which the valve element is entirely disposed within the nozzle, and a closed position, in which a proximal section of the valve element is disposed in the pressurized pipe. A sensor port extends through a proximal end of the nozzle and positioned to fluidly communicate with the interior passage when the valve element is in the open position.
A gate valve cartridge, valve housing and installation assembly as well as a completion plug for a line stop fitting and installation assembly. The gate valve cartridge comprises a gate, a paddle, a threaded valve stem and a completion plug. Both completion plugs include an outer circumferential slot for accommodating a circumferential seal and both completion plugs also accommodate a normally-closed check valve. The check valves have an open distal end for receiving a check valve actuator and an open proximal end in communication with fluid disposed proximally of the circumferential seal.
F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
7.
AUTOMATED PRESSURE EQUALIZATION ABOVE AND BELOW COMPLETION PLUG OF GATE VALVE CARTRIDGE OR A COMPLETION PLUG OF A LINE STOP FITTING
A gate valve cartridge, valve housing and installation assembly as well as a completion plug for a line stop fitting and installation assembly. The gate valve cartridge comprises a gate, a paddle, a threaded valve stem and a completion plug. Both completion plugs include an outer circumferential slot for accommodating a circumferential seal and both completion plugs also accommodate a normally- closed check valve. The check valves have an open distal end for receiving a check valve actuator and an open proximal end in communication with fluid disposed proximally of the circumferential seal.
F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
F16K 3/30 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture Détails
F16K 43/00 - Moyens de fermeture auxiliaire des soupapes, pouvant prendre à leur compte, en cas de réparation de la soupape, p. ex. un regarnissage des rondelles, la fonction des moyens normaux de fermetureDispositifs pour le remplacement temporaire des parties de soupapes dans le même but
F16L 47/34 - Branchement en charge, c.-à-d. établissement de dérivations en traversant les parois des tuyaux pendant qu'ils transportent des fluidesLeurs accessoires
F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
8.
EXPANDING GATE VALVA ASSEMBLY WITH PRESSURE EQUALIZATION SYSTEM
A gate valve for a pressurized pipe includes a paddle member with a lower proximal portion and a pair of spaced-apart and leg portions that form an outer edge and an inner edge. A cartridge includes a valve stem channel extending through a distal portion and through a conduit and terminating at a proximal opening in a proximal portion of the cartridge. The proximal portion of the cartridge includes a slot for accommodating the inner edge of the paddle member. In a pre-compression configuration, the inner edge of the paddle member is spaced-apart from the proximal opening of the conduit and in a post-compression configuration, the inner edge of the paddle member engages and seals the proximal opening resulting in a built- in check-valve that is open when the paddle member is in the pre-compression configuration and closed when the paddle member is in the post-compression configuration.
F16K 3/16 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation planesGarnitures d'étanchéité à cet effet avec dispositions particulières pour tenir écartées les faces d'obturation ou pour les presser l'une contre l'autre
F16K 3/314 - Formes ou structures de la partie coulissanteSa fixation sur sa tige
9.
Expanding gate valve assembly with pressure equalization system
A gate valve for a pressurized pipe includes a paddle member with a lower proximal portion and a pair of spaced-apart and leg portions that form an outer edge and an inner edge. A cartridge includes a valve stem channel extending through a distal portion and through a conduit and terminating at a proximal opening in a proximal portion of the cartridge. The proximal portion of the cartridge includes a slot for accommodating the inner edge of the paddle member. In a pre-compression configuration, the inner edge of the paddle member is spaced-apart from the proximal opening of the conduit and in a post-compression configuration, the inner edge of the paddle member engages and seals the proximal opening resulting in a built-in check-valve that is open when the paddle member is in the pre-compression configuration and closed when the paddle member is in the post-compression configuration.
F16K 3/30 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture Détails
F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
F16L 55/124 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches en introduisant dans le tuyau un élément expansible in situ introduits radialement dans le tuyau ou la manche
F16K 3/28 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à corps de tiroir élastique
F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
A core sampling and tapping assembly is disclosed that may be mounted to a cylindrical pipe. The assembly includes a nozzle having an interior portion extending between an open distal end and a proximal end. The proximal end sealed to an upper saddle member and the upper saddle member coupled to a lower saddle member to clamp the pipe in between. The assembly further includes a tapping mandrel including a mandrel plate, the tapping mandrel extending through the interior portion and a core cutter fixedly coupled to the mandrel plate. The assembly further includes a pilot bit coupled to the mandrel plate and disposed within an interior cavity of the core cutter. The tapping mandrel adjacently aligns the core cutter and the pilot bit with an outer surface of the pipe and subsequently rotates the pilot bit and core cutter to collect a core sample from the pipe.
