Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

A member that is a single element for controlling flow through an inflow control device, has anisotropic density configured to move the member relative to the inflow control device such that the inflow control device allows, fully blocks, or partially blocks flow from a zone to a production string based on a density of a fluid flowing into the inflow control device from the zone.

A member that is a single element for controlling flow through an inflow control device, has anisotropic density configured to move the member relative to the inflow control device such that the inflow control device allows, fully blocks, or partially blocks flow from a zone to a production string based on a density of a fluid flowing into the inflow control device from the zone.

A flow resistance insert of a flow rate measuring or flow rate control has contiguous discs between which at least one central axial flow duct is formed from which radial flow ducts branch off. The discs include alternating first discs and second discs. While the first discs are circumferentially closed ring discs, the second discs are circumferentially slotted one-piece ring discs.

A flow resistance insert of a flow rate measuring or flow rate control has contiguous discs between which at least one central axial flow duct is formed from which radial flow ducts branch off. The discs include alternating first discs and second discs. While the first discs are circumferentially closed ring discs, the second discs are circumferentially slotted one-piece ring discs.

A check valve includes a valve element and a valve body having a body housing, an annular valve seat insert, a bushing, and a biasing member. The body housing includes an outer circumferential wall extending between an inlet port and an outlet port to define a valve cavity therebetween. The valve seat insert is seated in a body seat surface surrounding the inlet port. The bushing is disposed in the valve cavity and defines a central bore, with the bushing including an outboard end surface axially engageable with the valve seat insert. The biasing member is disposed between a bearing portion of the body housing and an inboard end of the bushing to allow for axial movement of the bushing with respect to the body seat surface. The valve element extends through the bushing central bore and is movable between a closed position and an open position.

An indexing valve for a regenerative thermal oxidizer (RTO). A valve housing includes a diverter assembly further comprising: a pipe shaft, the pipe shaft disposed through the valve housing; a diverter blade subassembly connected to the pipe shaft between the pipe shaft ends for rotating within the valve housing, the rotation of which is supported by a bearing assembly at the base; the diverter blade subassembly further comprising a pair of opposing diverter plates, each of the diverter plates curved, wherein a large-volume inlet plenum is defined between the diverter plates for receiving fluid flow from one of the ports. To aid in sealing, the corner section ends within the housing extend beyond a width of each corner and are chamfered to limit wear of the seal. Fluid flow is either atmospheric pressure or negative pressure relative to said valve housing to further aid in sealing.

Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

An injection valve for being in contact with an abrasive fluid has a cylinder having a cylinder length, an inner cylinder diameter and a cylinder wall, and a piston having an outer piston diameter and an outer piston face, the piston being movable in the cylinder. A first tubular liner is arranged between the cylinder wall and the piston so that the piston moves, at least partly, within the first tubular liner, the first tubular liner having a liner length, a first inner liner diameter and an inner liner face that has coating.

An injection valve for being in contact with an abrasive fluid has a cylinder having a cylinder length, an inner cylinder diameter and a cylinder wall, and a piston having an outer piston diameter and an outer piston face, the piston being movable in the cylinder. A first tubular liner is arranged between the cylinder wall and the piston so that the piston moves, at least partly, within the first tubular liner, the first tubular liner having a liner length, a first inner liner diameter and an inner liner face that has coating.