A pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. An orifice is disposed between the fluid inlet and the fluid outlet. A valve seat is disposed within the fluid passageway. A movable valve plug is disposed within the fluid passageway, and the valve plug interacts with the valve seat to selectively open or close the fluid passageway. A cage is disposed in the fluid passageway, the cage surrounds the valve plug, and the cage includes a mechanical stop that limits movement of the valve plug within the cage away from the valve seat.

A control valve device includes a valve main body formed to have an actuator port connected to an actuator, a communication passage formed in the valve main body and configured to allow the actuator port to communicate with a drain port, and an on/off valve provided between the communication passage and the drain port, and the on/off valve includes a seat member assembled to the valve main body, an orifice provided in the seat member, and a poppet member configured to open and close a seat portion of the seat member.

A flow washer assembly includes a housing with a channel for fluid flow, a seat positioned in the channel and including an upstream surface, and a washer press fit in the channel and engaging the upstream surface of the seat. The washer may be provided with a central opening that is sized according to predefined flow characteristics. An outside diameter of the washer at least adjacent an upstream end may be greater than an inside diameter of the channel such that the washer assumes a flexed orientation when press fit into the channel. Since the washer is pre-deflected, it will deflect further as inlet fluid pressure increases, effectively keeping the fluid flow rate relatively constant. The pre-flexing of the washer eliminates a spike in flow rate that occurs with conventional flow washer assemblies.

A flow tube including: a pin; a seat; and a guide tube, the pin and the seat are arranged at least partially in the guide tube; and wherein: the flow tube is arranged to have a closed position, wherein: the pin is in contact with the seat and fluid flow through the seat is reduced or prevented; the flow tube is arranged to have an open position, wherein: the pin is not in contact with the seat and fluid flow is increased through the seat when compared to the closed position; and the flow tube is arranged to have a forced open position, wherein: the seat is arranged such that when a force above a threshold force is applied to the seat: the seat moves away from the pin, the pin is not in contact with the seat, and the flow tube cannot move to the closed position again.

A valve housing modular system to provide different functional/construction configurations for a globe valve arranged to adjust a process fluid flow. The globe valve can have a globe valve member movable in translation along a stroke axis. The system can include a housing corpus with a process fluid inlet and outlet, a process fluid passage arranged therebetween, and an actuating opening to introduce the rod for actuating the globe valve member along the stroke axis; and a housing cover for covering the actuating opening. The cover can include a through-opening extending in the stroke-axis direction to receive the rod. The system can include different adapters for the different functional/structural configurations. The adapter(s) can have a cylindrical retaining flange having a flange height and diameter. The housing corpus can include a corpus interface adapted to the retaining flange. The housing cover can include a cover interface adapted to the retaining flange.

Provided is a fluid control valve assembly which reduces pressure loss a fluid passage line including a fluid control valve, thereby mini-minimizing the pressure for a fluid to pass therethrough to ensuring a required amount of flow without upsizing the overall assembly. The fluid control valve assembly includes an upstream pipe forming an upstream fluid passageway tilted at a predetermined angle relative to a valve axis to face an upstream chamber. The upstream chamber is formed upstream of a valve portion which has a valve seat and a valve body in a valve housing and which can open and close the fluid passageway. The wall surface of the upstream chamber is integrated with a swelling, which is projected in the chamber to thereby rectify and guide the fluid flowing therein through the upstream pipe so that the fluid smoothly flows to the valve portion.

A control valve pneumatic actuator using a transparent casing includes a casing having a cylindrical shape and made of a transparent material to enable an inside of the casing to be observed from outside, a driveshaft penetrating the inside of the casing, a diaphragm fixedly connected to the driveshaft inside the casing and vertically moving in the casing according to a movement of the driveshaft, a ring holder attached to an outer circumferential of the diaphragm and having a groove having a C-shape, a rubber ring inserted into the groove of the ring holder, a control valve connected to a lower portion of the drive shaft extending below the casing, and a yoke arranged below the casing and connecting the casing to the control valve.

A flow washer assembly includes a housing with a channel for fluid flow, a seat positioned in the channel and including an upstream surface, and a washer press fit in the channel and engaging the upstream surface of the seat. The washer may be provided with a central opening that is sized according to predefined flow characteristics. An outside diameter of the washer at least adjacent an upstream end may be greater than an inside diameter of the channel such that the washer assumes a flexed orientation when press fit into the channel. Since the washer is pre-deflected, it will deflect further as inlet fluid pressure increases, effectively keeping the fluid flow rate relatively constant. The pre -flexing of the washer eliminates a spike in flow rate that occurs with conventional flow washer assemblies.

The present disclosure relates to a hydraulic component with a valve unit for a hydraulic system, and a hydraulic system having such a hydraulic component. The valve unit of the hydraulic component has a valve block and a valve piston. The valve piston is moveably along a first bore supported in the valve block. Further, the valve unit is admittable with pressurized hydraulic fluid and is configured such that the valve piston can be moved between a closed position and an open position. The hydraulic component according to the disclosure is particularly characterized in that the first bore is configured as a through-hole through the entire valve block and the hydraulic component has a collecting unit. The collecting unit at least partially surrounds the two end openings of the first bore and is configured collect and drain hydraulic fluid leaking out of the two end openings of the bore.

A fluid end is formed from a first body attached to a separate second body. Each body includes an external surface. When the bodies are attached, their respective external surfaces are in flush engagement. A plurality of bores are formed in the second body that are alignable with a plurality of corresponding bores formed in the first body. The fluid end may be used with seals disposed within recesses within each bore to seal against corresponding sealing surfaces. Further, retaining closures may be bolted to the fluid end bodies, such that the closures have a threadless connection to the fluid end bodies. Various combinations of such components may be utilized.