The present invention relates to a multistage fiber filtering apparatus capable of selectively filtering depending on turbidity of raw water, in which a first filtration mode where the raw water passes through a fiber ball medium, a second filtration mode where the raw water passes through a fiber yarn medium, or a third filtration mode where the raw water passes through both of the fiber yarn medium and the fiber ball medium may be selectively operated.

The present invention relates to a multistage fiber filtering apparatus capable of selectively filtering depending on turbidity of raw water, in which a first filtration mode where the raw water passes through a fiber ball medium, a second filtration mode where the raw water passes through a fiber yarn medium, or a third filtration mode where the raw water passes through both of the fiber yarn medium and the fiber ball medium may be selectively operated.

There is disclosed a tool for filtering a lubricant to meet a target ISO cleanliness code. The tool includes a skid-mounted integrated filtration system having a pump that circulates a flow of lubricant from an inlet port, through a heater, through a series of specifically sized filters, and past a digital particle counter. The filtration system also includes a user interface and a programmable logic controller (PLC) configured to track outputs from the pump, the oil heater, and the particle counter to monitor a cleanliness of the circulating lubricant. The filtration system also includes a filtration operations server in communication with the PLC and configured to implement a tracking and monitoring software application enabling control of the filtration system from the system itself or remotely through one or more remote user terminals such as a smartphone, a laptop or tablet computer, and the like. Other embodiments are disclosed.

A system. The system includes a reuseable oil filter, a first port, a second port and a valve assembly. The reuseable oil filter has an inlet and an outlet, and includes a housing and a filter element positioned within the housing. The valve assembly is in selective fluid communication with the reuseable oil filter, the first port and the second port.

A filtration system includes a particle counter configured to detect particles in a volume of fluid. The filtration system includes a control valve in fluid communication with the particle counter. The filtration system includes a controller in communication with the particle counter and the control valve. The controller may be configured to determine whether the detected particles exceed a predetermined threshold. The controller may be configured to command the control valve. The filtration system includes a filter in fluid communication with the control valve.

Provided are methods for monitoring a filtration and washing operation on a solid-state bulk material in a filter apparatus for cake filtration. The methods include separating a solid-state bulk material in a suspension medium using a filter element for the cake filtration, leading off the suspension medium in the form of a filtrate stream into a filtrate outlet, measuring at least one parameter value of the filtrate stream over a period of time during the filtration and washing operation, and conducting a change analysis of the at least one parameter value over the period of the filtration and washing operation to achieve the end of the filtration and washing operation and/or the effectiveness of the filtration and washing operation.

A filter assembly including an RFID tag, for use in monitoring fluid processing, as well as a system and a method for monitoring fluid processing, and a filter for use in the filter assembly, are disclosed.

A pool cleaner that may include a drive mechanism for moving the pool cleaner; a housing that has a first fluid opening and a second fluid opening; a filtering unit that comprises a filter enclosure and a filtering element; a fluid flow mechanism for inducing a flow of fluid through the filtering element in a first direction during a filtering process and for inducing a flow of the fluid through the filtering element at a substantially opposite direction during a backwash process; and a debris trap that is configured to receive debris from the filtering element during the backwash process and to substantially prevent the debris from exiting the debris trap during the filtering process.

A filter assembly including an RFID tag, for use in monitoring fluid processing, as well as a system and a method for monitoring fluid processing, and a filter for use in the filter assembly, are disclosed.

Fluid filtration devices and methods of filtering fluids are described. The devices generally include a housing and an annular filter assembly, wherein the filter assembly is located inside the housing and comprises a filter material. The filter material may be, for example, an electroformed nickel screen having a smooth working surface and expanding pores. A rotating cleaning assembly comprising a distributor and wipers may be located inside the filter assembly.