Specialized arch gaskets for dust collection systems are provided that reinforce certain connections points within the system. More particularly, the arch gaskets may better reinforce the pressure conditions of the dust collection system and enhance the sanitary conditions within the system. The large side engagement formed by the legs of the arch gasket is able to provide a desirable amount of adhesive surface to connect to the desired component in the system (e.g., a door), which may allow a user to more easily install the arch gasket into the system at its intended location.

Specialized dust collection systems are provided that comprise a pulsed air system; at least one diaphragm valve assembly, which functions as the pulsed air valve; and a controller for controlling the diaphragm valve assembly and pulsed distribution of the pressurized air. The diaphragm valve assembly may be controlled by the controller and is operable to selectively deliver pressurized air to the air distribution assembly in short pulses or bursts. The disclosed diaphragm valve assembly can be utilized to improve the functionality of the pulsed air system and the dust collection system.

A pressure control device capable of preventing a body and a filter unit which are assembled from being disassembled unintentionally is provided. A pressure control device includes: a body, which has a flow path that includes a groove and a widening portion that is connected to the groove and has a width larger than the width of the groove to a bottom portion of the groove; and a filter unit which is accommodated along a depth direction of the widening portion and captures foreign matter mixed in a fluid passing through the flow path. The filter unit has a detachment prevention portion which prevents a detachment form the widening portion.

A precision additive dosing device comprising a liquid additive tank, dosing pump, filter, electric actuator, and pump control unit. Upon completion of fueling, the control unit is input with the corresponding volume of fuel just delivered. The pump starts until a time is reached that achieves the correct blend of additive for the fuel. The dosing pump delivers a constant volume of additive with time being the only variable to achieve the correct ratio of additive to fuel. Operation of the pump may be delayed or the time of pump operation may be increased during low ambient temperatures by the pump control circuit. Additionally, a heater may be used to heat the additive in similarly low temperatures.

Embodiments of the present invention include systems and methods for providing a filter that is sealed solely with mechanical forces. The filter may be a high pressure filter used in semiconductor manufacturing. In various embodiments, the filter includes a housing with an angled end and a filter element disposed inside the housing. The filter further includes a fluid fitting with an angled side. The angled side of the fitting has a different angle than the angled end of the housing. The filter also includes a compression collar fitted over the housing to compress the housing and the fitting. The result is a filter that may be used as a high-pressure fluid restrictor. The filter uses only mechanical seals to provide leak-proof highly filtered fluids in which impurities, contaminants and particulates are removed.

Vehicles or machinery equipped with full flow spin-on, canister or reusable filters can benefit by including advanced or bypass grade parallel filtration. Incorporating advanced filtration is generally difficult due to impractical lubrication system access, cramped engine bays, and some installation solutions require engine modifications and hardware. An apparatus of the present invention provides advanced filtration when used inside well-known manufactured forms of spin-on, cartridge, or reusable filters. The unit installs as a complete unit, without modifications, or external hardware to any engine at the spin-on filter point of attachment, inside the canister housing, or inside a reusable filter form. The apparatus uses the structures of the normally provided filter to enable a bolt-on installation. The apparatus increases filtration efficiency, capacity, easier maintenance, while providing environmental benefits.

A plate for a filter press, a filter press, the use of such a filter press as well as a method of cleaning and sterilization of such a filter press. The plate for a filter press has a base body, consisting of a first material with a hardness H.sub.1 and having an outer circumferential surface, and a frame arranged on the outer circumferential surface, consisting of a second material with a hardness H.sub.2, where H.sub.2<H.sub.1, and wherein the frame has on at least one side surface at least one encircling seal protruding relative to the side surface.

A fluid filtration system is provided. The system includes a filter head and a filter cartridge removably coupled to the filter head. The filter cartridge includes a shell housing defining a first housing end, a second housing end, and a housing sidewall extending between the first housing end and the second housing end. The filter cartridge further includes a filter element received within the shell housing and removably coupled to the shell housing. The filter element includes a media pack and an endplate. The media pack is configured to filter matter from a fluid flowing therethrough. The endplate is coupled to an end of the media pack. The endplate includes an expansible scaling member extending axially away from the endplate in a direction opposite to the media pack and having a compliant portion. The expansible sealing member is configured to expand in diameter when the expansible sealing member engages the shell housing.

A fluid filter system is disclosed for filtering heavy metals. The filter system including a filter located outside of an appliance for removing heavy metals and a filter within the appliance that is downstream from filter from the having a filter for removing the heavy metals. The filter cartridge within the appliance holding a valve open that is on the filter head in the appliance.

A process for the separation of the components of a solid/liquid mixture. The process Includes the use of a rotary pressure filter apparatus having improved capacity.