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
F16L 47/34 - Branchement en charge, c.-à-d. établissement de dérivations en traversant les parois des tuyaux pendant qu'ils transportent des fluidesLeurs accessoires
A core sampling and tapping assembly is disclosed that may be mounted to a cylindrical pipe. The assembly includes a nozzle having an interior portion extending between an open distal end and a proximal end. The proximal end sealed to an upper saddle member and the upper saddle member coupled to a lower saddle member to clamp the pipe in between. The assembly further includes a tapping mandrel including a mandrel plate, the tapping mandrel extending through the interior portion and a core cutter fixedly coupled to the mandrel plate. The assembly further includes a pilot bit coupled to the mandrel plate and disposed within an interior cavity of the core cutter. The tapping mandrel adjacently aligns the core cutter and the pilot bit with an outer surface of the pipe and subsequently rotates the pilot bit and core cutter to collect a core sample from the pipe.
F16L 55/00 - Dispositifs ou accessoires à utiliser avec, ou en liaison avec, les tuyaux ou les systèmes de tuyaux
B23G 1/22 - Machines spécialement conçues pour usiner des tuyaux ou des tubes
B23G 1/52 - Équipement ou accessoires spécialement conçus pour les machines ou dispositifs à fileter pour usiner des tuyaux ou des tubes
F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
F16L 47/34 - Branchement en charge, c.-à-d. établissement de dérivations en traversant les parois des tuyaux pendant qu'ils transportent des fluidesLeurs accessoires
F17D 5/00 - Protection ou surveillance des installations
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
This patent document discloses an improved series of nozzles and completion plugs for use in installing linestops in pressurized pipes. The improved nozzles are capable of accommodating two different types of completion plugs, including a threaded completion plug and a push-in type completion plug that is held in place within the nozzle by pins that extend through a flange of the nozzle. Lower edges of the nozzles are designed to facilitate the welding of the nozzle to an upper clamp or upper saddle member. Specifically, the lower or proximal beveled edge includes an inner lip that acts as a dam to prevent seepage of welding material between the proximal edge of the nozzle and the upper saddle member during the welding of the former to the latter.
A gate valve assembly is disclosed that may be installed in a pressurized pipe or conduit. The gate valve assembly includes a nozzle that is connected perpendicularly to the pipe. The nozzle includes a distal end, a proximal end and a through passage extending therebetween. The through passage includes a proximal portion with a circular cross-sectional profile for sealingly engaging a wiper seal disposed on a valve cartridge. The passage also includes a distal portion with a non-circular cross-sectional profile that complements a non-circular cross-sectional profile of the cartridge. The non-circular cross-sectional profiles of the cartridge and passage prevent the cartridge from twisting or rotating within the nozzle or pipe. The proximal end of the nozzle also features an inner lip, which facilitates the welding of the proximal end of the nozzle to an upper saddle member, which is used to clamp the nozzle to the pipe prior to cutting or pressure tapping of the pipe.
(1) Industrial tapping and linestopping equipment, namely, metal manually operated valves and parts thereof for fluid conveying lines; water-pipe valves of metal
(1) Industrial tapping and linestopping equipment, namely, metal manually operated valves and parts thereof for fluid conveying lines; water-pipe valves of metal
(1) Industrial tapping and linestopping equipment, namely, metal manually operated valves and parts thereof for fluid conveying lines; water-pipe valves of metal
A gate valve (82) is disclosed that may be installed in a pressurized pipe (51) or conduit. The gate valve (82) includes a cylindrical gate housing (101) that has a slot (80) through which a rectangular gate (103) slides between an open and closed position. The gate (103) and gate housing (101) provide seals (117) between the gate valve (82) and the housing section (53) that houses the gate housing (101) when the gate valve (82) is in either an open or a closed position. The bottom seal (122) that engages the pressurized pipe (51) may be equipped with stiffening shields (143) for a higher pressure rating. The operating torque to raise and lower the seal assembly (128) has been substantially reduced by the design of the sliding gate (103) within the gate housing (101).
F16K 43/00 - Moyens de fermeture auxiliaire des soupapes, pouvant prendre à leur compte, en cas de réparation de la soupape, p. ex. un regarnissage des rondelles, la fonction des moyens normaux de fermetureDispositifs pour le remplacement temporaire des parties de soupapes dans le même but
F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
(1) Industrial apparatus for tapping and selectively stopping fluid in fluid conveying lines, and metal, manually operated valves, fittings and parts thereof for use in fluid conveying lines.
