A system for securing a valve actuator to a valve assembly includes an actuator housing with a plurality of housing lugs protruding radially. A cylinder assembly is located within the actuator housing and has a horseshoe connector to engage a valve stem nub of a valve stem and transfer axial movement of the horseshoe connector to axial movement of the valve stem. A bonnet has a plurality of bonnet lugs protruding radially from the bonnet to define a plurality of bonnet slots therebetween, wherein each of the plurality of housing lugs are sized to pass axially through a respective one of the plurality of bonnet slots when the actuator housing is in a released position, the actuator housing being rotatable to a locked position such that the plurality of bonnet lugs prevent axial movement of the actuator housing in at least one direction.

A plumbing fitting couplable with a free-end portion of a pipe. The fitting has a chamber with an opening and an interior chamber wall with a circumferentially extending chamber groove, and an end bushing with an interior opening sized to receive the pipe free-end portion and an exterior wall portion having an outwardly projecting, circumferentially extending locking member within the chamber groove to resist movement of the end bushing out of the first chamber opening. A seal and gripper ring within the chamber seal with and releasably grip the pipe free-end portion. The end bushing interior opening has an end bushing interior wall portion sized to be engaged by the free-end portion of the pipe when within the end bushing interior opening to resist disengagement of the locking member from the chamber groove while the free-end portion of the pipe is within the end bushing interior opening.

A valve assembly includes an actuator adapted to drive movement of a valve member between an open position and a closed position. The valve assembly also includes a bonnet coupled to the actuator and a valve body coupled to the bonnet, the bonnet arranged between at least a portion of the actuator and the valve body. The valve assembly further includes a quick connector adapted to couple the bonnet to the valve body. The quick connector includes a plurality of bonnet lugs separated by a plurality of spaces, the plurality of bonnet lugs extending radially outward from an axis. The quick connector also includes a plurality of valve body lugs configured to interact with the plurality of bonnet lugs, the plurality of bonnet lugs being arranged to axially align with the plurality of valve body lugs to block axial movement of the bonnet with respect to the valve body.

A plug assembly includes a plug stem having a plug stem base, a plug head, and a fastening mechanism for fastening the plug stem base to the plug head, the fastening mechanism comprising at least two retainer clamps that surround and provide an interference fit between the plug stem base and the plug head. A method of replacing or attaching a plug head to a plug stem includes providing a plug stem having a plug stem base, providing a plug head, providing a fastening mechanism comprising at least two retainer clamps, and coupling the fastening mechanism around the plug stem base and the plug head to provide an interference fit between the plug stem base and the plug head.

A valve and adapter for coupling a tubing to the valve. The adapter has first and second adapter end portion with connected fluid passageways. The second adapter end portion being insertable into the free-end portion of the tubing. A valve housing has a first chamber sized to receive the first adapter end portion and a second chamber has inward and outward fluid ports. When the first adapter end portion is positioned within the first chamber, an outer end portion of its fluid passageway is in fluid communication with the inward fluid port of the second chamber. A seal and gripper ring within the first chamber seal with and releasably grip the first adapter end portion. A valve element selectively control fluid flow between the first and second fluid passageways. The adapter may be used with a test cap and other fittings which include a seal and a gripper ring.

A closure assembly including a retaining cover, a first catch plate sitting partially within the retaining cover, a second catch plate sitting partially within the retaining cover opposite the first catch plate and spaced apart from the first catch plate, and a closure pressing against the first catch plate and pressing against the second catch plate.

A valve seat includes a generally cylindrical body that defines a bore extending axially therethrough and has an outer surface. An enlarged diameter portion extends axially from the generally cylindrical body and defines a shoulder surface and an annular surface disposed opposite the shoulder surface; the annular surface is configured to form a seal with a displaceable portion of a valve. An annular notch is formed in the outer surface of the generally cylindrical body. The annular notch is configured to reduce a contact area between the outer surface and an interface surface of a cylinder block to facilitate hydraulic ejection of the valve seat from the cylinder block. An annular channel is formed in the outer surface of the generally cylindrical body and is disposed axially below the annular notch. The annular channel is configured to receive a hydraulic fluid to compress radially the generally cylindrical body.

A system for securing a valve actuator to body of a valve assembly includes an actuator housing having housing lugs protruding radially to define a plurality of housing slots therebetween. A bonnet has bonnet lugs protruding radially to define a plurality of bonnet slots therebetween. Each of the housing lugs are sized to pass axially through a respective one of the bonnet slots when the actuator housing is in a released position and, after passing through the bonnet slots, the actuator housing is rotatable to a locked position where at least a portion of one or more of the housing lugs is axially aligned with a portion of a respective bonnet lug to prevent axial movement of the actuator housing, the actuator housing rotating less than one full revolution between the released and locked positions. A securing mechanism prevents relative rotation between the actuator housing and the bonnet.

Embodiments disclosed herein describe systems and methods for a spring retainer configuration without suction bore grooves, wherein the spring retainer may be secured in place via a keeper. By eliminating the grooves, embodiments may reduce the surface area of the bore intersection, which may slow the rate of material erosion. Accordingly, embodiments may extend the life of a fluid end in high pressure environments.

A method for producing a manifold is disclosed, wherein an additive manufacturing process is used to produce the manifold.