A method for use with a pumping system includes receiving a pump command signal for starting a pump; initiating a valve command signal for opening a valve, in response to the receiving the pump command signal; receiving a valve sensor signal indicating that the valve is open; and initiating a pump start command signal, in response to the received valve sensor signal.

A turbo pump acts on a liquid, and an apparatus and a method suppresses or alleviates a cavitation surge which is a unique phenomenon occurring in a turbo pump for a liquid. A method of operating a turbo pump while suppressing cavitation, includes: measuring a flow rate upstream of the turbo pump and a flow rate downstream of the turbo pump for delivering a liquid and comparing the flow rates with each other; if the upstream flow rate is lower than the downstream flow rate, reducing a pressure in a pump suction section to increase an upstream flow velocity while reducing a pressure in a pump discharge section to lower a downstream flow velocity; and if the downstream flow rate is lower than the upstream flow rate, increasing the pressure in the pump discharge section to increase the downstream flow velocity while increasing the pressure in the pump suction section.

A dual pump unit having a pair of pumps that provide parallel hydraulic paths, and are configured to operate concurrently in opposite rotational directions. The dual pump unit has a sealed casing which includes a suction flange, two volutes in hydraulically parallel configuration, and a discharge flange. The pair of pumps are located within a respective volute of the casing and, in an example, are radially inline and horizontally inline. The casing may include a flattened bottom. Each pump may include a touchscreen for configuration of the respective pump. The pumps are controllable to circulate a circulating medium to collectively provide output to source a load.

A method for controlling a VG mechanism for a compressor employs a predefined VG setpoint map comprising optimum VG setpoints for the VG mechanism based on at least one predefined optimization criterion. The VG mechanism has at least three different setpoints ranging between a minimum flow area setpoint and a maximum flow area setpoint. A location of an operating point of the compressor on its compressor map is determined. Based on the location of the operating point, the VG setpoint map is consulted and an optimum VG setpoint is determined. A predictive scheme can be included for accounting for time lag of the VG mechanism's response.

The invention relates to a method for providing at least one piece of information about a hydraulic apparatus (1), wherein the following stages are performed: Performing a detection (201) of detection values (210) at the apparatus (1), wherein the detection values (210) are specific for measurements at different measuring points and at different apparatus components (120) of the apparatus (1), Performing a transmission (202) of the detected detection values (210) to a processing component (300), Providing an apparatus information (211) about a specification of the apparatus (1) and/or the measurements, wherein providing the apparatus information (211) is performed at the processing component (300) to provide the transmitted detection values (210) with the apparatus information (211).

The invention relates to a method (100) for processing operating data of a flow arrangement (2) of an apparatus (3) comprising a first conveying line (10) having a first flow resistor (11) and a second conveying line (20) having a second flow resistor (21) and being connected in parallel to the first conveying line (10) for a fluid flow (40) in the flow arrangement (2). Furthermore, the invention relates to a computer program product, and to a flow system (1).

A compressed air system may comprise an air compressor configured to generate compressed air, a reservoir configured to store the compressed air, a reservoir pressure sensor configured to monitor an actual reservoir pressure of the compressed air stored in the reservoir, an outlet valve configured to regulate a flow of the compressed air out of the reservoir, and an outlet electronic actuator configured to adjust a position of the outlet valve. The compressed air system may further comprise an electronic control module (ECM) configured to transmit a command to the outlet electronic actuator to cause the outlet electronic actuator to open the outlet valve when the actual reservoir pressure is above a target reservoir pressure, and transmit a command to the electronic actuator to cause the electronic actuator to close the outlet valve when the actual reservoir pressure is below the target reservoir pressure.

A turbopump system includes a pump portion including a housing having a pressure release passageway disposed therein. The pump portion is disposed between a high pressure side and a low pressure side of a working fluid circuit. A drive turbine is coupled to the pump portion and configured to drive the pump portion to enable the pump portion to circulate a working fluid through the working fluid circuit. A pressure release valve is fluidly coupled to the pressure release passageway and configured to be positioned in an opened position to enable pressure to be released through the pressure release passageway and in a closed position to disable pressure from being released through the pressure release passageway.

A dual pump unit having a pair of pumps that provide parallel hydraulic paths, and are configured to operate concurrently in opposite rotational directions. The dual pump unit has a sealed casing which includes a suction flange, two volutes in hydraulically parallel configuration, and a discharge flange. The pair of pumps are located within a respective volute of the casing and, in an example, are radially inline and horizontally inline. The casing may include a flattened bottom. Each pump may include a touchscreen for configuration of the respective pump. The pumps are controllable to circulate a circulating medium to collectively provide output to source a load.

A gas seal column apparatus includes a vertically-oriented column, a pump, an inlet pipe, a an outlet pipe, and a drive shaft driven by any type of motor. The pump and the gas seal column comprise a vertically-oriented pump system. The inlet pipe receives pressurized seal gas for introducing the seal gas into the pump system. The outlet pipe enables the seal gas to exit the pump system. The drive shaft is encased by the gas seal column between the pump drive motor and the pump to couple the pump drive motor to the pump.