A connection system, in particular for a pressure reducer of a diving regulator, the system comprising a connector (1) having a first end (2) adapted to be fastened to a pressure reducer and a second end (2′) adapted to be fastened to a valve of a compressed air cylinder, said connector (1) having an internal passage (4) extending substantially axially between said first and second ends, said internal passage (4) including a filter (5), preferably made of sintered stainless steel, and a retaining member (6a; 6b; 6c; 6c′; 6d; 6e) fastened to said second end (2′) and supporting firstly said filter (5) and secondly a main O-ring (7; 9e), said retaining member (6a; 6b; 6c; 6c′; 6d; 6e) forming an inlet opening, said system including a shutter device comprising a shutter member (9a; 9b; 9c: 9c′; 9d; 9e) that is deformable and/or movable between a shut position in which it shuts said inlet opening, and an open position in which it does not shut said inlet opening, said shutter member (9a; 9b; 9c: 9c′; 9d; 9e) being urged resiliently towards its shut position and being deformed and/or shifted towards its open position by compressed air coming from said compressed air cylinder, said shutter member (9a; 9b; 9c: 9c′; 9d; 9e) being deformed and/or shifted towards its open position in a direction extending substantially transversely relative to the flow direction of the compressed air stream.

The invention relates to a method for cooling a tool in a heat treatment furnace, wherein: the tool is supplied during normal cooling operation with coolant from a coolant reservoir through a supply inlet (1), which coolant is returned into the coolant reservoir from the tool via a return flow (2); the supply inlet (1) is coupled by means of an electric actuator (3) alternatively to the coolant reservoir or to the public water supply and the return flow (2) is coupled by means of a further electric actuator (3) alternatively to the coolant reservoir or to the public waste water system (4); the actuators (3, 3′) are supplied with a feed current during normal cooling operation and held in a first position in which coolant is supplied to the tool through the supply inlet (5) from the coolant reservoir and the coolant is fed back through the return flow (2, 6) into the coolant reservoir; and, upon interruption in the power supply, the actuators (3, 3′) are forced into an emergency position in which cold water is supplied to the tool through the supply inlet (7) from the public water supply and the water is discharged through the return flow (2, 8) into the public waste water system (4).

A self-contained pressure compensation system and a control method thereof are provided, wherein the self-contained pressure compensation system comprises an oil supply device, a pressure compensation device, a power unit associated with the pressure compensation device, and a switch control device, the pressure compensation device supplies oil to the power unit and detects a change in a chamber pressure of itself in real time, the switch control device triggers the oil supply device to supply oil to the pressure compensation device if the chamber pressure is less than a predetermined first threshold and triggers the oil supply device to stop supplying oil to the pressure compensation device if the chamber pressure is greater than a predetermined second threshold. The invention can detect a chamber pressure of the pressure compensation device in real-time and can achieve automatic oil refilling, and can provide pressure compensation for the power unit effectively.

Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

A method for operating a valve of a pressure vessel system includes determining an actual pressure difference between an inlet pressure at an inlet of the valve and an outlet pressure at an outlet of the valve, and enabling the valve if the actual pressure difference is lower than or equal to a maximum admissible pressure difference of the valve.

A refrigerant leak management system includes a controller is configured to receive a signal indicative of a refrigerant pressure within a refrigerant circuit and determine whether the refrigerant pressure is indicative of a refrigerant leak in the refrigerant circuit. In response to determining that the refrigerant pressure is indicative of the refrigerant leak, the controller is configured to activate a fan configured to motivate air proximate the refrigerant circuit.

A floodwater redistribution assembly for redirecting flood waters to a predetermined location for irrigation and municipal water service includes a subterranean vault that is positioned adjacent to a body of water known for periodic flooding. An inlet pipe is integrated into the subterranean vault to direct the water from the body of water into the subterranean vault. An outlet pipe is integrated into the subterranean vault to direct the water outwardly to a predetermined location for the purposes of irrigation and municipal water service. A ball valve is positioned within the subterranean vault to facilitate the water to flow into the outlet pipe. A ball valve control unit is coupled to the ball valve. The ball valve control unit is in remote communication with a remote control source and the ball valve control unit actuates the ball valve between an open position and a closed position.

A back pressure regulator (“BPR”) includes a pressure housing that at least partially defines a flow chamber that the liquid flows through and the BPR has an adjustable restriction that varies with the flow rate to maintain an upstream liquid pressure. The pressure housing is contoured to distribute the liquid flow to provide radial flow into the adjustable restriction from circumferentially about the adjustable restriction. The pressure housing includes ramped and curved side passages that guide the flow and ridges that divide the flow and prevent internal collisions between the flow. A flow deflector extends into the chamber outlet to prevent the radial flows through the annular restriction from colliding. The flow deflector redirects the flows to smoothly recombine in the chamber outlet.

A communication module may be used in an information handling system comprising an air mover configured to drive a flow of air and a processing component communicatively coupled to the air mover for controlling operation of the air mover via a first wire configured to communicate air mover speed commands from the processing component to the air mover for controlling a speed of the air mover and a second wire configured to communicate tachometer information from the air mover to the processing component. The communication module may include a connector other than an air mover connector configured to couple the air mover to the first and second wire and logic configured to monitor for an escape sequence communicated via first wire from the processing component to enter a command mode and responsive to detecting the escape sequence, communicating information regarding the air mover to the processing component via second wire.

Disclosed is a flow control system for digital and mechanical redundant pressure compensation. On the basis of an original pressure compensation valve, two-position three-way electromagnetic valves are added to control the opening and closing of pressure compensation valves. Furthermore, pressure sensors and a controller are added, so that the system has a digital pressure compensation function. When the pressure sensor breaks down, the flow control system is switched to a mechanical compensation mode to achieve mechanical pressure compensation, the problem that system flow cannot be controlled when the sensor breaks down is solved, and the purpose of redundancy control is achieved. Moreover, the pressure compensation valve in the loop where the highest load is located can be controlled to be completely opened through the two-position three-way electromagnetic valve to reduce pressure loss of the valve port, and the pressure is not affected by load fluctuation.