An airlock system that includes a plurality of adjacent chambers successively arranged along a guide path. Predetermined pressures are produced in each chamber so that the predetermined pressure in each chamber is at a pressure different from the predetermined pressure produced in an adjacent chamber. Gate valves are positioned to separate adjacent chambers in order to maintain a pressure differential between the adjacent chambers.

An airlock system that includes a plurality of adjacent chambers successively arranged along a guide path. Predetermined pressures are produced in each chamber so that the predetermined pressure in each chamber is at a pressure different from the predetermined pressure produced in an adjacent chamber. Gate valves are positioned to separate adjacent chambers in order to maintain a pressure differential between the adjacent chambers.

A system for stopping flow in a pipe with a plug positioned in the pipe to allow for repairs of the pipe. The plug comprises a body with an inflatable or compressible member, and a cap and connector valve on the body. An inflation line with a coupling connects to the valve for blocking off and sealing a damaged area of the pipe. An inflation line is used to deposit and retrieve the plug within the pipe before and after a repair is made.

A system for stopping flow in a pipe with a plug positioned in the pipe to allow for repairs of the pipe. The plug comprises a body with an inflatable or compressible member, and a cap and connector valve on the body. An inflation line with a coupling connects to the valve for blocking off and sealing a damaged area of the pipe. An inflation line is used to deposit and retrieve the plug within the pipe before and after a repair is made.

There is disclosed a safety system for stoppers and bungs. In particular, there is disclosed a stopper safety system for stoppers (50) for pipes (60). The stopper safety system includes a housing (30) configured for attachment to a stopper. The housing is adapted to hold a pressure sensor and a transmitter. The transmitter is positioned in the housing such that the transmitter abuts a first end of the stopper. The stopper safety system also includes a receiver (20) and a monitor (10). The transmitter is configured to wirelessly transmit a measured pressure from the pressure sensor to the receiver (20) and the monitor (10) and the monitor is configured to display the measured pressure.

There is disclosed a safety system for stoppers and bungs. In particular, there is disclosed a stopper safety system for stoppers (50) for pipes (60). The stopper safety system includes a housing (30) configured for attachment to a stopper. The housing is adapted to hold a pressure sensor and a transmitter. The transmitter is positioned in the housing such that the transmitter abuts a first end of the stopper. The stopper safety system also includes a receiver (20) and a monitor (10). The transmitter is configured to wirelessly transmit a measured pressure from the pressure sensor to the receiver (20) and the monitor (10) and the monitor is configured to display the measured pressure.

Disclosed herein are embodiments of a valve assembly for preventing dead leg spaces in a container or tubing, the embodiments including a three-way valve system for controlling back-pressure in a fluid generating device, such as a single-use high pressure bioreactor. Also disclosed is a pressurized reactor system for bioprocessing, comprising a single-use container including a flexible wall or a semi-rigid wall.

Disclosed herein are embodiments of a valve assembly for preventing dead leg spaces in a container or tubing, the embodiments including a three-way valve system for controlling back-pressure in a fluid generating device, such as a single-use high pressure bioreactor. Also disclosed is a pressurized reactor system for bioprocessing, comprising a single-use container including a flexible wall or a semi-rigid wall.

An apparatus and associated method, for controlling signal passage, includes a first passageway for a first fluid, a second passageway for a second fluid, and an interposed chamber. A first, movable diaphragm at a first chamber junction and a second, movable diaphragm at a second chamber junction, with a third fluid bound there between and interposed between the first and second passageways. A device varies a volume of the third fluid bound between the diaphragms and thus moves the diaphragms. A movable member and a reservoir of the device are configured such that the movable member is sufficiently movable to increase the volume of the reservoir to remove a sufficient portion of the third fluid bound between the first and second diaphragms from the chamber to cause the first and second diaphragms to be pressed against the first and second walls, respectively.

An apparatus and associated method, for controlling signal passage, includes a first passageway for a first fluid, a second passageway for a second fluid, and an interposed chamber. A first, movable diaphragm at a first chamber junction and a second, movable diaphragm at a second chamber junction, with a third fluid bound there between and interposed between the first and second passageways. A device varies a volume of the third fluid bound between the diaphragms and thus moves the diaphragms. A movable member and a reservoir of the device are configured such that the movable member is sufficiently movable to increase the volume of the reservoir to remove a sufficient portion of the third fluid bound between the first and second diaphragms from the chamber to cause the first and second diaphragms to be pressed against the first and second walls, respectively.