In some embodiments, a system for pre-wetting a filter includes a filter, a piping system, a first gas, a second gas, a first buffer tank, and a second buffer tank. The first gas drives the solvent to clean the filter. The two buffer tanks store the solvent discharged from the filter. The second gas selectively drives the solvent in the first buffer tank to return to the filter and then to be discharged into the second buffer tank. Alternatively, the second gas selectively drives the solvent in the second buffer tank to return to the filter and then to be discharged into the first buffer tank.

The present disclosure provides a filter device and a photoresist coating system, and the filter device includes: a liquid storage tank, configured to hold photoresist to be filtered; a stirring structure, including a stirring tank and a stirring assembly at least partially received in the stirring tank; a first pipeline, one end of the first pipeline communicates with the liquid storage tank, and the other end of the first pipeline communicates with the stirring tank; a first filter assembly, provided on the first pipeline and located between the liquid storage tank and the stirring tank; a first pressure detection assembly, provided on the first pipeline and configured to detect a pressure of the photoresist in the first pipeline; and a second pipeline, one end of the second pipeline communicates with the stirring tank, and the other end of the second pipeline communicates with the coating device.

An automated single-use filtration device, in particular for large-volume filtration processes, comprises an unfiltrate inlet, one or more filter elements, a filtrate outlet and sensors for detecting specific process parameters and regulating mechanisms for adjusting specific process parameters. The sensors and regulating mechanisms are connected to an external monitoring and control system, which is adapted for evaluating and processing sensor data and for piloting the regulating mechanisms based on one or more control algorithms.

A water drain valve system structured to drain water from a fuel-water separator. The system includes a collection vessel structured to temporarily store water, a liquid level sensor structured to monitor a level of the temporarily stored water, a drainage port extending radially from the collection vessel and having a port inlet and a port outlet, and a valve assembly. The port inlet receives water to be drained from the collection vessel, the water flowing through the drainage port and exiting through the port outlet. The valve assembly is movable between a closed position in which the port outlet is closed, and an open position, in which the port outlet is open, to selectively allow water to be drained from the collection vessel. The valve assembly includes a solenoid coupled to a seal member, the seal member closing the port outlet in the closed position of the valve assembly.

An energy-storage arrangement for, e.g., an electric or hybrid vehicle includes an energy-storage device including energy-storage cells arranged in a housing. The housing includes an inlet and an outlet for a temperature-control fluid, that may provide for direct temperature control of the energy-storage cells in the housing. The energy-storage arrangement further includes a temperature-control-fluid circuit, in which the housing, a pump for conveying the temperature-control fluid, and a heat-transfer device are arranged. A water-separator for separating or discharging water from the temperature-control fluid may be provided in the temperature-control-fluid circuit.

A fuel water separator filter is configured as a filter-in-filter construction with multiple water separating layers to separate water from the fuel. The fuel water separator filter is configured for use on a suction side of a fuel pump, and includes a neck with a radially outward facing seal that in use seals with the filter housing. The filter housing is formed with an isolated water sump that in use is isolated from water that is stripped from the fuel by the first stage of the outer filter.

A water separating screen for a filter element in a liquid filter, the water separating screen including: a screen fabric having end faces; and a fabric carrier; a screen fabric arranged on the fabric carrier and encircling a longitudinal axis, the screen fabric having axial end faces, the longitudinal axis defining an axial direction; wherein the fabric carrier in an area between the end faces exclusively has longitudinal struts, which at least substantially extend in the direction of the longitudinal axis and which are elastic in a radial direction.

The embodiments of the disclosure provide a biological filtration system and a controlling method for the biological filtration system. The biological filtration system for filtering a solution in a bioreactor, comprises: a filter device having a top end and a bottom end, one of the top end and the bottom end being in fluid communication with the bioreactor for filtering the solution in the bioreactor; a liquid chamber in fluid communication with the other one of the top end and the bottom end for storing a solution in the filter device; a positive pressure pump, in fluid communication with the liquid chamber, for driving a solution to flow from the liquid chamber to the bioreactor; and a negative pressure pump, in fluid communication with the liquid chamber, for driving a solution to flow from the bioreactor to the liquid chamber.

A filtering device and a filtering method are provided. The filtering device includes a bubble filtering system. The bubble filtering system at least includes a first bubble filtering system and a second bubble filtering system. The first bubble filtering system configured for performing a first bubble filtration in the solution. The second bubble filtering system configured for performing a second bubble filtration in the solution. Filter fineness of the second bubble filtering system is higher than filter fineness of the first bubble filtering system.

An air filter for a ventilation system of a motor vehicle may include a plate-shaped filter body of a folded filter material and at least one sealing strip secured to a lateral edge of the filter body. Adjacent folds of the filter body may be connected to one another via a seam, may follow one another in a longitudinal filter direction, and may extend in a transverse filter direction. The at least one sealing strip may have at least one removal opening penetrating the at least one sealing strip. At least one removal nozzle for removing air flowing through the air filter may be securable to the at least one removal opening.