A valve assembly is provided, the assembly comprising a valve housing; an inlet for fluid entering the valve housing; an outlet for fluid leaving the valve housing; a flow control assembly disposed within the valve housing between the inlet and the outlet, whereby fluid entering the valve housing is caused to flow through the flow control assembly, the flow control assembly comprising a cage having apertures therethrough to provide passage for fluid passing from the inlet to the outlet, the cage having an outlet end, in use fluid flowing within the cage in a downstream direction towards the outlet; a closure assembly moveable with respect to the cage to open or close each of the apertures through the cage, to thereby control the flow of fluid through the cage; wherein the apertures in the cage extend through the cage at a first angle to the radial direction of the cage and at a second angle to the radial direction of the cage, such that, in use, fluid entering the cage through each aperture is directed into the cage at the first angle to the radial direction so as to flow around the interior of the cage and at the second angle to the radial direction of the cage so as to flow in the downstream direction towards the outlet end of the cage. A cage assembly is also provided. The valve assembly is of particular use in a wellhead assembly.

A valve assembly is provided, the assembly comprising a valve housing; an inlet for fluid entering the valve housing; an outlet for fluid leaving the valve housing; a flow control assembly disposed within the valve housing between the inlet and the outlet, whereby fluid entering the valve housing is caused to flow through the flow control assembly, the flow control assembly comprising a cage having apertures therethrough to provide passage for fluid passing from the inlet to the outlet, the cage having an outlet end, in use fluid flowing within the cage in a downstream direction towards the outlet; a closure assembly moveable with respect to the cage to open or close each of the apertures through the cage, to thereby control the flow of fluid through the cage; wherein the apertures in the cage extend through the cage at a first angle to the radial direction of the cage and at a second angle to the radial direction of the cage, such that, in use, fluid entering the cage through each aperture is directed into the cage at the first angle to the radial direction so as to flow around the interior of the cage and at the second angle to the radial direction of the cage so as to flow in the downstream direction towards the outlet end of the cage. A cage assembly is also provided. The valve assembly is of particular use in a wellhead assembly.

In a throttle body for reducing the fluid pressure, particularly at a control valve, preferably for arranging in a process fluid line, of a process plant, such as a chemical plant, particularly a petrochemical plant, a power plant, a brewery or the like, with a plurality of channels extending from an upstream channel inlet to a downstream channel outlet, it is foreseen that an at least section-wise curved course of at least one of the plurality of channels between the channel inlet and the channel outlet deviates from a two-dimensional extension.

In a throttle body for reducing the fluid pressure, particularly at a control valve, preferably for arranging in a process fluid line, of a process plant, such as a chemical plant, particularly a petrochemical plant, a power plant, a brewery or the like, with a plurality of channels extending from an upstream channel inlet to a downstream channel outlet, it is foreseen that an at least section-wise curved course of at least one of the plurality of channels between the channel inlet and the channel outlet deviates from a two-dimensional extension.

A flow and fluid conditioning pressure reduction valve or device includes an inlet and an outlet. The valve or device includes at least one relatively long flow bore conduit shaped as a spiral or a spiral arranged on the surface of a disc or cone. Each spiral shaped conduit includes at least one rotation and each spiral shaped conduit may be closely packed. The conduit arranged between the inlet and the outlet has reduced flow cross section area, and the length, the cross section area, and the number of the spiral shaped conduits in line determine the pressure reduction of a given fluid at a given flow rate.

A flow and fluid conditioning pressure reduction valve or device includes an inlet and an outlet. The valve or device includes at least one relatively long flow bore conduit shaped as a spiral or a spiral arranged on the surface of a disc or cone. Each spiral shaped conduit includes at least one rotation and each spiral shaped conduit may be closely packed. The conduit arranged between the inlet and the outlet has reduced flow cross section area, and the length, the cross section area, and the number of the spiral shaped conduits in line determine the pressure reduction of a given fluid at a given flow rate.

A chamber for reducing operating noise of a purge control solenoid valve (PCSV) for an evaporative emission control system comprises a first housing into which operating noise of the PCSV enters. The first housing has an inner space to change a cross sectional area of an operating noise path or an operating noise transfer direction at least once. A second housing has an upper portion coupled to a lower portion of the first housing to transfer the operating noise outside. At least one end of the chamber in a length direction thereof is connected with a vapor hose which connects a canister collecting fuel evaporation gas generated from a fuel tank with the PCSV to deliver the fuel evaporation gas to an engine and through which the fuel evaporation gas flows.

A chamber for reducing operating noise of a purge control solenoid valve (PCSV) for an evaporative emission control system comprises a first housing into which operating noise of the PCSV enters. The first housing has an inner space to change a cross sectional area of an operating noise path or an operating noise transfer direction at least once. A second housing has an upper portion coupled to a lower portion of the first housing to transfer the operating noise outside. At least one end of the chamber in a length direction thereof is connected with a vapor hose which connects a canister collecting fuel evaporation gas generated from a fuel tank with the PCSV to deliver the fuel evaporation gas to an engine and through which the fuel evaporation gas flows.

Choke valve separator, distinctive in that it comprises: an inlet, an inlet flow control valve, a choke and fluid conditioner part coupled to receive fluid from the inlet, comprising elements with conduits for flow per se or with the elements as stacked, at least in a final section thereof in the direction of flow the conduits have spiral or helical shape providing spiral or helical outlet flow from said part, a separation part, coupled to receive the fluid from the choke and fluid conditioner part comprising a volume into which the received fluid due to spiral flow or helical flow or gravity separates and distributes into phase volumes, at least two outlets from the separation part, and a housing.

Choke valve separator, distinctive in that it comprises: an inlet, an inlet flow control valve, a choke and fluid conditioner part coupled to receive fluid from the inlet, comprising elements with conduits for flow per se or with the elements as stacked, at least in a final section thereof in the direction of flow the conduits have spiral or helical shape providing spiral or helical outlet flow from said part, a separation part, coupled to receive the fluid from the choke and fluid conditioner part comprising a volume into which the received fluid due to spiral flow or helical flow or gravity separates and distributes into phase volumes, at least two outlets from the separation part, and a housing.