A drainage assembly (68) includes a first segment (70A) with a first inner tube (76A) defining a first inner tube passage (78A), a first outer tube (72A) concentrically disposed around the first inner tube (76A) and defining a first outer tube passage (74A), and a first fitting (80A) disposed on an end of the first segment (70A). The first fitting (80A) has a first inner passage (82A) in fluid communication with the first inner tube passage (78A) and a first outer passage (84A) in fluid communication with the first outer tube passage (74A). A plate (88) is positioned adjacent the first fitting (80A). The plate (88) has a second inner passage (90) in fluid communication with the first inner passage (82A) on one side, and a second outer passage (92) in fluid communication with the first outer passage (84A) on the one side. Also included is a drainage line (104) in fluid communication with the first outer tube passage (74A).

A pipe restraint assembly includes a restraint body configured to be removably attached to a portion of pipe. The portion of pipe is associated with a postulated pipe failure associated with a release of high pressure fluid. A plurality of apertures penetrate through the restraint body and are positioned proximate to a location of the postulated pipe failure. The apertures are configured to provide a number of passageways for the fluid to exit from the location of the postulated pipe failure and to be released outside of the restraint body. One or more restraint devices maintain the position of the apertures relative to the location of the postulated pipe failure.

The racking arm includes a housing affixable to a tank side wall. A racking shaft extends through the housing with an inlet pipe coupled to an inside end of the racking shaft, with an entrance offset from a rotational axis of the racking shaft. A control arm is affixed to the racking shaft and can be rotated to cause rotation of the racking shaft relative to the housing and to change the entrance to different elevations within the tank. A clearance groove surrounds the inside end of the racking shaft to facilitate cleaning of the inside end of the racking shaft. The arm can interface with an indexing plate to hold the racking shaft fixed with the arm indicating by its position the orientation of the entrance. At least one leak detection port extends through the housing to indicate whether fluid is leaking between the racking shaft and housing.

Implementations of a gas leak indication system may include a ring including a flange extending from an interior surface of the ring, the flange including two seal channels on either side of the flange, and the ring including a flow opening extending into a projection extending from an exterior surface of the ring; an extender threadedly coupled into a side opening in the projection, the extender including a flow opening therethrough; an indicator threadedly coupled onto the extender, the indicator including a flow channel extending therethrough; and a cap coupled over an end of the indicator by a friction fit.

Implementations of a gas leak indication system may include a ring including a flange extending from an interior surface of the ring, the flange including two seal channels on either side of the flange, and the ring including a flow opening extending into a projection extending from an exterior surface of the ring; an extender threadedly coupled into a side opening in the projection, the extender including a flow opening therethrough; an indicator threadedly coupled onto the extender, the indicator including a flow channel extending therethrough; and a cap coupled over an end of the indicator by a friction fit.

Implementations of a gas leak indication system may include a ring including a flange extending from an interior surface of the ring, the flange including two seal channels on either side of the flange, and the ring including a flow opening extending into a projection extending from an exterior surface of the ring; an extender threadedly coupled into a side opening in the projection, the extender including a flow opening therethrough; an indicator threadedly coupled onto the extender, the indicator including a flow channel extending therethrough; and a cap coupled over an end of the indicator by a friction fit.

A coupling system (100) is disclosed. The system (100) includes an insert (102), an upper part (106) and a flange (104). The insert (102) includes a plurality of pillar devices and has a ring comprised of plastic material. The upper part has a circular shaped opening. The flange has a washer or elastomer seal element (110). Pilot (114 and 116) are a molded plastic that encase the insert ring (102). The washer element is adjacent to and concentric with the circular shaped opening and is comprised of a rubber material. The pillar devices are configured to mitigate force from the upper part to the washer element of the flange. The insert or ring (102) can have an L-shaped profile (502).

One or more embodiments relate to a method and device able to maintain the integrity of pipelines, improving sealing and safety. One or more embodiments relate to the method and device that monitors leaked hazardous substances in the event of a leak. One or more embodiments relate to a pipeline connection seal device including a first pipe connector; a second pipe connector; and a vacuum-pumped interspace defined by at least the first pipe connector and the second pipe connector. The vacuum-pumped interspace reduces the pressure gradient across the pipeline connection seal device and monitors leaking hazardous substances and prevents them from escaping the seal device and going ambient.

A bolted flange joint sealing and monitoring apparatus is disclosed for a bolted flange joint having two flanges abutting one another at an interface, the two flanges having holes therein that are aligned and receive bolts, and providing an inner surface and an outer surface. The sealing and monitoring apparatus provides a seal on the inner surface of the interface, and includes: a first, frangible sealant applied to the interface on the inner surface; a first layer of sheet material overlying the first sealant and adapted to provide an air space; a second layer of sheet material overlying the first layer of sheet material; a second sealant overlying the second layer such that the air space is air tight; a vacuum source in fluid communication with the air space; and a vacuum monitor to monitor the status of a vacuum created in the air space.

A method for producing a connection, between attachment ends of two components that are to be connected, by means of two connection flanges, each of which is provided at one attachment end, wherein a sealable cavity is formed between those sides of the two connection flanges that are to face each other, wherein a closable and, if necessary, openable channel is provided between the cavity and a surrounding environment, and a negative pressure is generated in the cavity and the channel is closed, wherein a trigger mechanism is provided which is configured to open the channel in an automated manner upon the occurrence of a trigger criterion, and also to a corresponding connection device and to the use thereof.