A discharge cold switching valve includes: an operating member, a discharge cold switching member, and a water outlet switching member. The discharge cold switching valve has a discharge cold channel and a water outlet channel. When the operating member is in the initial position, the discharge cold switching member is in the first position, the joint between the water outlet channel and the water inlet end are sealed, the discharge cold channel opens; when the operating member switches to the shower position, the discharge cold switching member is moved by the operating member to the second position, the joint between the discharge cold channel and the water inlet end are sealed, and the water outlet channel opens, engaging the operating member with the water outlet switching member. The operating member drives the water outlet switching member to open one or both of the first and second water outlet passages.

The invention relates to a waste heat recovery system (1) comprising a working fluid circuit (18), having a heat exchanger which is connected in an exhaust gas line (4) of an internal combustion engine (2). The heat exchanger is part of the working fluid circuit (18) together with an expansion machine (20) which has at least one working fluid bypass (21) that is controlled by a valve. According to the invention, a waste heat recovery system (1) is provided with improved functionality. This is achieved in that the valve is a directional valve which connects a fluid inlet (36) to an expansion machine fluid outlet (37) and/or a bypass fluid outlet (38), in particular a 3/2-way valve (22), and the connection of the fluid inlet (36) to the expansion machine fluid outlet (37) is leakage-free relative to the bypass fluid outlet (38), whereas the connection of the fluid inlet (36) to the bypass fluid outlet (38) exhibits leakages with respect to the expansion machine fluid outlet (37).

Fluid flow control apparatus for use with fluid valves are disclosed. An apparatus includes a plug for a sliding stem fluid valve. The plug has a first portion slidably coupled to a second portion. The apparatus also includes a seal gland formed in an outer circumferential surface of the plug by the first portion and the second portion. A dimension of the seal gland changes when the first portion slides relative to the second portion to displace a seal disposed in the seal gland. The seal sealingly engages a cage of the fluid valve when the second portion contacts a seat of the fluid valve.

Seal assemblies for use with fluid valves are disclosed. An apparatus includes a valve plug having a first annular shoulder adjacent an end of the valve plug, a seal disposed on the first annular shoulder, and a fastener at the end of the valve plug to force the seal against the first annular shoulder to apply a load to the seal.

A valve component includes a valve housing having a passage extending along a longitudinal axis; a valve component mountable on the valve housing; a seal to circumferentially seal between the valve housing and the valve component; and a contact abutment to be disposed in the axial direction between the seal and valve housing, and which is configured to be movable in a pre-assembled state relative to the valve housing and the valve component. In an assembled state, the seal can be inserted into an annular-groove-shaped seal receptacle limited by the valve component, valve housing, and contact abutment. The valve housing, valve component, and contact abutment can be matched to each other such that the seal receptacle is reduced when the valve component is mounted on the valve housing, the contact abutment being supported on the valve housing. The contact abutment can undergo a relative movement relative to the valve component.

A drilling choke including a choke body defining an internal region, an inlet passage, and an outlet passage, a seat extending within the outlet passage, a nose extending within the internal region and defining a recessed region, a plug extending within the recessed region, and a stem connected to the plug and extending axially therethrough, the stem defining an internal passage. The plug can be engaged with the seat to at least partially restrict fluid flow from the inlet passage to the outlet passage via the internal region. The stem and the plug are together axially moveable in opposing directions relative to the seat to thereby control a backpressure of the fluid flow. In some embodiments, the recessed region of the nose is in fluid communication with the outlet passage of the choke body via the internal passage of the stem to thereby pressure balance the plug.

Drain valves with rotatable angled outlets that can be rotated without allowing flow or stopping flow through the valve, containers including the valves, and methods of using the valves, are disclosed.

A drilling choke including a choke body defining an internal region, an inlet passage, and an outlet passage, a seat extending within the outlet passage, a nose extending within the internal region and defining a recessed region, a plug extending within the recessed region, and a stem connected to the plug and extending axially therethrough, the stem defining an internal passage. The plug can be engaged with the seat to at least partially restrict fluid flow from the inlet passage to the outlet passage via the internal region. The stem and the plug are together axially moveable in opposing directions relative to the seat to thereby control a backpressure of the fluid flow. In some embodiments, the recessed region of the nose is in fluid communication with the outlet passage of the choke body via the internal passage of the stem to thereby pressure balance the plug.

Example multiple stage anti-surge valves are disclosed. In some examples, an apparatus includes a cage having a first section adjacent the valve seat with a first fluid flow passage, a second section spaced from the first section along a longitudinal axis of the cage with a second fluid flow passage, and a third section devoid of a fluid flow passage between the first and second sections. The example apparatus includes a plug slidably disposed in the cage, the plug having a third fluid flow passage through a skirt of the plug, the third fluid flow passage to be fluidly coupled to the second fluid flow passage during a stroke of the plug.

A temperature response valve is disclosed. The valve has a body with an outside surface and an outlet. The valve has a sleeve that partly engages the outside surface of the valve body to direct, via channels on an inner surface of the sleeve, water flowing out of the valve body outlet. The water is held into contact with part of the outer surface and expelled at a removed end of the sleeves where the channels open to the environment. The valve engages the threads on a threaded male member of an outside faucet.