A solenoid-actuated valve includes a solenoid portion extending along a longitudinal axis. The solenoid portion includes a solenoid housing defining a solenoid interior, a coil, and an armature, with the armature being moveable along the longitudinal axis in response to energization of the coil. The solenoid-actuated valve also includes a valve portion coupled to the solenoid portion. The valve portion includes a valve member moveable by the armature. The solenoid-actuated valve further includes a valve filter disposed in the solenoid interior and/or coupled to the solenoid housing and configured to separate the solenoid interior from a hydraulic circuit when the valve portion is coupled to a valve housing for allowing fluid to flow into and out of the solenoid interior upon actuation of the armature.

There is described a media metering valve (18) comprising a main body (21) having a media inlet (26), a central bore (24) extending through the main body (21), said media inlet (26) being in communication with the central bore (24) and a chamber (28) formed in communication with the central bore (24). A base member (23) attachable to the main body (21), the base member (23) having a central passage (27) extending therethrough, said central passage (27) extending orthogonal to the central bore (24) of the main body and being in fluid communication with said central bore (24). A cap member (22) is mounted to the main body (21) so as to substantially enclose the chamber (28). A piston (30) is movably mounted within the chamber (28). The piston (30) having a plunger member (31) rigidly connected thereto, the plunger member (31) being positioned within the central bore (24) to move in a reciprocal manner therein under action of the piston (30). A bypass member (40) is sealingly mounted about said plunger (31) member to provide a seal between the chamber (28) and the central bore (24). Pressurised air is delivered to said central passage (27) of the base member (23) to receive media delivered from the media inlet (26) when the plunger member (31) is in an open position. Wherein, upon the seal between the chamber (28) and the central bore (24) becoming compromised the bypass member (40) functions to equalise air pressure between the chamber (28) and the central bore (24) to minimise the egress of air and media from the central bore (24) to the chamber (28).

There is described a media metering valve (18) comprising a main body (21) having a media inlet (26), a central bore (24) extending through the main body (21), said media inlet (26) being in communication with the central bore (24) and a chamber (28) formed in communication with the central bore (24). A base member (23) attachable to the main body (21), the base member (23) having a central passage (27) extending therethrough, said central passage (27) extending orthogonal to the central bore (24) of the main body and being in fluid communication with said central bore (24). A cap member (22) is mounted to the main body (21) so as to substantially enclose the chamber (28). A piston (30) is movably mounted within the chamber (28). The piston (30) having a plunger member (31) rigidly connected thereto, the plunger member (31) being positioned within the central bore (24) to move in a reciprocal manner therein under action of the piston (30). A bypass member (40) is sealingly mounted about said plunger (31) member to provide a seal between the chamber (28) and the central bore (24). Pressurised air is delivered to said central passage (27) of the base member (23) to receive media delivered from the media inlet (26) when the plunger member (31) is in an open position. Wherein, upon the seal between the chamber (28) and the central bore (24) becoming compromised the bypass member (40) functions to equalise air pressure between the chamber (28) and the central bore (24) to minimise the egress of air and media from the central bore (24) to the chamber (28).

An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.

An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.

Embodiments of the present disclosure include a system for controlling a fluid flow. The system includes a valve body including a bore extending along an axis, an inlet, and an outlet, wherein a flow passage extends transverse the axis from the inlet to the outlet, a stem extending through the bore along the axis, and a valve member coupled to the stem. The valve member is movable along the axis, via the stem, between a closed position where the valve member blocks the flow passage to an open position where the valve member does not block the flow passage. The system also includes a balancing system coupled to the valve member, the balancing system comprising a tether and a balance member, wherein an opening force unseating the valve member is translated to the balance member.

A fluid actuation system controls fluid flow between a container and the external environment. The fluid actuation system has an actuator housing which houses a cradle member secured to the actuator housing. An actuator member is slidably received within the cradle member with the actuator member having an actuator member flow conduit for communication fluid flow from the container to and external environment. A toggle latch member is moveable to a first position for continuous fluidic transfer, to a second position for manual control of the fluidic flow, or a third position when fluidic flow is blocked.

A fluid actuation system controls fluid flow between a container and the external environment. The fluid actuation system has an actuator housing which houses a cradle member secured to the actuator housing. An actuator member is slidably received within the cradle member with the actuator member having an actuator member flow conduit for communication fluid flow from the container to and external environment. A toggle latch member is moveable to a first position for continuous fluidic transfer, to a second position for manual control of the fluidic flow, or a third position when fluidic flow is blocked.

A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.

A solenoid-actuated valve includes a solenoid portion extending along a longitudinal axis. The solenoid portion includes a solenoid housing defining a solenoid interior, a coil, and an armature, with the armature being moveable along the longitudinal axis in response to energization of the coil. The solenoid-actuated valve also includes a valve portion coupled to the solenoid portion. The valve portion includes a valve member moveable by the armature. The solenoid-actuated valve further includes a valve filter disposed in the solenoid interior and/or coupled to the solenoid housing and configured to separate the solenoid interior from a hydraulic circuit when the valve portion is coupled to a valve housing for allowing fluid to flow into and out of the solenoid interior upon actuation of the armature.