A pressure regulator has a housing with an inlet, an outlet and a valve seat. A regulator sleeve is arranged within the housing and defines a flow channel from an upstream end adapted for cooperating with the valve seat towards a downstream end associated with the outlet. A spring biases the regulator sleeve towards the outlet. The downstream end of the flow channel tapers outwardly.

An inlet pressure valve regulation system to provide a regulated fluid flow includes a housing, first piston assembly, regulating valve, and inlet pressure conduit. The housing has an inlet at an inlet end which receives a pressurized fluid and an outlet at an outlet end which provides the regulated fluid flow. The piston assembly is arranged in the housing and has a first cavity and a control orifice to fluidly connect the inlet to the first cavity. The first piston assembly is configured to regulate the fluid flow. The regulating valve has a first valve chamber, a second valve chamber fluidly connected to a vent, a floating valve seat disposed between the first valve chamber and the second valve chamber, and a valve component. The floating valve seat includes a diaphragm and a seat having a passageway to fluidly connect the first valve chamber and the second valve chamber.

A device (1) for controlling the flow of a fluid through a conduit (3) from an upstream side (8) to a downstream side (10). The device includes one or more valve apertures (6) through which the flow of fluid is selectively controlled. A valve member (12) is arranged to move reciprocally to selectively open and close the one or more valve apertures. The device includes a stop (18) for arresting the travel of the valve member arranged at or beyond a position the valve member reaches when at least some of the one or more valve apertures are open. The valve member includes an end portion (13) arranged to come into contact with the stop when the valve member reaches or passes the position at which at least some of the one or more valve apertures are open and a body portion (9).

A valve device that includes a first valve body including an opening; a second valve body arranged within the first valve body and movable relative to the first valve body; a first valve seat arranged around an opening of a valve chamber, wherein the first valve body contacts the first valve seat; a second valve seat arranged around the opening of the first valve body, wherein the second valve body contacts the second valve seat; a piston applying a force to the second valve body by contacting the second valve body such that the second valve body is separated from the second valve seat; a movement restricting member fixed to the first valve body and restricting a movement of the second valve body in an axial direction relative to the first valve body; and a rotation restricting member restricting rotation of the first valve body relative to the second valve body.

A pressure reducing valve with a valve housing, with a valve carrier in the housing interior having a throughflow channel, and with a cup-shaped valve body displaceably guided from an open position into a closed position counter to a restoring force, where the valve body abuts a valve seat on the valve carrier formed as a sealing ring, closing a channel opening. The sealing ring is held in an annular groove of the valve carrier and is axially supported by the groove flanks. The groove flank which faces the valve body ends in front of the inner circumference thereof, which abuts the sealing ring when the pressure reducing valve is closed. A sealing-lip-like circumferential molded-on formation is molded on that end face of the sealing ring which faces the valve body, and this formation moves against the inner circumference of the valve body when the primary pressure on the inlet side of the valve rises.

A device for controlling the flow of a fluid through a conduit from an upstream side of the device to a downstream side of the device. The device includes a valve aperture (30), a cylindrical mounting member (24) on the downstream side of the valve aperture, a valve member (26) on the outside of the cylindrical mounting member that moves reciprocally to open and close the valve aperture, a control volume (44) defined between the cylindrical mounting member and the valve member, an arrangement (8) for introducing a control pressure into the control volume, and a seal (34) between the outer surface of the cylindrical mounting member and the inner surface of the valve member that substantially seals the control volume. The valve member is acted on by the pressure of the upstream side (PI) and the control pressure (P4) so as to be moved by the difference between these pressures.

The present invention relates to a pressure-reducing valve (1) having a valve housing (2), in the housing interior of which is provided a valve carrier (4) which has at least one through-flow channel (5), and having a pot-shaped valve body (3) which is guided displaceably from an open position into a closed position in opposition to a restoring force, in which closed position the valve body (3) abuts by way of the circumferential edge (6) of its pot shape in such a manner against a valve seat (7), which is provided on the valve carrier (4), that the valve body (3) closes at least one channel opening (8) of the at least one through-flow channel (5). It is characteristic of the pressure-reducing valve (1) according to the invention that at least one retaining sleeve (9), into which in each case a retaining pin (10) provided on the valve body (3) or on the valve carrier (4) protrudes, is provided on the valve carrier (4) or on the valve body (3), and that a stop (11), which interacts with a counter stop (12) on the outside circumference of the retaining pin (10) in such a manner that in the open position of the pressure-reducing valve (1) the stop (11) and the counter stop (12) delimit the sliding distance of the valve body (3) relative to the valve carrier (4), is provided on the inside circumference of the retaining sleeve (9).

A device (1) for controlling the flow of a fluid through a conduit (3) from an upstream side (8) to a downstream side (10). The device includes a housing (4) having one or more valve apertures (6) through which the flow of fluid is selectively controlled. A valve member (12) is mounted on the housing and arranged to move reciprocally to selectively open and close the one or more valve apertures. A seal (20) is arranged at or beyond a position the valve member reaches when the one or more valve apertures are all closed. The device also includes a resilient member (26) that acts to bias the seal towards the valve member.

An expansion valve (1) for a vapour compression system, the valve (1) comprising a first valve part (5) having an outlet orifice (7) and a piston (8) movable inside the outlet orifice (7) in response to a differential pressure across the expansion valve (1), controlling a fluid flow through the first valve part (5). A cross-sectional flow area of the outlet orifice (7) between a circumference at an inner surface of the outlet orifice (7) and a circumference at an outer surface of the piston (8) varies as a function of the position of the piston (8) relative to the outlet orifice (7). A first cross-sectional flow area is defined at a first differential pressure, and a second cross-sectional flow area is defined at a second differential pressure, where the first cross-sectional flow area is smaller than the second cross-sectional flow area, and the first differential pressure is lower than the second differential pressure.

In the disclosure a fluid mixing valve for mixing a first fluid and a second fluid is provided, comprising: a housing; a balance valve module for balancing pressure between the first fluid and the second fluid, comprising a first fluid inlet, a second fluid inlet, a first fluid outlet in fluid communication with the first fluid inlet, and a second fluid outlet in fluid communication with the second fluid inlet; an adjustable valve module disposed on the balance valve module, comprising an inner casing member, flow-rate adjustment seat secured to the inner casing member, and a temperature adjustment shaft received in the inner casing member; and a mixed fluid discharging passage.