A method of manufacturing a fluid-handling component includes forming a liner via an additive manufacturing process and forming a body about the liner via a powder compaction process. The body may be coupled to the liner via diffusion bonds during the powder compaction process. The fluid-handling component may be constructed for use in a mineral extraction system.

The invention relates to a slide valve (200) comprising:

a body (201) having a through-duct (202) for the passage of a fluid, the flow rate of which is to be controlled,

at least one gate (203) slidably mounted inside said body (201), crosswise to said duct (202), and partially or completely closing off said duct (202), said gate (203) being movable between a position in which the duct is partially or completely closed off and a position in which the duct is open,

in which the following are defined as portions subject to erosion: portions of the body that delimit the duct (202), at least one portion of said at least one gate (203) located across the duct (202) when said at least one gate partially or completely closes off said duct, characterized in that at least said portions subject to erosion are made of metal covered with a layer of ceramic material or are entirely made of ceramic material.

A valve rod (12) for a vacuum valve, the plunger having a first connection region (40) for a closure member (5) of the vacuum valve and at least one second connection region (41) for a valve drive of the vacuum valve. At least some sections of the valve rod (12) have a material (42) with an elastic modulus of at least 250 gigapascal, preferably at least 350 gigapascal.

A slide valve having a valve disc that is slidably movable between a fully-retracted fully-open position and a fully-extended fully-closed tight shutoff position by an actuating stem. The actuating stem is flexibly coupled to the valve disc. The valve disc is selectively modulated between the fully-extended fully-closed tight shutoff position and a partially-retracted non-tight shutoff position to prevent sticking of the valve disc in the fully-extended fully-closed tight shutoff position.

The present invention relates to a vacuum gate valve including a valve body in which an inlet and an outlet are formed, a blocking plate formed on a fluid passage between the inlet and the outlet, a driving unit which is installed on the valve body to be connected to the blocking plate and moves the blocking plate to open or close the fluid passage, and a light-transmission plate which is installed on an opening formed in the blocking plate and transmits light between the inlet and the outlet in a closed state of the blocking plate, and a vacuum system including the same.

A valve comprising a valve body and a gate. The valve body defines a valve port and a guide channel. The gate is configured to slide along the guide channel between an open and closed configuration. A guide assembly within the guide channel of the valve comprises a track mounted in the guide channel, a gap defined between the guide channel and the track, a barrier covering the gap, and a cured adhesive within the gap.

Intended is to improve the corrosion resistance of an overlay used in a nuclear power plant, and to reduce dissolution of cobalt from an overlay. The corrosion and wear resistant overlay 7 is formed along a surface of a base 2 by laser lamination modeling, and is configured from a plurality of metal layers 1a, 1b, 1c, and 1d of a Co-base alloy. The thickness of carbide eutectics that precipitate in the metal layers 1a, 1b, 1c, and 1d is the largest in the metal layer 1a closest to the base 2, and is gradually smaller in the metal layers 1b, 1c, and 1d farther away from the base 2. The intensity of the laser beam applied to form layers by laser lamination modeling is adjusted so that the carbide eutectics that precipitate in at least the outermost metal layer 1d have a controlled size of 10 m or less.

The present invention discloses a method for manufacturing a slide gate, involving providing a gate body with a first face and integrally forming an integral gate seal with the gate body through a hybrid manufacturing process. The hybrid manufacturing process includes depositing an additive material onto the first face of the gate body to create the integral gate seal, with the deposition carried out by a first machine. Subsequently, the integral gate seal is machined to achieve the desired size and shape, with the machining also performed by the same first machine. This method combines additive manufacturing and machining techniques to efficiently produce slide gates with integral gate seals of precise dimensions and configurations.

An example apparatus is disclosed herein comprising a valve that includes a valve body defining a fluid passageway between an inlet and an outlet, a flow control member in the fluid passageway, a stem coupled to the flow control member, and a bonnet coupled to the valve body. The stem extends through a channel in the bonnet. A section of the channel forms a bore. The bore is threaded. The apparatus includes packing in the channel to form a seal between the bonnet and the stem. The apparatus includes a worm wheel nut threadably engaged with the bore. The stem extends through an opening in the worm wheel nut. The apparatus also includes a worm meshed with the worm wheel nut. The worm is to rotate the worm wheel nut to cause the worm wheel nut to move and adjust a load on the packing.