A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

The present disclosure relates to methods and systems for water damage protection and reporting associated with leak detection, usage monitoring, predictive maintenance and analytics related to plumbing infrastructure in free standing locations, buildings, homes, venues, manufacturing facilities, public infrastructure, restaurants and malls.

A pressure-adjustable auxiliary control system for high-pressure gas sealing detection includes: a high-pressure chamber environment monitoring unit configured to construct high-pressure test gas sealing environment and to test sealing performance of a sealing member; a first gas pipeline divided into two branches, of which one branch is connected to the high-pressure chamber environment monitoring unit as a first gas replacement path; a second gas pipeline which is connected to a test gas pressurization path together with the other branch of the first gas pipeline, where a first booster pump processing unit and a second booster pump processing unit are sequentially arranged in the test gas pressurization path for pressurizing the test gas, and are connected to the high-pressure chamber environment monitoring unit; a system air control module configured for control of respective air control valves; and a booster pump air control module and a driving air source preprocessing unit.

Valve assemblies may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly. The valve assembly may include a valve body having a fluid path, first and second valves situated in the fluid path, first and second valve actuators, and a pressure sensor in fluid communication with an intermediate volume of the fluid path between the first and second valves. A valve controller may monitor a measure related to a pressure in the intermediate volume. The valve controller may then output a signal if the measure related to the pressure in the intermediate volume meets and/or exceeds a threshold value, where the threshold value is determined based on a measure related to an initial pressure in the intermediate volume and a known test duration.

The invention relates to energy saving in vacuum systems by means of a method and a controller enabling to consider the fluctuation in system-pressure of a system by determining a maximum system-pressure S2H and a minimum system-pressure S2h for each working cycle W.sub.C based on a determined target system-pressure p.sub.n.sup.− and a pre-set system-pressure p.sub.0.sup.− for the current working cycle W.sub.Cn (n=1, 2, 3, . . . ). The method is especially adapted to fluctuations in system-pressure level of a vacuum system comprising a vacuum gripper tool.

In accordance with the resent invention, there is provided a fugitive emission detection system for use in conjunction with a valve having a packing deign which includes a primary packing and a secondary packing. The valve further includes a leak port which is disposed within the valve bonnet between the primary and secondary packings. The detection system is operative to maintain the leak port in a normally open state. As a result, any fluid leakage past the primary packing is normally sent to the detection system, as opposed to being applied to and thus pressurizing the secondary packing. In the event of that a prescribed level of fluid leakage beyond the primary packing is detected, the leak port will be closed. The closure of the leak port facilitates the pressurization of the secondary packing.

A system and method for cleaning and inspecting ring frames is disclosed here. In one embodiment, a vacuum valve comprising at least one sealing O-ring; and a pressure monitoring tape on a mating surface on a vacuum processing chamber, wherein the pressure monitoring tape is configured to perform a pressure profile mapping between the mating surface on the vacuum processing chamber and a surface of the at least one sealing O-ring on the vacuum valve to determine a closing condition of the vacuum valve.

A pressure reducer includes a housing, defining upstream and downstream pressure chambers. A valve is positioned in the housing and includes a diaphragm acting on a valve tappet. The valve includes a valve body fastened to the valve tappet and cooperating with a sealing element. The valve body has a cylindrical, hollow-cylindrical, or conical contour and forms a sealing surface effective in the radial direction. The sealing surface is interrupted at at least one circumferential position by a flow channel, such that, depending on a pressure drop in the downstream pressure chamber, either the sealing element lies against the sealing surface and completely closes a flow region between the sealing element and the sealing surface or the sealing element is removed from the sealing surface and completely opens the flow region or the sealing element lies against the sealing surface and partly opens the flow region exclusively by the respective flow channel.

A leak detection system for a building includes a pressure regulating valve (PRV) having a PRV inlet and a PRV outlet. The PRV is operative during a flow of water through the PRV, and a PRV pressure at a lockup pressure during no water flow through the PRV. An outlet pressure sensor is fluidly coupled to the PRV outlet to measure a PRV outlet pressure. A processor is operatively coupled to the outlet pressure sensor. The processor is configured to run a pressure monitoring process to detect changes in pressure at the PRV outlet when the PRV pressure falls below the lockup pressure while remaining above a setpoint pressure to give an indicia of a fixture leak. A method to give an indicia of a fixture leak is also described.

A leakage detection device for detecting water leakage in a water pipe of a water system after a stop valve of the water system is closed. The leakage detection device may be part of a stop valve, and may include an interior chamber connectable to the water pipe in such a way so as to receive a stagnation volume of the water when the water flow through the water pipe is stopped by the stop valve. An actuation element provides a force acting on a diaphragm or a piston in the direction of the first interior chamber and against or into the stagnation volume of water. If water leakage is present in the water pipe, the diaphragm or piston will move under the applied force to compensate for the leakage in the water pipe. A sensor unit may detect water leakage in the water pipe based on the movement.